Aging precipitation characteristics of lead frame Cu-Cr-Zr-Mg alloy

Qi Ming Dong; Juan Hua Su; Ping Liu; He Jun Li; Bu Xi Kang

Aging precipitation characteristics of lead frame Cu-Cr-Zr-Mg alloy

Qi Ming Dong, Juan Hua Su, Ping Liu, He Jun Li, Bu Xi Kang

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

7 引用（Scopus）

摘要

This paper presents the effects of aging processes on the properties and microstructure of Cu-0.3Cr-0.15Zr-0.05Mg lead frame alloy. Optimal conditions for good hardening and electrical conductivity can be obtained by solution treating at 920°C for 1 h and aging at 470°C for 4h and at 550°C for 1 h. The hardness and electrical conductivity can reach 108 HV, 73%IACS and 106 HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470°C aging for 4h the fine precipitation of an ordered compound CrCu₂(Zr,Mg) is found in matrix as well as fine Cr and Cu₄Zr. Aging at 550°C for 1 h some precipitates are still coherent with matrix. The CrCu₂(Zr,Mg) completely dissolves into Cr and Cu₄Zr.

源语言	英语
页（从-至）	157-160
页数	4
期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
卷	25
期	5
出版状态	已出版 - 10月 2004

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引用此

@article{86ba2e53415a45138ef192f85c330605,

title = "Aging precipitation characteristics of lead frame Cu-Cr-Zr-Mg alloy",

abstract = "This paper presents the effects of aging processes on the properties and microstructure of Cu-0.3Cr-0.15Zr-0.05Mg lead frame alloy. Optimal conditions for good hardening and electrical conductivity can be obtained by solution treating at 920°C for 1 h and aging at 470°C for 4h and at 550°C for 1 h. The hardness and electrical conductivity can reach 108 HV, 73%IACS and 106 HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470°C aging for 4h the fine precipitation of an ordered compound CrCu2(Zr,Mg) is found in matrix as well as fine Cr and Cu4Zr. Aging at 550°C for 1 h some precipitates are still coherent with matrix. The CrCu2(Zr,Mg) completely dissolves into Cr and Cu4Zr.",

keywords = "Aging, Cu-Cr-Zr-Mg alloy, Electrical conductivity, Hardness, Precipitation phase",

author = "Dong, {Qi Ming} and Su, {Juan Hua} and Ping Liu and Li, {He Jun} and Kang, {Bu Xi}",

year = "2004",

month = oct,

language = "英语",

volume = "25",

pages = "157--160",

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

issn = "1009-6264",

publisher = "Chinese Mechanical Engineering Society",

number = "5",

}

TY - JOUR

T1 - Aging precipitation characteristics of lead frame Cu-Cr-Zr-Mg alloy

AU - Dong, Qi Ming

AU - Su, Juan Hua

AU - Liu, Ping

AU - Li, He Jun

AU - Kang, Bu Xi

PY - 2004/10

Y1 - 2004/10

N2 - This paper presents the effects of aging processes on the properties and microstructure of Cu-0.3Cr-0.15Zr-0.05Mg lead frame alloy. Optimal conditions for good hardening and electrical conductivity can be obtained by solution treating at 920°C for 1 h and aging at 470°C for 4h and at 550°C for 1 h. The hardness and electrical conductivity can reach 108 HV, 73%IACS and 106 HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470°C aging for 4h the fine precipitation of an ordered compound CrCu2(Zr,Mg) is found in matrix as well as fine Cr and Cu4Zr. Aging at 550°C for 1 h some precipitates are still coherent with matrix. The CrCu2(Zr,Mg) completely dissolves into Cr and Cu4Zr.

AB - This paper presents the effects of aging processes on the properties and microstructure of Cu-0.3Cr-0.15Zr-0.05Mg lead frame alloy. Optimal conditions for good hardening and electrical conductivity can be obtained by solution treating at 920°C for 1 h and aging at 470°C for 4h and at 550°C for 1 h. The hardness and electrical conductivity can reach 108 HV, 73%IACS and 106 HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470°C aging for 4h the fine precipitation of an ordered compound CrCu2(Zr,Mg) is found in matrix as well as fine Cr and Cu4Zr. Aging at 550°C for 1 h some precipitates are still coherent with matrix. The CrCu2(Zr,Mg) completely dissolves into Cr and Cu4Zr.

KW - Aging

KW - Cu-Cr-Zr-Mg alloy

KW - Electrical conductivity

KW - Hardness

KW - Precipitation phase

UR - http://www.scopus.com/inward/record.url?scp=12444281064&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:12444281064

SN - 1009-6264

VL - 25

SP - 157

EP - 160

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

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

IS - 5

ER -

Aging precipitation characteristics of lead frame Cu-Cr-Zr-Mg alloy

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