Effects of pre-deformation on precipitation behaviors and properties in Cu-Ni-Si-Cr alloy

Yake Wu; Ya Li; Junyong Lu; Sai Tan; Feng Jiang; Jun Sun

doi:10.1016/j.msea.2018.11.045

Effects of pre-deformation on precipitation behaviors and properties in Cu-Ni-Si-Cr alloy

Yake Wu
, Ya Li
, Junyong Lu
, Sai Tan
, Feng Jiang
, Jun Sun

School of Materials Science and Engineering

Xi'an Jiaotong University
Naval University of Engineering Wuhan

Research output: Contribution to journal › Article › peer-review

114 Scopus citations

Abstract

The effects of pre-deformation on the precipitation behaviors and properties in Cu-Ni-Si-Cr alloy were investigated. The results showed the electrical conductivity and the strength of the alloys after peak aging increased with the pre-deformation amount. Quantitative analyses demonstrated the deformation-induced defects improved the precipitation and the number density of precipitates but reduced their average radii. As a result, the conductivity improved due to the slight promotion of precipitation while the strength increased mostly from the enhanced precipitate strengthening and then from the unremoved work hardening. At elevated temperatures, the effects of pre-deformation were greatly weakened and then the difference among the alloys after different treatments disappeared.

Original language	English
Pages (from-to)	501-507
Number of pages	7
Journal	Materials Science and Engineering: A
Volume	742
DOIs	https://doi.org/10.1016/j.msea.2018.11.045
State	Published - 10 Jan 2019

Keywords

Cu-Ni-Si-Cr alloy
Defect
Pre-deformation
Precipitation
Properties

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10.1016/j.msea.2018.11.045

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title = "Effects of pre-deformation on precipitation behaviors and properties in Cu-Ni-Si-Cr alloy",

abstract = "The effects of pre-deformation on the precipitation behaviors and properties in Cu-Ni-Si-Cr alloy were investigated. The results showed the electrical conductivity and the strength of the alloys after peak aging increased with the pre-deformation amount. Quantitative analyses demonstrated the deformation-induced defects improved the precipitation and the number density of precipitates but reduced their average radii. As a result, the conductivity improved due to the slight promotion of precipitation while the strength increased mostly from the enhanced precipitate strengthening and then from the unremoved work hardening. At elevated temperatures, the effects of pre-deformation were greatly weakened and then the difference among the alloys after different treatments disappeared.",

keywords = "Cu-Ni-Si-Cr alloy, Defect, Pre-deformation, Precipitation, Properties",

author = "Yake Wu and Ya Li and Junyong Lu and Sai Tan and Feng Jiang and Jun Sun",

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TY - JOUR

T1 - Effects of pre-deformation on precipitation behaviors and properties in Cu-Ni-Si-Cr alloy

AU - Wu, Yake

AU - Li, Ya

AU - Lu, Junyong

AU - Tan, Sai

AU - Jiang, Feng

AU - Sun, Jun

PY - 2019/1/10

Y1 - 2019/1/10

N2 - The effects of pre-deformation on the precipitation behaviors and properties in Cu-Ni-Si-Cr alloy were investigated. The results showed the electrical conductivity and the strength of the alloys after peak aging increased with the pre-deformation amount. Quantitative analyses demonstrated the deformation-induced defects improved the precipitation and the number density of precipitates but reduced their average radii. As a result, the conductivity improved due to the slight promotion of precipitation while the strength increased mostly from the enhanced precipitate strengthening and then from the unremoved work hardening. At elevated temperatures, the effects of pre-deformation were greatly weakened and then the difference among the alloys after different treatments disappeared.

AB - The effects of pre-deformation on the precipitation behaviors and properties in Cu-Ni-Si-Cr alloy were investigated. The results showed the electrical conductivity and the strength of the alloys after peak aging increased with the pre-deformation amount. Quantitative analyses demonstrated the deformation-induced defects improved the precipitation and the number density of precipitates but reduced their average radii. As a result, the conductivity improved due to the slight promotion of precipitation while the strength increased mostly from the enhanced precipitate strengthening and then from the unremoved work hardening. At elevated temperatures, the effects of pre-deformation were greatly weakened and then the difference among the alloys after different treatments disappeared.

KW - Cu-Ni-Si-Cr alloy

KW - Defect

KW - Pre-deformation

KW - Precipitation

KW - Properties

UR - https://www.scopus.com/pages/publications/85056638611

U2 - 10.1016/j.msea.2018.11.045

DO - 10.1016/j.msea.2018.11.045

M3 - 文章

AN - SCOPUS:85056638611

SN - 0921-5093

VL - 742

SP - 501

EP - 507

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Effects of pre-deformation on precipitation behaviors and properties in Cu-Ni-Si-Cr alloy

Abstract

Keywords

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