Die-casting aluminum alloys for high-efficiency thermal radiation components

被引：1

作者：

Im, Byoungyong ^{[1
]}

Kang, Yubin ^{[1
]}

Lee, Chan Gi ^{[1
]}

Kim, Dae-Guen ^{[1
]}

Kim, Hangoo ^{[2
]}

Kim, Seongwoo ^{[2
,3
]}

Park, Kwang Hoon ^{[3
,4
]}

Kwak, Tae Yang ^{[5
]}

机构：

[1] Inst Adv Engn, Yongin, South Korea

[2] NEDEC, Suwon, South Korea

[3] Inha Univ, Incheon, South Korea

[4] EZCASTEC, Seoul, South Korea

[5] Sejong Univ, Seoul, South Korea

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2019年 / 110卷 / 09期

关键词：

Al alloys; Gravity die casting; Thermal conductivity; Fluidity; ALDC12; Thermal radiation component; MECHANICAL-PROPERTIES; CONDUCTIVITY; PHASE; MICROSTRUCTURE; COMPOSITES; EXPANSION; ELEMENTS;

D O I：

10.3139/146.111810

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Al alloys with improved thermal conductivity and similar castability compared to the most commonly used Al-Si alloying system (ALDC12) were developed. Starting with the ALDC3 composition, we modified the alloying elements to investigate the effect on thermal conductivity and fluidity. The modified alloys had slightly higher thermal conductivity of similar to 110-116 W m(-1) K-1 compared to ALDC12 (92 W m(-1) K-1). The largest improvement in the thermal conductivity compared to ALDC12 was 26%. Moreover, the developed alloys showed a relative fluidity of similar to 80-88 % (depending on the composition) compared to ALDC12. Simulations confirmed that the heat generated from the internal parts of an electronic device could be effectively absorbed and discharged to the developed alloys as a heat sink.

引用

页码：865 / 873

页数：9

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