Strengthening mechanism of aged Cu-Cr-Zr alloy

Juan Hua Su; Ping Liu; Qi Ming Dong; He Jun Li; Feng Zhang Ren; Bao Hong Tian

Strengthening mechanism of aged Cu-Cr-Zr alloy

Juan Hua Su, Ping Liu, Qi Ming Dong, He Jun Li, Feng Zhang Ren, Bao Hong Tian

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

9 引用（Scopus）

摘要

The effects of aging processes on hardness, tensile strength and electrical conductivity properties of Cu-0.7Cr-0.13Zr alloy were investigated. The microstructure of the aged alloy was studied by transmission electron microscope (TEM). After solid solution treatment and aging at 500°C for 30 min, the hardness of 116.7 HV and electrical conductivity of 47% IACS can obtained for the tested alloy. The fine precipitation of Cu₅Zr is found in matrix. Aged at 500°C for 6 h, the hardness of 140 HV and electrical conductivity of 76% IACS are available. The maximum tensile strength of the alloy reaches 430 MPa. The precipitates are coherent Cr phase. The coherent dispersion strengthening is proved to be the major factors contributing to the improvement of tensile strength of the alloy. Aging at 500° for 8 h, the alloy still possesses high hardness of 135.6 HV and tensile strength of 410 MPa, and its electrical conductivity is 77% IACS and the precipitates in the alloy are not coherent with matrix.

源语言	英语
页（从-至）	62-65
页数	4
期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
卷	26
期	6
出版状态	已出版 - 12月 2005

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@article{ed1c8bce22cf476886bdd7cf10b54036,

title = "Strengthening mechanism of aged Cu-Cr-Zr alloy",

abstract = "The effects of aging processes on hardness, tensile strength and electrical conductivity properties of Cu-0.7Cr-0.13Zr alloy were investigated. The microstructure of the aged alloy was studied by transmission electron microscope (TEM). After solid solution treatment and aging at 500°C for 30 min, the hardness of 116.7 HV and electrical conductivity of 47% IACS can obtained for the tested alloy. The fine precipitation of Cu5Zr is found in matrix. Aged at 500°C for 6 h, the hardness of 140 HV and electrical conductivity of 76% IACS are available. The maximum tensile strength of the alloy reaches 430 MPa. The precipitates are coherent Cr phase. The coherent dispersion strengthening is proved to be the major factors contributing to the improvement of tensile strength of the alloy. Aging at 500° for 8 h, the alloy still possesses high hardness of 135.6 HV and tensile strength of 410 MPa, and its electrical conductivity is 77% IACS and the precipitates in the alloy are not coherent with matrix.",

keywords = "Aging, Coherent strengthening, Cu-0.7Cr-0.13Zr alloy, Tensile strength",

author = "Su, {Juan Hua} and Ping Liu and Dong, {Qi Ming} and Li, {He Jun} and Ren, {Feng Zhang} and Tian, {Bao Hong}",

year = "2005",

month = dec,

language = "英语",

volume = "26",

pages = "62--65",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

issn = "1009-6264",

publisher = "Chinese Mechanical Engineering Society",

number = "6",

}

TY - JOUR

T1 - Strengthening mechanism of aged Cu-Cr-Zr alloy

AU - Su, Juan Hua

AU - Liu, Ping

AU - Dong, Qi Ming

AU - Li, He Jun

AU - Ren, Feng Zhang

AU - Tian, Bao Hong

PY - 2005/12

Y1 - 2005/12

N2 - The effects of aging processes on hardness, tensile strength and electrical conductivity properties of Cu-0.7Cr-0.13Zr alloy were investigated. The microstructure of the aged alloy was studied by transmission electron microscope (TEM). After solid solution treatment and aging at 500°C for 30 min, the hardness of 116.7 HV and electrical conductivity of 47% IACS can obtained for the tested alloy. The fine precipitation of Cu5Zr is found in matrix. Aged at 500°C for 6 h, the hardness of 140 HV and electrical conductivity of 76% IACS are available. The maximum tensile strength of the alloy reaches 430 MPa. The precipitates are coherent Cr phase. The coherent dispersion strengthening is proved to be the major factors contributing to the improvement of tensile strength of the alloy. Aging at 500° for 8 h, the alloy still possesses high hardness of 135.6 HV and tensile strength of 410 MPa, and its electrical conductivity is 77% IACS and the precipitates in the alloy are not coherent with matrix.

AB - The effects of aging processes on hardness, tensile strength and electrical conductivity properties of Cu-0.7Cr-0.13Zr alloy were investigated. The microstructure of the aged alloy was studied by transmission electron microscope (TEM). After solid solution treatment and aging at 500°C for 30 min, the hardness of 116.7 HV and electrical conductivity of 47% IACS can obtained for the tested alloy. The fine precipitation of Cu5Zr is found in matrix. Aged at 500°C for 6 h, the hardness of 140 HV and electrical conductivity of 76% IACS are available. The maximum tensile strength of the alloy reaches 430 MPa. The precipitates are coherent Cr phase. The coherent dispersion strengthening is proved to be the major factors contributing to the improvement of tensile strength of the alloy. Aging at 500° for 8 h, the alloy still possesses high hardness of 135.6 HV and tensile strength of 410 MPa, and its electrical conductivity is 77% IACS and the precipitates in the alloy are not coherent with matrix.

KW - Aging

KW - Coherent strengthening

KW - Cu-0.7Cr-0.13Zr alloy

KW - Tensile strength

UR - http://www.scopus.com/inward/record.url?scp=33644863779&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:33644863779

SN - 1009-6264

VL - 26

SP - 62

EP - 65

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 6

ER -

Strengthening mechanism of aged Cu-Cr-Zr alloy

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