摘要
对含微量混合稀土(0.005、0.016、0.053wt%)的3种2024合金,分别进行了物理性能,力学性能,抗腐蚀性能检测和显微结构分析,结果表明:混合稀土的添加,使2024合金熔化温度范围下限明显升高100℃左右,拉压疲劳寿命提高,抗应力腐蚀性能亦有所改善。除此外,没有对2024合金的其它物理、力学性能和显微结构有明显影响,微量稀土不会影响2024合金的加工性能和使用性能。
The physical, mechanical, corrosion properties and microstructures have been studied for the three kinds of 2024 aluminium alloys containing mixed trace earth elements of 0.005,0.016,0.053 wt% respectively. It has been shown that the starting point of metling temperature range was obviously elevated, tensile-compression fatigue lifes were increased and the stress corrosion resistance has been slightly improvement.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
1992年第6期45-50,共6页
Rare Metal Materials and Engineering
关键词
2024合金
组织
性能
稀土族
铝合金
rare-earth element 2024 aluminium alloy microstructure properties
