材料与冶金学报2016，Vol.15Issue(1)：58-60,65,4.DOI:10.14186/j.cnki.1671-6620.2016.01.011
热处理工艺对低温挤压Zn-15 Al锌合金组织及性能的影响
Effects of heat treatment on microstructure and mechanical property of extruded Zn-15 Al Zn alloy at lower extrusion temperature
摘要
Abstract
The influences of cooling rates during heat treatment on the microstructure and mechanical properties of the extruded Zn-15Al Zn-alloy at 200 ℃ have been investigated by tensile test and scanning electron microscopy. The results show that the fine α( Al)phase of extruded Zn -15Al Zn -alloy at 200 ℃ occurred coarsening by heated treatment at 320 ℃ for 1 h. The tensile strength of extruded Zn -15Al Zn - alloy increased slightly,while the elongation of extruded Zn-15Al Zn-alloy decreased significantly after water quenching,because theα(Al)phase is transformed into α( Al)+η( Zn)fine granular structure though continuous precipitation. After air cooling,the tensile strengthen were increased by about 1 times and the elongation decreased by about 80%,Owing to the α( Al)phase formed a fine lamellar structure decomposition by eutectoid transformation. It is implied that the different mechanical properties can be obtained in the extrusion Zn-15Al Zn alloy manufactured by heat treatment,and the mechanical properties can be satisfied the requirements of different applications.关键词
Zn-15Al锌合金/热处理/微观组织/力学性能Key words
Zn-15Al Zn alloy/heat treatment/microstructure/mechanical property分类
矿业与冶金引用本文复制引用
孙世能,王利卿,任玉平,杨波,秦高梧..热处理工艺对低温挤压Zn-15 Al锌合金组织及性能的影响[J].材料与冶金学报,2016,15(1):58-60,65,4.基金项目
国家自然科学基金资助项目（51171043，51371046），教育部新世纪优秀人才（NECT-12-0109），东北大学基本科研业务费资助项目（N130610002）.东北大学优秀博士学位论文培育项目A类 （）
