Effects of a small addition of Cu or Ge on the microstructure and mechanical property of an Al-Si alloy

被引：1

作者：

Nakagawa, Keiyu ^{[1
]}

Kanadani, Teruto

Nakayama, Kenich

Sakakibara, Akira

机构：

[1] Okayama Univ Sci, Dept Mech Syst Engn, Okayama, Japan

[2] DAIKI Alminium Ind Co, Okayama, Japan

[3] Okayama Univ, Dept Mech Engn, Okayama, Japan

来源：

ALUMINIUM ALLOYS 2006, PTS 1 AND 2: RESEARCH THROUGH INNOVATION AND TECHNOLOGY | 2006年 / 519-521卷

关键词：

Al-Si-Cu alloy; Al-Si-Ge alloy; fatigue test; tensile test; precipitate-free zone; microstructure; grain boundary; aging; vacancy;

D O I：

10.4028/www.scientific.net/MSF.519-521.425

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, we investigated the effects of a small addition of Cu (0.1%) or Ge (0.1%) on the microstructure and mechanical property of AI-Si alloys. The results are as follows. The size of precipitates in the Cu-added or Ge-added alloys is smaller than that in the binary alloy. The size of the precipitates at the grain boundary in the Cu-added or Ge-added alloys is larger than the size of the precipitates in the binary alloy. However, the number of the precipitates at the grain boundary in the Cu-added and Ge-added alloys is smaller than that in the binary alloy. It was found that a small addition of Cu or Ge has the effect of raising the fatigue strength under repeated tensile loading as well as the tensile strength.

引用

页码：425 / 430

页数：6

共 2 条

[1] Structure change near grain boundaries resulting from aging-treatment and its effect on fatigue strength of an Al-1.2%Si alloy
Nakagawa, K
Kanadani, T
Hosokawa, N
Tanimoto, T
[J]. ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3, 2002, 396-4 : 1359 - 1364
[2] METALLOGRAPHIC INVESTIGATION OF PRECIPITATION OF SILICON FROM ALUMINUM
ROSENBAUM, HS
TURNBULL, D
[J]. ACTA METALLURGICA, 1959, 7 (10): : 664 - 674

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