The Cu alloying effect on the microstructure and tensile properties of an Al-Y2O3 composite

被引：0

作者：

Li, Mengyu ^{[1
]}

Hu, Jingyi ^{[1
]}

Liu, Guiliang ^{[1
]}

Gao, Tong ^{[1
]}

Liu, Xiangfa ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, 17923 Jingshi Rd, Jinan 250061, Peoples R China

来源：

MATERIALS LETTERS | 2025年 / 383卷

基金：

中国国家自然科学基金;

关键词：

Aluminum composite; Microstructure; Tensile property; Interface;

D O I：

10.1016/j.matlet.2025.138059

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Al-10Y2O3 (AYO#) and Al-10Y2O3-1.6Cu (AYOC#) composites were fabricated, and the microstructure and tensile performance at various temperatures were studied. AlYO3 and Al3Y are in-situ formed in the AYO#, whereas Al3Y transforms to finer Al 8.8 Cu 2.2 Y 3 particles in the AYOC#. The room-temperature ultimate tensile strength of the AYO# is increased by 24.9 % with Cu addition. However, the strength of the AYO# and AYOC# at 250 degrees C and 350 degrees C exhibits no obvious differences, which is regarded due to the offset of the negative effect of Cu enrichment at the AlYO3/Al interface and the positive strengthening effect of finer Al 8.8 Cu 2.2 Y 3 .

引用

页数：4

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