陈鹏,陈文昊,王杰,赵成功,黄本生

• 1:西南石油大学新能源与材料学院
• 2:页岩气高效开采先进材料制备技术四川省工程研究中心

摘要(Abstract)：

采用光学显微镜、透射电镜、显微硬度仪、电子万能试验机和电化学工作站等研究了2195铝锂合金在人工时效过程中的析出相、力学性能和耐腐蚀性能的变化规律。结果表明：人工时效后合金中的析出相主要为θ′相、T_1相、δ′/β′相和S相；随着人工时效时间的增加，析出相T_1和θ′的大小和密度不断增加，合金的硬度和抗拉强度逐渐增大，断后伸长率逐渐降低；时效84 h后，合金的硬度达到峰值，约为133 HV0.5;时效120 h后，合金的抗拉强度达到最大，为(560±5.1) MPa(较时效2 h后的抗拉强度提高了43.6%),伸长率为(5.6±1.2)%(较时效2 h后下降了72.1%);合金的耐蚀性能随时效时间延长而持续下降，这与晶界析出相密度增加导致的局部腐蚀敏感性升高有关。

关键词(KeyWords)： 2195铝锂合金;时效时间;析出相;力学性能;腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 西南石油大学自然科学“启航计划”项目(2023QHZ017);; 国家自然科学基金面上项目(52376076)

作者(Author): 陈鹏,陈文昊,王杰,赵成功,黄本生

DOI: 10.13289/j.issn.1009-6264.2025-0440

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