摘要
通过显微组织观察及力学性能的分析,研究不同含量稀土元素La对2024铝合金铸态组织及力学性能的影响。结果表明:随着稀土元素La含量的增加,2024铝合金铸态组织逐渐细化,当稀土元素La含量为0.3%时,晶粒细化效果最佳;继续提高La含量,晶粒则发生粗化。当稀土元素La含量为0.2%时,力学性能最佳。
The effect of different content of rare earth element La on the as-cast microstructure and mechanical properties of 2024 aluminum alloy was studied by microstructure observation and mechanical properties analysis.The results show that with the increases of rare earth La content,the as-cast microstructure of 2024 aluminum alloy is gradually refined.When the content of rare earth element La is 0.3%,the grain refinement effect is the best.The crystal grain coarsenes with further the increase of La content.When the content of rare earth element La is 0.2%,the mechanical properties are the best.
作者
温杨
于长富
孙巍
谢方亮
杨路
徐强
WEN Yang;YU Chang-fu;SUN Wei;XIE Fang-liang;YANG Lu;XU Qiang(Yingkou Zhongwang Aluminum Business Co.,Ltd.,Yingkou Liaoning 111003,China)
出处
《热处理技术与装备》
2021年第6期6-9,共4页
Heat Treatment Technology and Equipment
基金
辽宁省中央引导地方科技发展专项资金(2021JH6/10500072)。
关键词
2024铝合金
稀土元素LA
晶粒细化
力学性能
2024 aluminum alloy
rare earth element La
grain refinement
mechanical properties