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Статті в журналах з теми "Cryorolling"

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Автор: Grafiati

Опубліковано: 6 вересня 2023

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1

Hussain, Maruff, P. Nageswara Rao, Dharmendra Singh, and R. Jayaganthan. "Effect of Pre-Ageing on the Age Hardening Response of Cryorolled Al-Mg-Si Alloy." Applied Mechanics and Materials 877 (February 2018): 137–48. http://dx.doi.org/10.4028/www.scientific.net/amm.877.137.

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The present work investigates about the effect of pre-ageing on hardening behavior of Al-Mg-Si alloys processed by cryorolling and its age hardening behavior. Ageing conditions were examined at natural ageing for 2days and pre-ageing at 100 °C, 130°C and 170 °C for 4 hours, 2 hours and 30 minutes respectively. The observations revealed that, the pre-ageing before cryorolling is useful to enhance the dislocation density during cryorolling. However artificial ageing of cryorolled samples is not influenced much with pre-ageing. It is revealed that, maturing at room temperature of CR samples for 30 days has resulted better hardening response during artificial ageing.

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2

Wu, Yuze, Juan Liu, Laxman Bhatta, Charlie Kong, and Hailiang Yu. "Study of Texture Analysis on Asymmetric Cryorolled and Annealed CoCrNi Medium Entropy Alloy." Crystals 10, no. 12 (December 18, 2020): 1154. http://dx.doi.org/10.3390/cryst10121154.

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CoCrNi equiatomic medium entropy alloy sheets were prepared by asymmetric rolling, cryorolling, and asymmetric cryorolling. The asymmetric cryorolled samples exhibited a noteworthy ultra-fine-grain heterogeneous lamella structure. The microstructure and corresponding hardness obtained by different rolling processes and subsequent annealing are compared. It can be seen from the results that the cryogenic deformation temperature had a stronger effect on the mechanical properties of the medium entropy alloys (MEA), compared with the shear strain caused by the asymmetric cryorolling. The effect of annealing temperature on texture components and volume fractions of the specially rolled samples was also analyzed. The result revealed that the recrystallized MEA exhibited similar texture components and the corresponding volume fraction, which indicated that the rolling process had limited influence on the formation of annealing texture. The recrystallized texture after annealing retained the deformation texture and twin related orientations appeared. Asymmetric rolled MEA showed strong random composition than symmetric rolled MEA regardless of rolling temperature. The recrystallized textures of the species obtained by the three rolling processes did not exhibit a significant dependence on the annealing temperature.

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3

Shi, Jin Tao, Long Gang Hou, Cun Qiang Ma, Jin Rong Zuo, Hua Cui, Lin Zhong Zhuang, and Ji Shan Zhang. "Mechanical Properties and Microstructures of 5052 Al Alloy Processed by Asymmetric Cryorolling." Materials Science Forum 850 (March 2016): 823–28. http://dx.doi.org/10.4028/www.scientific.net/msf.850.823.

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Анотація:

Aluminum alloy sheets were asymmetrically rolled at room and cryogenic temperatures by imposing different velocity ratios of 1~1.5 between the upper and bottom rolls. After rolling, the stress-strain curves, microhardness as well as the microstructures of the rolled samples were characterized and analyzed. The experimental results showed that the asymmetric cryorolling could improve the grain refinement and offered (~12%) higher room temperature tensile strength than that processed by symmetrical rolling with velocity ration of 1.0 (~280 MPa). However, at cryogenic temperature, the strength of asymmetrically cryorolling sheet (with velocity ratio of 1.5) was 5.1%, which is less than that processed by symmetrical rolling.

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4

Li, Zhide, Yuze Wu, Zhibao Xie, Charlie Kong, and Hailiang Yu. "Grain Growth Mechanism of Lamellar-Structure High-Purity Nickel via Cold Rolling and Cryorolling during Annealing." Materials 14, no. 14 (July 19, 2021): 4025. http://dx.doi.org/10.3390/ma14144025.

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High-purity (99.999%) nickel with lamellar-structure grains (LG) was obtained by room-temperature rolling and cryorolling in this research, and then annealed at different temperatures (75 °C, 160 °C, and 245 °C). The microstructure was characterized by transmission electron microscopy. The grain growth mechanism during annealing of the LG materials obtained via different processes was studied. Results showed that the LG high-purity nickel obtained by room-temperature rolling had a static discontinuous recrystallization during annealing, whereas that obtained by cryorolling underwent static and continuous recrystallization during annealing, which was caused by the seriously inhibited dislocation recovery in the rolling process under cryogenic conditions, leading to more accumulated deformation energy storage in sheets.

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5

Shi, Yindong, Ming Li, Defeng Guo, Tengyun Ma, Zhibo Zhang, Xiaohong Li, Guosheng Zhang, and Xiangyi Zhang. "Extraordinary Toughening by Cryorolling in Zr." Advanced Engineering Materials 16, no. 2 (October 4, 2013): 167–70. http://dx.doi.org/10.1002/adem.201300153.

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6

Singh, Rahul, Surya Deo Yadav, Biraj Kumar Sahoo, Sandip Ghosh Chowdhury, and Abhishek Kumar. "Phase transformation, Mechanical Properties and Corrosion Behavior of 304L Austenitic Stainless Steel Rolled at Room and Cryo Temperatures." Defence Science Journal 71, no. 03 (May 17, 2021): 383–89. http://dx.doi.org/10.14429/dsj.71.16721.

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Анотація:

The present work investigates the effect of rolling (90% thickness reduction) on phase transformation, mechanical properties, and corrosion behaviour of 304L-austenitic stainless steel through cryorolling and room temperature rolling. The processed steel sheets were characterised through X-ray diffraction (XRD), electron backscattered diffraction (EBSD), and vibrating sample magnetometer (VSM). The analysis of XRD patterns, EBSD scan, and vibrating sample magnetometer results confirmed the transformation of the austenitic phase to the martensitic phase during rolling. Cryorolling resulted in improved tensile strength and microhardness of 1808 MPa and 538 VHN, respectively, as compared to 1566 MPa and 504 VHN for room temperature rolling. The enhancement in properties of cryorolled steel is attributed to its higher dislocation density compared to room temperature rolled steel. The corrosion behaviour was assessed via linear polarisation corrosion tests. Corrosion resistance was found to decrease with increasing rolling reduction in both room temperature rolled and cryorolled specimens.

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7

Wu, Yuze, Shilei Liu, Kaiguang Luo, Charlie Kong, and Hailiang Yu. "Deformation mechanism and mechanical properties of a CoCrFeNi high-entropy alloy via room-temperature rolling, cryorolling, and asymmetric cryorolling." Journal of Alloys and Compounds 960 (October 2023): 170883. http://dx.doi.org/10.1016/j.jallcom.2023.170883.

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8

D’yakonov, G. S., S. V. Zherebtsov, M. V. Klimova, and G. A. Salishchev. "Microstructure evolution of commercial-purity titanium during cryorolling." Physics of Metals and Metallography 116, no. 2 (February 2015): 182–88. http://dx.doi.org/10.1134/s0031918x14090038.

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9

Das, Jayanta. "Evolution of nanostructure in α-brass upon cryorolling". Materials Science and Engineering: A 530 (грудень 2011): 675–79. http://dx.doi.org/10.1016/j.msea.2011.10.002.

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10

Fomenko, L. S., A. V. Rusakova, S. V. Lubenets, and V. A. Moskalenko. "Micromechanical properties of nanocrystalline titanium obtained by cryorolling." Low Temperature Physics 36, no. 7 (July 2010): 645–52. http://dx.doi.org/10.1063/1.3481266.

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11

Singh, Dharmendra, Palukuri Nageswararao, and R. Jayaganthan. "Microstructural Studies of Al 5083 Alloy Deformed through Cryorolling." Advanced Materials Research 585 (November 2012): 376–80. http://dx.doi.org/10.4028/www.scientific.net/amr.585.376.

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In the present work to investigate the effect of rolling at very low temperature on microstructure of Al 5083 alloy, it was subjected to rolling at room temperature and immediate quenching at liquid nitrogen temperature up to different strain levels. The microstructure of deformed material has been studied using Electron back scattered diffraction (EBSD) and Transmission electron microscopy (TEM) techniques. A homogeneous ultrafine grained microstructure of an average size of 300 nm with well defined grain boundaries could be achieved with an effective rolling strain of only 2.3 followed by short annealing at 300 °C for 6 min. The effect of second phase particles on grain refinement at different stains is discussed. It was observed that increased dislocation density due to effective suppression of dynamic recovery by immediate quenching in liquid nitrogen temperature after each successive rolling passes leads to increased stored energy which further leads to formation of homogeneous ultrafine grained microstructure after short annealing subsequently.

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12

Satish, D. Raja, Fitsum Feyissa, and D. Ravi Kumar. "Cryorolling and warm forming of AA6061 aluminum alloy sheets." Materials and Manufacturing Processes 32, no. 12 (April 12, 2017): 1345–52. http://dx.doi.org/10.1080/10426914.2017.1317352.

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13

Song, Xiao, Jinru Luo, Jishan Zhang, Linzhong Zhuang, Hua Cui, and Yi Qiao. "Twinning Behavior of Commercial-Purity Titanium Subjected to Cryorolling." JOM 71, no. 11 (April 8, 2019): 4071–78. http://dx.doi.org/10.1007/s11837-019-03463-2.

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14

Zherebtsov, S. V., G. S. Dyakonov, A. A. Salem, V. I. Sokolenko, G. A. Salishchev, and S. L. Semiatin. "Formation of nanostructures in commercial-purity titanium via cryorolling." Acta Materialia 61, no. 4 (February 2013): 1167–78. http://dx.doi.org/10.1016/j.actamat.2012.10.026.

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15

Wang, Lin, Juan Liu, Charlie Kong, Alexander Pesin, Alexander P. Zhilyaev, and Hailiang Yu. "Sandwich‐Like Cu/Al/Cu Composites Fabricated by Cryorolling." Advanced Engineering Materials 22, no. 10 (June 3, 2020): 2000122. http://dx.doi.org/10.1002/adem.202000122.

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16

Avtokratova, Elena, Stanislav Krymskiy, Anastasia Mikhaylovskaya, Oleg Sitdikov, and Michael Markushev. "Nanostructuring of 2xxx Aluminum Alloy under Cryorolling to High Strains." Materials Science Forum 838-839 (January 2016): 367–72. http://dx.doi.org/10.4028/www.scientific.net/msf.838-839.367.

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Анотація:

The structure transformations in the D16 (2024) aluminum alloy caused by isothermal rolling with effective strain up to e ~3.5 at a temperature of liquid nitrogen were investigated. It is shown that under straining to e ~2.0 the dislocation structure containing cells of the nanometric size is formed. At higher strains the dynamic recovery and continuous recrystallization result in the development of a mixed nano(sub) grain structure, which after e ~3.5 is characterized by the size and volume fraction of grains ~ 150 nm and 40-45%, respectively. Nature of the alloy structure transformations is discussed.

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17

Wangkasem, P., and S. Rojananan. "Mechanical and Electrical Properties of Aluminium Alloy by Cryorolling Process." International Journal of Advanced Culture Technology 3, no. 1 (June 30, 2015): 46–51. http://dx.doi.org/10.17703/ijact.2015.3.1.46.

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18

Panigrahi, Sushanta Kumar, R. Jayaganthan, and V. Chawla. "Effect of cryorolling on microstructure of Al–Mg–Si alloy." Materials Letters 62, no. 17-18 (June 2008): 2626–29. http://dx.doi.org/10.1016/j.matlet.2008.01.003.

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19

Blessto, B., K. Sivaprasad, V. Muthupandi, and M. Arumugam. "DSC analysis on AA2219 plates processed by cryorolling and coldrolling." Materials Research Express 6, no. 10 (September 11, 2019): 1065c9. http://dx.doi.org/10.1088/2053-1591/ab4040.

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20

ABBASI-BAHARANCHI, M., F. KARIMZADEH, and M. H. ENAYATI. "Thermal stability evaluation of nanostructured Al6061 alloy produced by cryorolling." Transactions of Nonferrous Metals Society of China 27, no. 4 (April 2017): 754–62. http://dx.doi.org/10.1016/s1003-6326(17)60086-4.

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21

Krymskiy, S. V., E. V. Avtokratova, O. Sh Sitdikov, and M. V. Markushev. "Intergranular corrosion of D16 aluminum alloy subjected to cryorolling and aging." Letters on Materials 2, no. 4 (2012): 227–30. http://dx.doi.org/10.22226/2410-3535-2012-4-227-230.

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22

Jayaganthan, R., and Sushanta Kumar Panigrahi. "Effect of Cryorolling Strain on Precipitation Kinetics of Al 7075 Alloy." Materials Science Forum 584-586 (June 2008): 911–16. http://dx.doi.org/10.4028/www.scientific.net/msf.584-586.911.

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The effect of rolling strain on precipitation kinetics of Al 7075 alloy processed at liquid nitrogen temperature has been investigated in the present work. The Al 7075 alloy plates were solutionized and cryorolled with thickness reduction of 35% and 90%. The microstructural characterizations of the bulk and cryorolled Al alloy samples were carried out by electron backscatter diffraction analysis (EBSD) and transmission electron microscopy (TEM), respectively. The cryorolled Al alloys upon 90% thickness reduction exhibit ultrafine grained microstructure. The DSC results of cryorolled Al 7075 alloys obtained at different heating rates are used to calculate activation energies for the evolution of precipitates. The influence of different reduction rates on activation energy of precipitate formation in the cryorolled Al 7075 alloys was analyzed. The present study has shown that an ultrafine-grained Al 7075 alloy exhibits a higher driving force for the precipitation formation when compared to that of its bulk Al alloys.

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23

Moskalenko, V. A., V. I. Betekhtin, B. K. Kardashev, A. G. Kadomtsev, A. R. Smirnov, R. V. Smolyanets, and M. V. Narykova. "Mechanical properties and structural features of nanocrystalline titanium produced by cryorolling." Physics of the Solid State 56, no. 8 (August 2014): 1590–96. http://dx.doi.org/10.1134/s1063783414080204.

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24

Laxman Mani Kanta, P., V. C. Srivastava, K. Venkateswarlu, Sharma Paswan, B. Mahato, Goutam Das, K. Sivaprasad, and K. Gopala Krishna. "Corrosion behavior of ultrafine-grained AA2024 aluminum alloy produced by cryorolling." International Journal of Minerals, Metallurgy, and Materials 24, no. 11 (November 2017): 1293–305. http://dx.doi.org/10.1007/s12613-017-1522-2.

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25

Shanmugasundaram, T., B. S. Murty, and V. Subramanya Sarma. "Development of ultrafine grained high strength Al–Cu alloy by cryorolling." Scripta Materialia 54, no. 12 (June 2006): 2013–17. http://dx.doi.org/10.1016/j.scriptamat.2006.03.012.

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26

Yu, Hailiang, Hui Wang, Cheng Lu, A. Kiet Tieu, Huijun Li, Ajit Godbole, Xiong Liu, Charlie Kong, and Xing Zhao. "Microstructure evolution of accumulative roll bonding processed pure aluminum during cryorolling." Journal of Materials Research 31, no. 6 (March 3, 2016): 797–805. http://dx.doi.org/10.1557/jmr.2016.70.

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27

Markushev, Michael, Irshat Valeev, Elena Avtokratova, Rafis Ilyasov, Aygul Valeeva, Stanislav Krimsky, and Oleg Sitdikov. "Effect of strain of cryorolling on structure and strength of nickel." Letters on Materials 12, no. 4s (December 2022): 409–13. http://dx.doi.org/10.22226/2410-3535-2022-4-409-413.

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28

TONG, Yun-xiang, Si-yuan LI, Dian-tao ZHANG, Li LI, and Yu-feng ZHENG. "High strength and high electrical conductivity CuMg alloy prepared by cryorolling." Transactions of Nonferrous Metals Society of China 29, no. 3 (March 2019): 595–600. http://dx.doi.org/10.1016/s1003-6326(19)64968-x.

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29

Das, P., R. Jayaganthan, T. Chowdhury, and Inderdeep Singh. "Improvement of Fracture Toughness (K_1c) of 7075 Al Alloy by Cryorolling Process." Materials Science Forum 683 (May 2011): 81–94. http://dx.doi.org/10.4028/www.scientific.net/msf.683.81.

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Анотація:

The effects of cryorolling (Rolling at liquid nitrogen temperature) and optimum heat treatment (short annealing + ageing) on fracture toughness of 7075 Al alloy are reported in the present work. The Al 7075 alloy was rolled for different thickness reductions (40% and 70%) at cryogenic temperature and its mechanical, fracture toughness properties were studied. The microstructural characterization of the alloy was carried out by using Optical microscopy and Field emission scanning electron microscopy (FESEM). The cryo-rolled (CR) Al alloy after 70% thickness reduction exhibits ultrafine grain structure as observed from its FESEM micrographs. It is observed that the yield strength and fracture toughness of the CR material with 70% thickness reduction have increased by 108% and 73% respectively, compared to the starting material. The CR 7075 Al alloy shows improved fracture toughness and tensile strength due to high dislocation density, grain refinement, and ultrafine-grain (UFG) formation by multiple cryorolling passes. The CR samples were subjected to short annealing for 5 min at 190 0C, 170 0C and 150 0C followed by ageing at 160 0C, 140 0C and 120 0C for both 40% and 70% reduced samples. The combined effect of short annealing and ageing improves the fracture toughness, tensile strength, and ductility of cryorolled samples, which is due to precipitation hardening and subgrain coarsening mechanism respectively. The scanning electron microscopy (SEM) fractographs of the Al 7075 alloy samples reveals that starting bulk Al alloy specimens is fractured in a total ductile manner, consisting of well-developed dimples over the entire surface and dimple size got decreased continuously for cryorolled specimens at different percentage of thickness reduction (40% and 70%) as observed in the present work.

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30

MAHMUDI, REZA, H. MHJOUBI, and P. MEHRARAM. "SUPERPLASTIC INDENTATION CREEP OF FINE-GRAINED Sn-1% Bi ALLOY." International Journal of Modern Physics B 22, no. 18n19 (July 30, 2008): 2823–32. http://dx.doi.org/10.1142/s021797920804764x.

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Анотація:

Creep and superplasticity of the fine-grained Sn -1wt.% Bi alloy, processed by conventional rolling (CNR), cryorolling (CRR) and equal channel angular pressing (ECAP) routes, were investigated by indentation testing at room temperature (T > 0.6T m ). Based on the steady-state power law creep relationship, the stress exponents of 4.1, 2.8 and 2.5 were obtained for the CNR, CRR and ECAP routes, respectively. The corresponding strain rate sensitivity (SRS) indices of 0.24, 0.36 and 0.40, corresponding respectively to the grain sizes of 2.8, 2.1 and 1.2 μm, indicate that the materials processed by ECAP and CRR exhibit superplastic deformation behavior for which, grain boundary sliding is the possible creep mechanism.

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31

Kumar, J. Suresh, M. Siva, N. Suneel Kumar, CH V. V. S. S. R. Krishna Murthy, and V. V. Ravi Kumar. "Forming of AA2xxx and AA7xxx Sheet Alloys and their Studies on Microstructural and Mechanical Properties of Cold and Cryo Rolled Aluminum Alloys." Materials Science Forum 969 (August 2019): 546–51. http://dx.doi.org/10.4028/www.scientific.net/msf.969.546.

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High strength aluminum alloys will enhancing mechanical properties always plays a major role in controlling microstructure of cast and processed alloy. The desire for more efficient aircraft materials has fueled research of aluminum AA-2xxx and AA7xxx alloys. In these alloys were rolled at cold rolling and at cryorolling to 80 % thickness reductions and an attempt was made to evaluate the optical-microstructural variation and the variation in tensile properties of these aluminum alloys. Cryorolled alloy also exhibited better hardness and strength compared to cold alloy due to suppressed thermal recovery. Coldrolled alloy showed more necking percentage compared to cryorolled for rolling reductions of 80% and more formability was observed.

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32

Luo, Kaiguang, Yuze Wu, Yun Zhang, Gang Lei, and Hailiang Yu. "Study on Mechanical Properties and Microstructure of FeCoCrNi/Al Composites via Cryorolling." Metals 12, no. 4 (April 4, 2022): 625. http://dx.doi.org/10.3390/met12040625.

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Aluminum matrix composites (AMCs) reinforced by 1.5 and 3 wt% FeCoCrNi high-entropy alloy particles (HEAp) were obtained by a stir casting process. The AMCs strip was further prepared by room temperature rolling (RTR, 298 K) and cryorolling (CR, 77 K). The mechanical properties of the AMCs produced by RTR and CR were studied. The effect of a microstructure on mechanical properties of composites was analyzed by scanning electron microscopy (SEM). The results show that CR can greatly improve the mechanical properties of the HEAp/AMCs. Under 30% rolling reduction, the ultimate tensile strength (UTS) of the RTR 1.5 wt% HEAp/AMCs was 120.3 MPa, but it increased to 139.7 MPa in CR composites. Due to the volume shrinkage effect, the bonding ability of CR HEAp/AMCs reinforcement with Al matrix was stronger, exhibiting higher mechanical properties.

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33

Quan, Li Wei, Wen Ning Mu, Lei Kang, Xiao Ma, Peng Han, and Ming Li Huang. "The Effect of Cryorolling on the Microstructure of Al-Cu-Mg Alloy." Materials Science Forum 877 (November 2016): 188–93. http://dx.doi.org/10.4028/www.scientific.net/msf.877.188.

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Анотація:

A precipitation hardenable Al-Cu-Mg alloy was cryorolled with liquid nitrogen followed solution treatment and then aged at 170 ̊C for different time. The microstructure was characterized by optical microscopy (OM) and transmission electron microscopy (TEM). Hardness and tensile strength were also tested. The dislocation loops in the cryorolled alloy are more than the room temperature rolled alloy. Meanwhile the hardness, yield strength and tensile strength are larger than the room temperature rolled alloy.

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34

WU, Yu-ze, Zhao-yang ZHANG, Juan LIU, Charlie KONG, Yu WANG, Puneet TANDON, Alexander PESIN, and Hai-liang YU. "Preparation of high-mechanical-property medium-entropy CrCoNi alloy by asymmetric cryorolling." Transactions of Nonferrous Metals Society of China 32, no. 5 (May 2022): 1559–74. http://dx.doi.org/10.1016/s1003-6326(22)65893-x.

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35

Wang, Lin, Delin Tang, Charlie Kong, and Hailiang Yu. "Crack-free Cu9Ni6Sn strips via twin-roll casting and subsequent asymmetric cryorolling." Materialia 21 (March 2022): 101283. http://dx.doi.org/10.1016/j.mtla.2021.101283.

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36

Zheng, Jianjun, Changsheng Li, Shuai He, Biao Ma, and Yanlei Song. "Deformation twin and martensite in the Fe–36%Ni alloy during cryorolling." Materials Science and Technology 33, no. 14 (April 18, 2017): 1681–87. http://dx.doi.org/10.1080/02670836.2017.1313362.

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37

Sharif, Nurulakmal Mohd, and Wan Asilah Wan Azalan. "Cryorolling of SAC305 solder : Microstructure analysis and shear strength of solder joint." IOP Conference Series: Materials Science and Engineering 957 (November 25, 2020): 012056. http://dx.doi.org/10.1088/1757-899x/957/1/012056.

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38

Naga Krishna, N., M. Ashfaq, P. Susila, K. Sivaprasad, and K. Venkateswarlu. "Mechanical anisotropy and microstructural changes during cryorolling of Al–Mg–Si alloy." Materials Characterization 107 (September 2015): 302–8. http://dx.doi.org/10.1016/j.matchar.2015.07.033.

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39

Sivaprasad, K., B. Blessto, V. Muthupandi, and M. Arumugam. "Achieving Superior Strength and Ductility Combination Through Cryorolling in 2219 Aluminum Alloy." Journal of Materials Engineering and Performance 29, no. 10 (September 23, 2020): 6809–17. http://dx.doi.org/10.1007/s11665-020-05124-x.

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40

Gopala Krishna, K., Nidhi Singh, K. Venkateswarlu, and K. C. Hari Kumar. "Tensile Behavior of Ultrafine-Grained Al-4Zn-2Mg Alloy Produced by Cryorolling." Journal of Materials Engineering and Performance 20, no. 9 (February 1, 2011): 1569–74. http://dx.doi.org/10.1007/s11665-011-9843-1.

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41

Trivedi, Pramanshu, Sunkulp Goel, Snehasish Das, R. Jayaganthan, Debrupa Lahiri, and P. Roy. "Biocompatibility of ultrafine grained zircaloy-2 produced by cryorolling for medical applications." Materials Science and Engineering: C 46 (January 2015): 309–15. http://dx.doi.org/10.1016/j.msec.2014.10.056.

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42

Yadollahpour, M., H. Hosseini-Toudeshky, and F. Karimzadeh. "Effect of Cryorolling and Aging on Fatigue Behavior of Ultrafine-grained Al6061." JOM 68, no. 5 (November 4, 2015): 1446–55. http://dx.doi.org/10.1007/s11837-015-1702-3.

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43

Gao, Haitao, Shilei Liu, Lingling Song, Charlie Kong, and Hailiang Yu. "Enhanced strength-ductility synergy in heterostructured copper/brass laminates via introducing cryorolling." Materials Science and Engineering: A 878 (June 2023): 145239. http://dx.doi.org/10.1016/j.msea.2023.145239.

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44

Yu, Hailiang, Kiet Tieu, Cheng Lu, Yanshan Lou, Xianghua Liu, Ajit Godbole, and Charlie Kong. "Tensile fracture of ultrafine grained aluminum 6061 sheets by asymmetric cryorolling for microforming." International Journal of Damage Mechanics 23, no. 8 (May 29, 2014): 1077–95. http://dx.doi.org/10.1177/1056789514538083.

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Анотація:

The size effect on the mechanism of fracture in ultrafine grained sheets is an unsolved problem in microforming. This paper describes a tensile test carried out to study the fracture behavior and the shear fracture angles of both rolled and aged ultrafine grained aluminum 6061 sheets produced by asymmetric cryorolling. A scanning electron microscope was used to observe the fracture surface. The finite element method was used to simulate the tensile test using the uncoupled Cockcroft–Latham and Tresca criteria and the coupled Gurson–Tvergaard–Needleman damage criterion. It was found that the shear fracture angle decreases gradually from 90° to 64° with an increasing number of passes. The results of simulations using the Gurson–Tvergaard–Needleman criterion show trends similar to the experimental ones. The paper also presents a discussion on the fracture mechanism and the size effect during the tensile test.

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45

Sayed Ahmad, Syarifah M. Noraini, Zuhailawati Hussain, and Anasyida Abu Seman. "The Effect of Dipping Time of Liquid Nitrogen on Mechanical Properties of Al Alloy 5083 via Cryorolling." Materials Science Forum 888 (March 2017): 409–12. http://dx.doi.org/10.4028/www.scientific.net/msf.888.409.

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Анотація:

Cryorolling is indeed a very suitable approach in producing a good Al alloy of Al 5083 with exceptionally strong and hard properties. This new Severe Plastic Deformation (SPD) methods can bring out the utmost of strength in Al alloy compare with cold rolling. This paper hence discussed the effect of dipping duration of Al alloy in liquid nitrogen prior to rolling process to its improved mechanical properties such as hardness and tensile strength. The result showed that the hardness increased with increasing dipping time until 60 minutes for low temperature pre-anneal and 30 minutes for high temperature pre-anneal and later dropped. The tensile strength of cryorolled sample also showed some improvement for about 5-8% compared with normal cold rolling.

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46

DU, Qing-lin, Chang LI, Xiao-hui CUI, Charlie KONG, and Hai-liang YU. "Fabrication of ultrafine-grained AA1060 sheets via accumulative roll bonding with subsequent cryorolling." Transactions of Nonferrous Metals Society of China 31, no. 11 (November 2021): 3370–79. http://dx.doi.org/10.1016/s1003-6326(21)65735-7.

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47

Goel, Sunkulp, Nachiket Keskar, R. Jayaganthan, I. V. Singh, D. Srivastava, G. K. Dey, and N. Saibaba. "Mechanical behaviour and microstructural characterizations of ultrafine grained Zircaloy-2 processed by cryorolling." Materials Science and Engineering: A 603 (May 2014): 23–29. http://dx.doi.org/10.1016/j.msea.2014.02.025.

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48

Rao, P. Nageswara, B. Viswanadh, and R. Jayaganthan. "Effect of cryorolling and warm rolling on precipitation evolution in Al 6061 alloy." Materials Science and Engineering: A 606 (June 2014): 1–10. http://dx.doi.org/10.1016/j.msea.2014.03.031.

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49

Magalhães, Danielle Cristina Camilo, Andrea Madeira Kliauga, Maurizio Ferrante, and Vitor Luiz Sordi. "Asymmetric cryorolling of AA6061 Al alloy: Strain distribution, texture and age hardening behavior." Materials Science and Engineering: A 736 (October 2018): 53–60. http://dx.doi.org/10.1016/j.msea.2018.08.075.

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50

Gopala Krishna, K., K. Sivaprasad, T. S. N. Sankara Narayanan, and K. C. Hari Kumar. "Localized corrosion of an ultrafine grained Al–4Zn–2Mg alloy produced by cryorolling." Corrosion Science 60 (July 2012): 82–89. http://dx.doi.org/10.1016/j.corsci.2012.04.009.

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