Hot processing behavior of Cu-9Ni-6Sn-0.04Cr alloy based on Murty's instability criterion

doi:10.13251/j.issn.0254-6051.2023.10.016

Abstract

Abstract: Hot compression behavior of a new Cu-based alloy Cu-9Ni-6Sn-0.04Cr was investigated through single pass compressing tests on a MMS-200 thermal mechanical simulator in the temperature range of 750-900 ℃ and the strain rate of 0.01-10 s^-1, and the hot processing maps of the alloy were analyzed by using the Prasad's and Murty's instability criterion. The results show that the Murty's instability criterion is more suitable to establish the hot processing maps for the Cu-9Ni-6Sn-0.04Cr Cu-based alloy, of which the instability domain is 750-900 ℃, 0.1-10 s^-1, being consistent with the instability distribution of the alloy. Besides, the appearance of mixed grains makes instability occur in the high strain rate domain, while chain-like structure make instability happen in the low temperature and low strain rate domain for the Cu-9Ni-6Sn-0.04Cr Cu-based alloy.

Key words: copper alloy, Cu-9Ni-6Sn-0.04Cr alloy, hot deformation behavior, hot processing map, instability behavior

CLC Number:

TG146.11

Song Tao, Xu Siyang, Li Yinglong, Ding Hua. Hot processing behavior of Cu-9Ni-6Sn-0.04Cr alloy based on Murty's instability criterion[J]. Heat Treatment of Metals, 2023, 48(10): 116-122.

References

[1]汪明朴, 贾延琳, 李周. 先进高强导电铜合金[M]. 长沙: 中南大学出版社, 2015.
[2]吴语, 杨胜利. 高弹性合金Cu-Ni-Sn的研究与发展[J]. 上海有色金属, 2014, 35(1): 38-44.
Wu Yu, Yang Shengli. Research and development prospect of high-elastic Cu-Ni-Sn alloy[J]. Shanghai Nonferrous Metals, 2014, 35(1): 38-44.
[3]许斯洋, 李英龙, 蔡志辉, 等. 高强高弹铜合金研究及发展趋势[J]. 材料与冶金学报, 2018, 17(4): 300-305, 316.
Xu Siyang, Li Yinglong, Cai Zhihui, et al. The current situation and prospect for high-strength and high-elasticity copper alloy[J]. Journal of Materials and Metallurgy, 2018, 17(4): 300-305, 316.
[4]Guo Z, Jie J, Liu S, et al. Effect of V addition on microstructures and mechanical properties of Cu-15Ni-8Sn alloy[J]. Materials Science and Engineering A, 2019, 748: 85-94.
[5]Shi Yufan, Guo Chengjun, Chen Jinshui, et al. Recrystallization behavior and mechanical properties of a Cu-15Ni-8Sn(P) alloy during prior deformation and aging treatment[J]. Materials Science and Engineering A, 2021, 826: 142025.
[6]Xu S, Li Y, Zhang M, et al. The effects of Nb additions on the microstructure evolution in Cu-9Ni-6Sn alloy[J]. Intermetallics, 2022, 143: 107497.
[7]赵超. 高强韧Cu-15Ni-8Sn合金的制备及相关基础研究[D]. 广州: 华南理工大学, 2020.
[8]方善锋, 汪明朴, 程建奕, 等. 高强高导Cu-Cr-Zr系合金材料的研究进展[J]. 材料导报, 2003, 17(9): 21-24.
Fang Shanfeng, Wang Mingpu, Cheng Jianyi, et al. Recent developments in high strength and high conductivity Cu-Cr-Zr system alloys[J]. Materials Review, 2003, 17(9): 21-24.
[9]雷前, 杨一海, 肖柱, 等. 高强高导高耐热铜合金的研究进展与展望[J]. 材料导报, 2021, 35(15): 15153-15161.
Lei Qian, Yang Yihai, Xiao Zhu, et al. Research progress and prospect on high strength, high conductivity, and high heat resistance copper alloys[J]. Materials Reports, 2021, 35(15): 15153-15161.
[10]刘德罡, 胡小龙, 蔡明晖, 等. Fe-11Mn-10Al-0. 9C低密度钢的变形抗力模型和热加工图[J]. 材料与冶金学报, 2018, 17(4): 263-268, 275.
Liu Degang, Hu Xiaolong, Cai Minghui, et al. Deformation resistance model and processing map of Fe-11Mn-10Al-0.9C low density steel[J]. Journal of Materials and Metallurgy, 2018, 17(4): 263-268, 275.
[11]Prasad Y. Processing maps: A status report[J]. Journal of Materials Engineering and Performance, 2003, 12(6): 638-645.
[12]Gegel H L, Malas J C, Doraivelu S M, et al. Modelling Techniques Used in Forging Process Design in: Metals Handbook, Forming and Forging[M]. OH: ASM International, 1988.
[13]Gegel H L. Synthesis of Atomistics and Continuum Modeling to Describe Microstructure: Computer Simulation in Material Science[M]. OH: ASM International, 1987.
[14]Malas J, Seetharaman V. Using material behavior models to develop process control strategies[J]. JOM, 1992, 44(6): 8-13.
[15]Murty S, Rao B. On the development of instability criteria during hot working with reference to IN718[J]. Materials Science and Engineering A, 1998, 254(1/2): 76-82.
[16]Semiatin S L, Jonas J J. Formability and Workability of Metals: Plastic Instability and Flow Localization[M]. Ohio: American Society for Metals, 1984.
[17]符君, 于雪梅, 刘超, 等. TC21合金基于不同失稳判据的热加工图研究[J]. 航空制造技术, 2019, 62(19): 65-74.
Fu Jun, Yu Xuemei, Liu Chao, et al. Study on processing map under different instability criterion for TC21 alloy[J]. Aeronautical Manufacturing Technology, 2019, 62(19): 65-74.
[18]Han Y, Li C, Ren J, et al. Characterization of hot deformation behavior and processing map of as-cast H13 hot work die steel[J]. Metals and Materials International, 2021, 27: 3574-3589.
[19]周舸. 镍基高温合金高温变形行为及变形机理研究[D]. 沈阳: 东北大学, 2013.
[20]马昕, 许斯洋, 周舸, 等. Ni₆₀Ti₄₀形状记忆合金的热变形行为[J]. 中国冶金, 2022, 32(9): 26-36.
Ma Xin, Xu Siyang, Zhou Ge, et al. Thermal deformation behavior of Ni₆₀Ti₄₀ shape memory alloy[J]. China Metallurgy, 2022, 32(9): 26-36.
[21]Murty S V S N, Rao B N, Kashyap B P. On the hot working characteristics of 6061Al-SiC and 6061-Al₂O₃ particulate reinforced metal matrix composites[J]. Composites Science and Technology, 2003, 63(1): 119-135.