The contribution of aluminides to strength of Al-Mg2Si-Cu-Ni alloys at room and elevated temperatures

被引：10

作者：

Sun, Yilin ^{[1
]}

Li, Chong ^{[1
]}

Liu, Yongchang ^{[1
]}

Ding, Ran ^{[1
]}

Liu, Xiangfa ^{[2
]}

Kim, Su-Hyeon ^{[3
]}

Yu, Liming ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300350, Peoples R China

[2] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China

[3] Korea Inst Mat Sci, Dept Aluminum, Chang Won 51508, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2021年 / 817卷

基金：

中国国家自然科学基金;

关键词：

Al-Mg2Si alloys; Intermetallic phases; Microstructure; Mechanical properties; IN-SITU COMPOSITE; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; PRIMARY MG2SI; NANOCRYSTALLINE MG2SI; INTERMETALLIC PHASES; MICROSTRUCTURE; EVOLUTION; NI; CU;

D O I：

10.1016/j.msea.2021.141381

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of the Ni/Cu-rich aluminides on the strength of Al-15%Mg2Si-Cu-Ni alloys at room and elevated temperatures was analyzed and revealed. The contribution of aluminides to alloys' strength is promoted with the temperature increasing from 25 degrees C to 350 degrees C. Both Mg2Si and aluminides strengthen Al matrix and carry the load at room temperature (25 degrees C). The thermal stable and interconnected aluminides play the leading role in loadcarrying and load-transfer capacity at high temperature (350 degrees C), resulting in the pronounced contribution to alloys' strength. At 450 degrees C, aluminides lose load-bearing capacity and have no effect on the increase of alloys' strength.

引用

页数：7

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