Academic literature on the topic 'Microstructure defects'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Microstructure defects.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Microstructure defects"

1

Chen, Xiao Hui, and Xiao Jun Liu. "Automatic Inspection of Typical Microstructure Defects Based on Image Processing Techniques." Applied Mechanics and Materials 44-47 (December 2010): 2622–26. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2622.

Full text
Abstract:
Micro-structural defects influence the performance of MEMS devices. For effective quality monitoring and assurance in mass-production of MEMS devices, it is necessary to conduct automatic defect inspection. In this paper, an approach based on image processing for automatic microstructure defect inspection is presented. In the approach, an Influence Region Template is built based on a reference microstructure image while it preserves the framework and restrains the tiny distortion of the reference, then the test microstructure image is compared with the Influencing Region Template for quality e
APA, Harvard, Vancouver, ISO, and other styles
2

Murr, L. E. "Microstructure-property hypermaps for shock-loaded materials." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 416–19. http://dx.doi.org/10.1017/s0424820100143675.

Full text
Abstract:
Residual deformation-induced metallurgical effects or structure (microstructure)-property relationships are now generally well documented to be the result of stress or strain-induced microstructures, or microstructural changes in polycrystalline metals and alloys. In many cases, strain hardening, work hardening, or other controlling deformation mechanisms can be described by the generation, movement, and interactions of dislocations and other crystal defects which produce drag, or a range of impedances, including obstacles to dislocation motion.
APA, Harvard, Vancouver, ISO, and other styles
3

Wu, Fan. "Microstructure and Defect Study in Thin Film Heterostructure Materials." Nanoscience & Nanotechnology-Asia 10, no. 2 (2020): 109–16. http://dx.doi.org/10.2174/2210681208666181008143408.

Full text
Abstract:
Deformation twins and phase interface are important planar defects and microstructures that greatly influence the overall performance of a material system. In multi-layer thin-film heterostructures, their effect is more manifest due to the small dimension of thin films and their influence on the growth of multi-layer structures. This article reviews the recent progress in microstructure and defects observed in thin film heterostructures, serving as a guideline for future research in this field. The multilayer thin-film heterostructures studied here were grown by pulsed laser deposition techniq
APA, Harvard, Vancouver, ISO, and other styles
4

Selyshchev, Pavlo, and V. Sugakov. "Nanoscale Modulation of Material Properties by Means of Irradiation." Key Engineering Materials 708 (September 2016): 30–34. http://dx.doi.org/10.4028/www.scientific.net/kem.708.30.

Full text
Abstract:
A theoretical approach is developed to describe creation of space-periodical modulation of microstructure by means irradiation and influence of this modulation on properties of the irradiated material. It has considered nonlinear dynamics of development of radiation-induced defects. The structure of defects drives microstructure and changes material properties. It is found that nanoscale space-periodical distribution is results of interaction of radiation-induced defects both with each other and with elements of microstructure. It is shown that homogenous defect distribution become instable an
APA, Harvard, Vancouver, ISO, and other styles
5

Szpunar, Jerzy A., and Bae Kyun Kim. "High Temperature Oxidation of Steel; New Description of Structure and Properties of Oxide." Materials Science Forum 539-543 (March 2007): 223–27. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.223.

Full text
Abstract:
The quality of steel sheets is strongly affected by the surface defects that can be generated during hot rolling and are often related to scales removal operation. These defects are related to rather complex high temperature oxidation processes. In order to reduce an occurrence of the defects, it is necessary to understand better the formation of iron oxides during high temperature oxidation, the structure of the interfaces with the substrate and between different oxide phases. However, due to the lack of good experimental research tools details of iron oxide microstructures were not investiga
APA, Harvard, Vancouver, ISO, and other styles
6

YEOM, JONG-TAEK, JEOUNG HAN KIM, JAE-KEUN HONG, NHO-KWANG PARK, and CHONG SOO LEE. "INFLUENCE OF INITIAL MICROSTRUCTURE ON HOT WORKABILITY OF Ti-6Al-4V ALLOY." International Journal of Modern Physics B 23, no. 06n07 (2009): 808–13. http://dx.doi.org/10.1142/s0217979209060063.

Full text
Abstract:
Hot workability of Ti -6 Al -4 V alloy with different initial microstructures was investigated by considering processing maps and the dynamic material deformation behavior. The emphasis has been focused on the effect of initial microstructure (equiaxed versus bimodal structure). Process maps were generated using the dynamic material model (DMM), unifying the relationships between constitutive deformation behavior, hot workability and microstructures evolution. Also, the flow instability was investigated using the various flow instability criteria and microstructural analysis. To establish the
APA, Harvard, Vancouver, ISO, and other styles
7

Choudhury, Amitava, Snehanshu Pal, Ruchira Naskar, and Amitava Basumallick. "Computer vision approach for phase identification from steel microstructure." Engineering Computations 36, no. 6 (2019): 1913–33. http://dx.doi.org/10.1108/ec-11-2018-0498.

Full text
Abstract:
PurposeThe purpose of this paper is to develop an automated phase segmentation model from complex microstructure. The mechanical and physical properties of metals and alloys are influenced by their microstructure, and therefore the investigation of microstructure is essential. Coexistence of random or sometimes patterned distribution of different microstructural features such as phase, grains and defects makes microstructure highly complex, and accordingly identification or recognition of individual phase, grains and defects within a microstructure is difficult.Design/methodology/approachIn th
APA, Harvard, Vancouver, ISO, and other styles
8

Chen, Kunfeng, Yanlu Li, Chao Peng, Zheng Lu, Xingyun Luo, and Dongfeng Xue. "Microstructure and defect characteristics of lithium niobate with different Li concentrations." Inorganic Chemistry Frontiers 8, no. 17 (2021): 4006–13. http://dx.doi.org/10.1039/d1qi00562f.

Full text
Abstract:
Li vacancies and Nb antisites are stable point defects in congruent lithium niobate. The intrinsic point defects induce the Li/Nb cation mixing, the formation of temperature-dependent defect microstructures, and disorder within the LiNbO3 lattice frame.
APA, Harvard, Vancouver, ISO, and other styles
9

Pataric, Aleksandra, Marija Mihailovic, Branislav Markovic, Miroslav Sokic, Andreja Radovanovic, and Branka Jordovic. "Microstructure as an essential aspect of EN AW 7075 aluminum alloy quality influenced by electromagnetic field during continuous casting process." Chemical Industry 75, no. 1 (2021): 31–37. http://dx.doi.org/10.2298/hemind201214006p.

Full text
Abstract:
Microstructure assessment is crucial for the design and production of high-quality alloys such as cast aluminum alloy ingots. Along with the effect of a more homogeneous microstructure to result in much better mechanical properties, better as-cast alloy quality indicates a higher efficiency of the aluminum alloys production process. During the aluminum alloy solidification process many microstructural defects can occur, which deteriorate the mechanical properties and hence decrease the usability of such an ingot. Application of the electromagnetic field during the vertical continuous casting p
APA, Harvard, Vancouver, ISO, and other styles
10

Xu, Qing Yan, Bai Cheng Liu, Zuo Jian Liang, Jia Rong Li, Shi Zhong Liu, and Ha Llong Yuan. "Modeling of Unidirectional Growth in a Single Crystal Turbine Blade Casting." Materials Science Forum 508 (March 2006): 111–16. http://dx.doi.org/10.4028/www.scientific.net/msf.508.111.

Full text
Abstract:
Single crystal superalloy turbine blade are widely used in aero-engineering. However, there are often grain defects occurring during the fabrication of blade by casting. It is important to study the formation of microstructure related defects in turbine blades. Single crystal blade sample castings of a nickel-base superalloy were produced at different withdrawal rates by the directional solidification process and investment casting. There was a difference between the microstructure morphology at the top part of the turbine blade sample castings and the one at the bottom. Higher withdrawal rate
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Microstructure defects"

1

Yi, Jianzhang. "Effect of microstructure and defects on the fatigue behaviour of cast A356-T6 aluminium-silicon alloy." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405613.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hayward, Erin G. "Atomistic studies of defects in bcc iron: dislocations and gas bubbles." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44761.

Full text
Abstract:
The structure and interactions of the defects in material on an atomistic scale ulti- mately determine the macroscopic behavior of that material. A fundamental understanding of how defects behave is essential for predicting materials failure; this is especially true in an irradiated environment, where defects are created at higher than average rates. In this work, we present two different atomistic scale computational studies of defects in body centered cubic (bcc) iron. First, the interaction energies between screw dislocations (line defects) and various kinds of point defects will be calcula
APA, Harvard, Vancouver, ISO, and other styles
3

Adegoke, Olutayo. "Processability of Laser Powder Bed Fusion of Alloy 247LC : Influence of process parameters on microstructure and defects." Licentiate thesis, Högskolan Väst, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-16114.

Full text
Abstract:
This thesis is about laser powder bed fusion (L-PBF) of the nickel-based superalloy: Alloy 247LC. Alloy 247LC is used mainly in gas turbine blades and processing the blades with L-PBF confers performance advantage over the blades manufactured with conventional methods. This is mainly because L-PBF is more suitable, than conventional methods, for manufacturing the complex cooling holes in the blades. The research was motivated by the need for academia and industry to gain knowledge about the processability of the alloy using L-PBF. The knowledge is essential in order to eventually solve the pro
APA, Harvard, Vancouver, ISO, and other styles
4

Lee, Soon Gi. "Quantitative Characterization of Processing-Microstructure-Properties Relationships in Pressure Die-Cast Mg Alloys." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11552.

Full text
Abstract:
The central goal of this research is to quantitatively characterize the relationships between processing, microstructure, and mechanical properties of important high-pressure die-cast (HPDC) Mg-alloys. For this purpose, a new digital image processing technique for automatic detection and segmentation of gas and shrinkage pores in the cast microstructure is developed and it is applied to quantitatively characterize the effects of HPDC process parameters on the size distribution and spatial arrangement of porosity. To get better insights into detailed geometry and distribution of porosity and ot
APA, Harvard, Vancouver, ISO, and other styles
5

Sun, Qianying. "Conducting ceramics based on ZnO co-doped by (Al, Ti, Mg) : microstructure, electronic active defects and electrical properties." Thesis, Le Mans, 2020. http://www.theses.fr/2020LEMA1014.

Full text
Abstract:
Les céramiques conductrices à base de ZnO suscitent un important intérêt pour leurs applications comme varistances, capteurs de gaz, électrodes transparentes, dispositifs piézoélectriques, électro-optiques ou thermoélectriques. Le dopage de ZnO confère aux céramiques formées des propriétés électriques et optiques remarquables caractérisées par une transparence optique modulée, des énergies de liaison élevées pour les excitons, et des conductivités électriques atteignant 0.1 MS.m-1. La grande conductivité de ZnO est intimement liée aux éléments dopants, à la microstructure des céramiques et aux
APA, Harvard, Vancouver, ISO, and other styles
6

Vecchi, Pierpaolo. "Defect analysis in directionally solidified multicrystalline silicon." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21177/.

Full text
Abstract:
This project studies how the microstructure and metallic impurities affect the electrical properties of mc-Si wafers, to improve the efficiency and the production yield of photovoltaic solar cells. Dislocations and impurities in silicon are recombination centres that reduce free carrier lifetime and thus efficiency of solar cells. The quality of the material can be improved by finding optimal growth conditions and a threshold value for the contamination that does not compromise the device efficiency. Two sets of p-type mc-Si wafers located at different heights and lateral positions of two di
APA, Harvard, Vancouver, ISO, and other styles
7

MARINUCCI, GERSON. "Desenvolvimento, fabricacao e analise de falha e fratura de cilindros de fibra de carbono colapsados por pressao interna." reponame:Repositório Institucional do IPEN, 2001. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10913.

Full text
Abstract:
Made available in DSpace on 2014-10-09T12:45:29Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:59:14Z (GMT). No. of bitstreams: 1 07617.pdf: 22753763 bytes, checksum: 9d2426117677d278e6cd36853da9f970 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
APA, Harvard, Vancouver, ISO, and other styles
8

Chauhan, Vinay Singh. "Impact of Nanoscale Defects on Thermal Transport in Materials." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1586440154974469.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sugar, Joshua D. "Mechanisms of microstructure development at metallic-interlayer/ceramic interfaces during liquid-film-assisted bonding." Berkeley, Calif. : Oak Ridge, Tenn. : Lawrence Berkeley National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2003. http://www.osti.gov/servlets/purl/825347-j6A0Su/native/.

Full text
Abstract:
Thesis (M.S.); Submitted to the University of California, Berkeley, CA (US); 1 Dec 2003.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "LBNL--54185" Sugar, Joshua D. USDOE Director. Office of Science. Basic Energy Sciences (US) 12/01/2003. Report is also available in paper and microfiche from NTIS.
APA, Harvard, Vancouver, ISO, and other styles
10

Mokhtari, Hossein. "Transmission electron microscopy of defects and internal fields in GaN structures." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368206.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Microstructure defects"

1

Snyder, R. L. Defect and microstructure analysis by diffraction. Oxford University Press, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

1939-, Doherty R. D., and Cantor B, eds. Stability of microstructure in metallic systems. 2nd ed. Cambridge University Press, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

NATO Advanced Research Workshop on "Patterns, Defects, and Microstructures in Nonequilibrium Systems" (1986 Austin, Tex.). Patterns, defects and microstructures in nonequilibrium systems: Applications in materials science. M. Nijhoff, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Walgraef, D., ed. Patterns, Defects and Microstructures in Nonequilibrium Systems. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3559-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Walgraef, D. Patterns, Defects and Microstructures in Nonequilibrium Systems: Applications in Materials Science. Springer Netherlands, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

International, Workshop on Beam Injection Assessment of Microstructures in Semiconductors (6th 2000 Fukuoka Japan). Beam injection assessment of microstructures in semiconductors: BIAMS 2000 : proceedings of the 6th International Workshop on Beam Injection Assessment of Mictrostructures in Semiconductors held in Fukuoka, Japan, November 12-16, 2000. Scitec Publications, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Nath, Jagan. Iron and Steel Castings Engineering Guide. ASM International, 2022. http://dx.doi.org/10.31399/asm.tb.isceg.9781627083324.

Full text
Abstract:
Iron and Steel Castings Engineering Guide covers the interrelated factors that determine the quality, performance, and cost of castings made from iron and steel. It describes the engineering involved in optimizing component geometries for function and manufacturability. It explains how microstructure influences mechanical properties and how to achieve a target microstructure for product performance through melting, melt treatment, and heat treating. It familiarizes readers with molding and core making processes and how to implement them, along with filling, feeding, and cooling procedures, for
APA, Harvard, Vancouver, ISO, and other styles
8

Hayes, Brian S., and Luther M. Gammon. Optical Microscopy of Fiber-Reinforced Composites. ASM International, 2010. http://dx.doi.org/10.31399/asm.tb.omfrc.9781627083492.

Full text
Abstract:
Optical Microscopy of Fiber-Reinforced Composites discusses the tools and techniques used to examine the microstructure of engineered composites and provides insights that can help improve the quality and performance of parts made from them. It begins with a review of fiber-reinforced polymer-matrix composites and their unique microstructure and morphology. It then explains how to prepare and mount test samples, how to assess lighting, illumination, and contrast needs, and how to use reagents to bring out different phases and areas of interest. It also presents the results of several studies t
APA, Harvard, Vancouver, ISO, and other styles
9

Phillips, Rob. Crystals, Defects and Microstructures: Modeling Across Scales. Cambridge University Press, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Crystals, Defects and Microstructures: Modeling Across Scales. Cambridge University Press, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Microstructure defects"

1

Fonseca, Irene, and Gareth Parry. "Variational Problems for Crystals with Defects." In Microstructure and Phase Transition. Springer New York, 1993. http://dx.doi.org/10.1007/978-1-4613-8360-4_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Yang, Lun, and Kaushik Dayal. "Microstructure and stray electric fields at surface cracks in ferroelectrics." In Micromechanics of Defects in Solids. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4626-8_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Krausz, A. S., and K. Krausz. "The Energy Expression of the Microstructure in Thermally Activated Processes." In Patterns, Defects and Microstructures in Nonequilibrium Systems. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3559-4_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hugo, R., H. Kung, and J. R. Weertman. "Defects, Microstructure and Dislocation Activity in Nanocrystalline Metals." In Ultrafine Grained Materials II. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118804537.ch36.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Vilar, R. "Microstructure Modification: Generation of Crystal Defects and Phase Transformations." In Handbook of Laser Micro- and Nano-Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-69537-2_14-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Vilar, R. "Microstructure Modification: Generation of Crystal Defects and Phase Transformations." In Handbook of Laser Micro- and Nano-Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63647-0_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Le Bris, Claude. "Mathematical Approaches for Contemporary Materials Science: Addressing Defects in the Microstructure." In SEMA SIMAI Springer Series. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86236-7_7.

Full text
Abstract:
AbstractWe overview a series of mathematical works that introduce new modeling and computational approaches for non-periodic materials and media. The approaches consider various types of defects embedded in a periodic structure, which can be either deterministic or random in nature. A portfolio of possible computational techniques addressing the identification of the homogenized properties of the material or the determination of the actual multi-scale solution is presented.
APA, Harvard, Vancouver, ISO, and other styles
8

Tolvanen, Sakari, Robert Pederson, and Uta Klement. "Fatigue Strength Dependence on Microstructure and Defects in Ti-6Al-4V Welds." In Proceedings of the 13th World Conference on Titanium. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119296126.ch47.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Müllner, Peter. "Twin Microstructure, Line Defects and Twnning Stress of Magentic Shape-Memory Alloys." In ICOMAT. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118803592.ch10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cao, Hai Ping. "On some Characteristics of Microstructure and Defects in Die-Cast Magnesium Components." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-968-7.283.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Microstructure defects"

1

Wimmer, Stephanie A., Virginia G. DeGiorgi, Edward P. Gorzkowski, and John Drazin. "Computational Three-Dimensional Microstructure Defect Distributions in Thermal Barrier Coatings." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70405.

Full text
Abstract:
Thermal protection of components such as turbine blades is often done with thermal barrier coatings which are typically ceramic materials. Methods to manufacture ceramic coatings are being developed to create microstructures that optimize thermal protection without degrading mechanical properties of the coating. The coating requires sufficient mechanical properties to remain in place during loads associated with the operation of the component. The work presented in this paper is part of a broader effort that focuses on novel processing techniques. A fabrication method of interest is the inclus
APA, Harvard, Vancouver, ISO, and other styles
2

Lambrecht, Marlies, and Abderrahim Almazouzi. "The Influence Irradiation-Induced Microstructure on the Hardening of RPV Steels." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75109.

Full text
Abstract:
The hardening and embrittlement of reactor pressure vessel steels has been investigated for many years. Nowadays, a consensus is reached assuming a two-component hardening model of copper-enriched clusters and matrix damage. Nevertheless, despite being the subject of significant research efforts, it is still a debatable question, whether a linear or quadratic superposition law is appropriate. The inaccuracy of either choice might be the effect of the existence of different populations of defects, such as loops, decorated interstitial and vacancy clusters, as every defect contributes to the har
APA, Harvard, Vancouver, ISO, and other styles
3

Chen, Xianfeng, Tingfeng Ge, Lisa Tsou, Ming Li, Chorng Niou, and W. T. Kary Chien. "Microstructure Analysis of Wafer Bump Nodule." In ISTFA 2006. ASM International, 2006. http://dx.doi.org/10.31399/asm.cp.istfa2006p0115.

Full text
Abstract:
Abstract The bump nodule growing in electroplating process could be large enough to induce bump to bump short even if the nodule would be weaken by re-flow process. In this work, the microstructure of PbSn eutectic bump and Au bump nodules was analyzed with FIB, SEM and EDS. In PbSn eutectic bump nodule, void defects can be observed with FIB imaging. In Au bump nodule, radiation-like grain structure around the center of Silicon-contained particle can be observed. Based on those analysis results, voids and particles are the source of bump nodule growth. The reason for bump nodule formation is t
APA, Harvard, Vancouver, ISO, and other styles
4

Peng, Wenbo, Xiangbo Zeng, Shiyong Liu, et al. "Study of microstructure and defects in hydrogenated microcrystalline silicon films." In 2009 34th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2009. http://dx.doi.org/10.1109/pvsc.2009.5411197.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Rosenbaum, A., A. Chamanfar, M. Jahazi, and A. Bonakdar. "Microstructure Analysis of Broached Inconel-718 Gas Turbine Disc Fir-Trees." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26972.

Full text
Abstract:
Broaching has long been used for machining of fir-trees in gas turbine discs. The fir-tree arrangement is employed for mechanical attachment of blades to disc. Surface and subsurface microstructure changes induced by broaching affect the fatigue resistance of the disc. Therefore, a reliable and quantitative microstructure mapping of the broached fir-trees is essential for the basic optimization of the broaching process. In this study, the microstructure of the surface and subsurface layers of fir-trees in an industrial gas turbine Inconel-718 disc has been analyzed using optical microscopy and
APA, Harvard, Vancouver, ISO, and other styles
6

Wimmer, Stephanie A., Virginia G. DeGiorgi, and Edward P. Gorzkowski. "Influences of Microstructure Defect Size and Distribution for Performance Optimization of Thermal Barrier Coatings." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65684.

Full text
Abstract:
Thermal barrier coatings are often used to protect a component by reducing temperature excursions. Such coatings are in use on engineered products such as turbine blades. The work presented is part of a broader effort that is focusing on new and novel processing techniques for thermal barrier coatings. Manufacturing methods are being developed to create microstructures that optimize thermal protection while not degrading the mechanical properties of the coating. Sufficient mechanical properties are necessary so the coatings do not fail as a result of loadings associated with the operation of t
APA, Harvard, Vancouver, ISO, and other styles
7

Livings, Richard, Nick Smith, Eric Biedermann, and John Scheibel. "Process Compensated Resonance Testing for Qualifying the Metallurgical Aspects and Manufacturing Defects of Turbine Blades." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15268.

Full text
Abstract:
Abstract The metallurgical aspects of turbomachinery components, both during manufacture and service intervals, are of particular interest because they dictate performance, degradation, and probability of defect formation. As certaining the microstructural state without destructive cut-ups is difficult. Nondestructive methods such as x-ray diffraction or ultrasonic testing can provide some amount of metallurgical characterization but are limited to surface measurements or point-by-point inspections. Ultrasonic Resonance methods such as Process Compensated Resonance Testing (PCRT) can greatly s
APA, Harvard, Vancouver, ISO, and other styles
8

Israel, Rajakumar, and Theresa Atkinson. "Magnetic Resonance Images of Tendon Microstructure." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2574.

Full text
Abstract:
Abstract Tendon and ligament typically produce a weak signal during Magnetic Resonance Imaging (MRI). As a result only gross defects in the tissue could be detected. A method was recently developed to allow more detailed images of tendon structure to be obtained. This new method requires less than 2.5 minutes per scan and is therefore a reasonable method to utilize in a clinical setting to evaluate tendon or ligament injury and healing.
APA, Harvard, Vancouver, ISO, and other styles
9

Rifat, Mustafa, and Saurabh Basu. "Deformation Behavior of Grains Near Defects in Direct Metal Laser Sintered Inconel 718 During Indentation." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8442.

Full text
Abstract:
Abstract The present work utilizes Orientation Imaging Microscopy and Finite Element Modelling to analyse microstructure evolution in grains near defects during plane strain indentation of direct metal laser sintered Inconel 718. Defects are inevitably produced during printing of metals and they degrade the mechanical behaviour of parent components. Understanding microstructure evolution of grains present near defects can help create better predictive models of mechanical behaviour of components resulting from additive manufacturing. In this work, an ex-situ study of microstructure evolution d
APA, Harvard, Vancouver, ISO, and other styles
10

Meng Lei and Zhang Shu. "Simulation of microstructure defects creep on nickel-based superalloys by Genetic Algorithm." In 2009 IEEE International Conference on Intelligent Computing and Intelligent Systems (ICIS 2009). IEEE, 2009. http://dx.doi.org/10.1109/icicisys.2009.5357835.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Microstructure defects"

1

Shapiro, A. B., L. T. Summers, D. J. Eckels, and V. Sahai. Modeling of casting microstructures and defects. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/632822.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Diaz de la Rubia, T., N. Soneda, and Y. Shimomura. Atomic scale modeling of defect production and microstructure evolution in irradiated metals. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/543299.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kane, Joshua James, and William Enoch Windes. Initial Assessment of X-Ray Computer Tomography image analysis for material defect microstructure. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1364233.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dehoff, Ryan R., Niyanth Sridharan, Ralph Dinwiddie, et al. Demonstration of thermal control, microstructure control, defect mitigation and process parameter database generation for Ti-6Al-4V Direct Digital Manufacturing - Understanding defect mitigation and process parameter database generation for direct digital manufacturing. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1237605.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Meyers, B. F. An assessment of the methods for determining defect or failure fractions in HTGR coated particle fuels and their relationship to particle microstructure. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/451966.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!