Study on Hot Deformation Behavior and Processing Maps of Cu-0.35Cr-0.15Zr Alloy

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Abstract:

The hot deformation behavior of Cu-0.35Cr-0.15Zr (wt.%) alloy was investigated by hot compression tests using a Gleeble-1500D thermal simulator system. The tests were performed under the conditions of 700°С- 820°С temperature and 0.01-10s-1strain rate. The results show that the flow behavior of the studied alloy could be described by the hyperbolic sine constitutive equation, and an active energy of 597.53 kJ/mol was calculated. The processing maps were obtained and analyzed according to the dynamic materials model. The optimum processing parameters of hot deformation of this alloy in the range of this experiment can be attained by the maps. The hot deformation temperature was 800-820°C and the strain rate was 0.01-0.1s-1.The instability zones of flow behavior can also be recognized by the maps.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

1456-1464

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Online since:

February 2011

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[1] Gronostajski Z J. Model describing the characteristic value of flow stress and strain of brass M63 and aluminum bronze BA93[J]. Journal of Materials Processing Technology,1998 78(1-3): 84-89.

DOI: 10.1016/s0924-0136(97)00467-6

Google Scholar

[2] Imbert C A C. Mcqueen H J. Peak strength, strain hardening and dynamic restoration of A2and M2 tool steels in hot deformation[J] Materials Science and Engineer A, 2001, A313(1-2): 88-103.

DOI: 10.1016/s0921-5093(01)00976-5

Google Scholar

[3] Castro-Femandez F R, Sellars C M, Whiteman J A. Change of Flow Stress and Microstructure during Hot Deformation of Al-1Mg-1Mn[J], Materials Science and Technology, 1990, 6(5): 453-460.

DOI: 10.1179/mst.1990.6.5.453

Google Scholar

[4] Shi H, Mclaren J, Sellers C M, Shahani R, Bolingbroke R. Constitutive Equations for High Temperature Flow Stress of Aluminum Alloys. Materials Science and Technology, 1997, 13(3): 210 -216.

DOI: 10.1179/mst.1997.13.3.210

Google Scholar

[5] Davenpot S B, Silk N J, Sparks C N, et al. Development of Constitutive Equations for Modeling of Hot Rolling[J]. Materials Science and Technology, 2000, 16(5): 539-546.

DOI: 10.1179/026708300101508045

Google Scholar

[6] Bozzini B, Cerri E. Numerical reliability of hot working processing maps[J], Materials Science and Engineer A 2002 A328(1-2): 334-347.

DOI: 10.1016/s0921-5093(01)01686-0

Google Scholar

[7] WANG Rui-ning, XI Zheng-ping, ZHAO Yong-qing, et al., Hot deformation and processing maps of Zr-4 alloy[J], Rare Metal Materials and Engineering, 2007,36(5): 808-812(in Chinese).

Google Scholar

[8] HUANG Guang-sheng, HUANG Guang-jie, WANG Ling-yun et al., Processing maps for Hot working of as extruded AZ31B magnesium alloy[J], Trans. Nonferrous Met. Soc. China, 2005, 15(4): 813-817.

Google Scholar

[9] ZHANG Hong-gang, ZHANG Hui, LIU Wan-rong et al., Rheologic stress of C194 copper alloy under hot compression deformation, Natural Science Journal of Xiangtan Univeristy, 2003, 25(3): 82-86(in Chinese).

Google Scholar

[10] HUANG Guang-sheng, WANG Ling-yun, CHEN Hua et al., Hot deformation and processing maps of 2168 aluminum alloy[J], The Chinese Journal of Nonferrous Metals, 2005, 15(5): 763-767 (in Chinese).

Google Scholar

[11] Cerri E, Spigarelli S, Evangelista S E, et al., Hot deformation and processing maps of a particulate-reinforced 606l+20 %Al2O3 composite[J]. Materials Science and Engineer A, 2002, A324(1-2): 157-161.

DOI: 10.1016/s0921-5093(01)01299-0

Google Scholar

[12] M A Morris, D G Morris, U D Kulkarni. Microstructure and properties of Cu-Cr-Zr alloy[J]. Journal of Nuclear Materials. 2001, 299: 91-100.

DOI: 10.1016/s0022-3115(01)00691-2

Google Scholar

[13] QI Wei-xiao, TU Jiang-Ping, LIU Fu et al. Microstructure and tribological behavior of a peak aged Cu-Cr-Zr[J]. Materials Science and Engineering. 2003, A343: 89-96.

DOI: 10.1016/s0921-5093(02)00387-8

Google Scholar

[14] A Vinogradov, V Patlan, Y Suzuki, et al. Structure and properties of ultra-fine grain Cu-Cr-Zr Alloy[J]. Acta Materialia. 2002, 50: 1639-1651.

DOI: 10.1016/s1359-6454(01)00437-2

Google Scholar

[15] K J Zeng, M Hamalainen. A theoretical study of the phase equilibia in the Cu-Cr-Zr system[J]. Journal of alloys and Compounds. 1995, 220: 53-61.

DOI: 10.1016/0925-8388(94)06029-0

Google Scholar

[16] N Y Tang, D M Taplin, G L Dunlop. Precipitation and aging in high-conductivity Cu-Cr alloys with additions of zirconium and magnesium[J]. Mater. Sci. and Tech. 1985, (1): 270-275.

DOI: 10.1179/mst.1985.1.4.270

Google Scholar