摘要
采用搅拌摩擦加工方法,成功将金属钒粉高效地添加到铸态AZ81母体镁合金中,制备出电子电气用新型含钒镁合金,并进行显微组织、物相组成、微观织构和力学性能的测试与分析。结果表明:新型合金晶粒细小,由α-Mg基体相和少量的Mg_(17)Al_(12)相、Al3V相组成。与铸态AZ81母体镁合金相比,该新型含钒镁合金内部显微织构明显弱化、力学性能明显提高,织构Max值降低30%,抗拉强度提高27%,屈服强度提高60%,断后伸长率提高82%,断裂方式从混合断裂变为韧性断裂。
A new type of magnesium alloy containing vanadium was prepared with the vanadium powder effectively added into the cast AZ81 parent magnesium alloy by friction stir processing, and the micro- structure, phase composition, micro-texture and mechanical properties of the alloy were tested and ana- lyzed. The results show that the new-typed alloy is with tiny grain and composed of ct-Mg matrix and a small quantity of the Mg17A112 and A13V phase. Compared microstructure of the new-typed magnesium alloy containing with the parent magnesium alloy, the internal vanadium is obviously weakened with signifi- candy improved mechanical properties. The maximum of texture of the new-typed magnesium alloy is de- creased by 30%, and the tensile strength, yield strength and elongation after fracture of the alloy can be increased by 27%, 60% and 82%, respectively. Moreover, the fracture mode of the new-typed alloy changes from mixed fracture to ductile fracture.
出处
《钢铁钒钛》
CAS
北大核心
2015年第6期32-36,共5页
Iron Steel Vanadium Titanium
基金
重庆市教委新技术推广项目(渝教科〔2013〕29号)
重庆市渝北区科委科技计划项目(2014(社)19号)
关键词
钒
镁合金
搅拌摩擦加工
微观织构
电子电气
： vanadium, magnesium alloy, friction stir processing, micro texture, electronics and electrics
