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 .
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页数：4
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