摘要
对挤压态6063铝合金进行了530℃×1 h的固溶处理,再进行175℃×(1~14)h的时效处理试验。采用显微组织观察、拉伸试验、硬度测试研究了不同时效时间对6063铝合金组织和力学性能的影响。结果表明:挤压态6063铝合金进行530℃×1 h的固溶处理,再进行175℃×(1~14)h时效处理,6063铝合金硬度出现了双峰现象,时效时间在4 h和12 h时都达到强化峰值,硬度分别达到86.2 HV和94.1 HV。6063铝合金经530℃×1 h固溶+175℃×12 h时效处理后,组织析出相主要为分布均匀的β’相,其抗拉强度、屈服强度和硬度比挤压态分别提高了44.4%、69.8%和137.0%。
The extruded 6063 aluminum alloy was treated by solid solution treatment at 530 ℃ for 1 h, and then the aging treatment at 175 ℃for 1-14 h was carried out. The effects of aging time on the microstructure and mechanical properties of6063 aluminum alloy were studied by means of microstructure observation, tensile test and hardness test. The results show that the hardness of 6063 aluminum alloy has double peaks after solution treatment at 530 ℃ for 1 h and aging treatment at 175 ℃for 1-14 h. The hardness of 6063 aluminum alloy reaches 86.2 HV and 94.1 HV at aging time of 4 h and 12 h, respectively.The precipitated phase of 6063 aluminum alloy after solid solution treatment at 530 ℃ for 1 h and aging treatment at 175 ℃for 12 h is mainly homogeneous distribution of β’ phase. Tensile strength, yield strength and hardness are 44.4%, 69.8% and137.0% higher than those of extrusion state, respectively.
作者
魏玉
WEI Yu(School of Applied Engineering,He'nan University of Science and Technology,Sanmenxia 472000,China;College of Mechanical and Electrical Engineering,Sanmenxia Polytechnic,Sanmenxia 472000,China)
出处
《热加工工艺》
北大核心
2020年第14期134-136,共3页
Hot Working Technology
基金
河南省重点研发与推广专项(科技攻关)项目(182102210263)。
