多向强应变对铝青铜显微组织及力学性能的影响  

Effect of Multi-directional Strong Strain on Microstructure and Mechanical Properties of Aluminum Bronze

作　　者：刘晓红[1] 颜春辉 黄东英 王艳明 LIU Xiaohong;YAN Chunhui;HUANG Dongying;WANG Yanming(Guangxi Key Laboratory of Manufacturing System&Advanced Manufacturing Technology(School of Mechanical Engineering,Guangxi University),Nanning 530004,China)

机构地区：[1]广西制造系统与先进制造技术重点实验室(广西大学机械工程学院),广西南宁530004

出　　处：《热加工工艺》2021年第15期64-66,共3页Hot Working Technology

基　　金：国家自然科学基金项目(51561003);广西制造系统与先进制造技术重点实验室基金项目(17-259-05S010)。

摘　　要：采用多向锻造工艺加工了QAl9-4铝青铜,研究了多向强应变对铝青铜的力学性能及显微组织的影响。发现多向锻造加时效处理使铝青铜的强度、硬度提高,获得塑性良好的优良综合力学性能。多向锻造加时效处理使铝青铜组织显著细化且呈双峰晶粒尺度分布,较细的晶粒使材料具有高的硬度而稍粗的晶粒使材料具有良好的塑性。QAl9-4 aluminum bronze was processed by multi-directional forging. The effects of multi-directional strong strain on the mechanical properties and microstructure of aluminum bronze were investigated. It is found that the strength and hardness of aluminum bronze are improved by multi-direction forging and aging treatment, and the excellent comprehensive mechanical properties with good plasticity are obtained. The microstructure of the Al-bronze is obviously refined and distributed in bimodal grain size by multi-direction forging and aging treatment, and the fine grain makes the material have high hardness, and slightly thicker grain makes the material have good plasticity.

关 键 词：铝青铜 多向锻造 显微组织 力学性能 

分 类 号：TG319[金属学及工艺—金属压力加工]