CuNiSiCrRE合金热处理工艺的优化
Optimization of Heat Treatment of CuNiSiCrRE Alloy
摘 要
采用布氏硬度计、涡流导电仪和扫描电子显微镜等研究了固溶温度、时效及时效前冷变形量对CuNiSiCrRE合金显微组织和性能的影响, 在此基础上确定了其最佳热处理工艺。结果表明: 该合金的最佳热处理工艺为900 ℃×1.5 h固溶水冷＋40%的冷变形＋480 ℃×2 h时效空冷, 其相应的硬度为229 HB, 电导率为45.6%IACS, 抗拉强度为674 MPa, 屈服强度为641 MPa, 伸长率为16%, 软化温度为540 ℃, 拉伸断口为韧性断裂。
硬度
时效
电导率
CuNiSiCrRE alloy
hardness
aging
electrical conductivity
Abstract
By means of Brinell hardness tester and eddy-current conductometer as well as SEM, the effects of solid solution temperature, aging and cold deforming before aging on microstructure and properties of the CuNiSiCrRE alloy were studied, then the optimum heat treatment was determined. The results show that the optimized heat treatment process was solution at 900 ℃ for 1.5 h with cooling in water, 40% cold-working and aging at 480 ℃ for 2 h with cooling in air. The hardness was 229 HB, electrical conductivity was 45.6%IACS, tensile strength reached 674 MPa, yield strength was 641 MPa, elongation was 16% and softening temperature was 540 ℃. Tensile fracture was ductile fracture.
中图分类号 TG166.2
所属栏目
基金项目
收稿日期 2010/2/24
修改稿日期 2010/12/25
网络出版日期
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备注郭宇航(1978-), 男, 黑龙江大庆人, 实验师, 硕士。
引用该论文: GUO Yu-hang,ZHI Hai-jun,LV Xiu-fen,SHI Xue-li. Optimization of Heat Treatment of CuNiSiCrRE Alloy[J]. Materials for mechancial engineering, 2011, 35(3): 79～82
郭宇航,支海军,吕秀芬,师学礼. CuNiSiCrRE合金热处理工艺的优化[J]. 机械工程材料, 2011, 35(3): 79～82
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参考文献
【1】《热处理手册》编委组.热处理手册,第一分册[M].北京:机械工业出版社,2001:446-454.
【2】WITUSIEWICZ V T, ARPSHOFEN I, SEIFERT H J,et al. Enthalpy of mixing of liquid and under cooled liquid ternary and quaternary Cu-Ni-Si-Zr alloys[J].Journal of Alloys and Compounds,2002,337:155-167.
【3】赵冬梅,董企铭,刘平,等.Cu-3.2Ni-0.75Si合金时效早期相变规律及强化机理[J].中国有色金属学报,2002,12(6):1167-1171.
【4】KOKORIN V V, KOZLOVA L E, TITENKO A N. Tempera-ture hysterics of martensite transformation in aging Cu-Mn-Al alloy[J].Scripta Materialia,2002,47:499-502.
【5】仲伟深,付大军,孙跃军.稀土对电气化铁路电车线纯铜性能的影响[J].铸造,2001(2):81-84.
【6】廖乐杰,何福忠.稀土在铜及铜合金中的作用及其应用效果[J].特种铸造及有色合金,1997(2):52-55.
【7】谢冰,章少华,谢荷茵.稀土在铜及铜基合金中的作用[J].江西有色金属, 2004,18(3):31-33.
【8】波特D A.金属和合金中相变[M].李长海,余永宁,译.北京:冶金工业出版社,1988:303-309.
【9】刘合法,戴学礼.CuCo2Be合金热处理动力学曲线测定和合金强化相的分析研究[J].金属学报,1987(2):123-128.
【10】王东锋,杨萍,孔立堵,等.Cu-Ni-Si合金的时效强化机制分析[J].热加工工艺,2005(2):32-34.
【2】WITUSIEWICZ V T, ARPSHOFEN I, SEIFERT H J,et al. Enthalpy of mixing of liquid and under cooled liquid ternary and quaternary Cu-Ni-Si-Zr alloys[J].Journal of Alloys and Compounds,2002,337:155-167.
【3】赵冬梅,董企铭,刘平,等.Cu-3.2Ni-0.75Si合金时效早期相变规律及强化机理[J].中国有色金属学报,2002,12(6):1167-1171.
【4】KOKORIN V V, KOZLOVA L E, TITENKO A N. Tempera-ture hysterics of martensite transformation in aging Cu-Mn-Al alloy[J].Scripta Materialia,2002,47:499-502.
【5】仲伟深,付大军,孙跃军.稀土对电气化铁路电车线纯铜性能的影响[J].铸造,2001(2):81-84.
【6】廖乐杰,何福忠.稀土在铜及铜合金中的作用及其应用效果[J].特种铸造及有色合金,1997(2):52-55.
【7】谢冰,章少华,谢荷茵.稀土在铜及铜基合金中的作用[J].江西有色金属, 2004,18(3):31-33.
【8】波特D A.金属和合金中相变[M].李长海,余永宁,译.北京:冶金工业出版社,1988:303-309.
【9】刘合法,戴学礼.CuCo2Be合金热处理动力学曲线测定和合金强化相的分析研究[J].金属学报,1987(2):123-128.
【10】王东锋,杨萍,孔立堵,等.Cu-Ni-Si合金的时效强化机制分析[J].热加工工艺,2005(2):32-34.
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