Effects of Cold Work and Aging Hardening on Microstructure and Properties of Cu-Cr-Zr-Ag Alloy

被引：0

作者：

Xie, Hao-feng ^{[1
]}

Mi, Xu-jun ^{[1
]}

Huang, Guo-jie ^{[1
]}

Yin, Xiang-qian ^{[1
]}

Li, Yan-feng ^{[1
]}

Gao, Bao-dong ^{[1
]}

机构：

[1] Gen Res Inst NonFerrous Met, State Key Lab Nonferrous Met & Proc, Beijing, Peoples R China

来源：

PROCEEDINGS OF THE 7TH NATIONAL CONFERENCE ON CHINESE FUNCTIONAL MATERIALS AND APPLICATIONS (2010), VOLS 1-3 | 2010年

关键词：

Cu-Cr-Zr-Ag alloy; Cold work; Aging hardening; Precipitation; Microstructure; Strength; Conductivity; DC ELECTRIC-CURRENT; MG ALLOY; PRECIPITATION; CONDUCTIVITY; RECRYSTALLIZATION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work discusses the effects of different thermomechanical treatment on mechanical properties and electrical conductivity properties of Cu-0.26 at.% Cr-0.08 at.% Zr-0.1 at.% Ag alloy. The best thermomechanical treatment process for the alloy is solution-treated at 940 degrees C for 1 h, cold drawn to 96% deformation, and aged at 400 V for 4 h. In the case of the process, the tensile strength, elongation rate and electrical conductivity of the alloy reach 524MPa, 14.86% and 80%IACS respectively. TEM analysis showed two fine and well-dispersed precipitates composing of Cr and Cu4Zr. Ag improves the alloy's mechanical properties through solid solution strengthening effect and brings few effects on the conductivity of the alloy. The experimental alloy has a strong aging strengthening effect. It is an important mechanism for the improvement of strength in alloy to make the pinning effect of precipitates on dislocations, as well as work hardening and solid solutions strengthening also contribute to the improvement of strength.

引用

页码：1661 / 1666

页数：6

共 27 条

[1] DEVIATION FROM MATTHIESSENS-RULE FOR THERMAL-CONDUCTIVITY OF QUENCHED ZN-DOPED CD CRYSTALS IN THE TEMPERATURE-RANGE 5-20 K
BALCEREK, K
MARUCHA, C
RAFALOWICZ, J
WAWRYK, R
[J]. INTERNATIONAL JOURNAL OF THERMOPHYSICS, 1993, 14 (06) : 1229 - 1234
[2] Precipitation in a Cu-Cr-Zr alloy
Batra, IS
Dey, GK
Kulkarni, UD
Banerjee, S
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 356 (1-2): : 32 - 36
[3] Microstructure and properties of a Cu-Cr-Zr alloy
Batra, IS
Dey, GK
Kulkarni, UD
Banerjee, S
[J]. JOURNAL OF NUCLEAR MATERIALS, 2001, 299 (02) : 91 - 100
[4] Strengthening in rapidly solidified age hardened Cu-Cr and Cu-Cr-Zr alloys
Correia, JB
Davies, HA
Sellars, CM
[J]. ACTA MATERIALIA, 1997, 45 (01) : 177 - 190
[5] Grünberger W, 2002, Z METALLKD, V93, P58
[6] TRANSMISSION ELECTRON MICROSCOPY OF CU-ZR-CR ALLOY
HENMI, Z
NAGAI, T
[J]. TRANSACTIONS OF THE JAPAN INSTITUTE OF METALS, 1969, 10 (05): : 305 - &
[7] The precipitation behaviour of ITER-grade Cu-Cr-Zr alloy after simulating the thermal cycle of hot isostatic pressing
Holzwarth, U
Stamm, H
[J]. JOURNAL OF NUCLEAR MATERIALS, 2000, 279 (01) : 31 - 45
[8] Li HQ, 2006, J RARE EARTH, V24, P367
[9] Aging precipitation and recrystallization of rapidly solidified Cu-Cr-Zr-Mg alloy
Liu, P
Kang, BX
Cao, XG
Huang, JL
Yen, B
Gu, HC
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 265 (1-2): : 262 - 267
[10] Stacking-fault energies for Ag, Cu, and Ni from empirical tight-binding potentials
Meyer, R
Lewis, LJ
[J]. PHYSICAL REVIEW B, 2002, 66 (05): : 521061 - 521064

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