摘要
采用光学显微镜、扫描电子显微镜、X射线衍射仪、室温拉伸实验分析了5083无缝管不同位置的显微组织与力学性能,研究了无缝管挤压的不均匀变形对显微组织和力学性能的影响。实验结果表明:无缝管挤压的不均变形对显微组织有显著的影响,表层为完全再结晶组织,T/4和T/2位置以变形组织为主,只发生部分动态再结晶;外侧T/4和中心T/2位置的织构类型基本一致,外侧T/4位置的织构强度显著高于中心T/2位置;T/4和T/2位置的拉伸力学性能基本一致。
The microstructure and mechanical properties of 5083 seamless tube at different positions were analyzed by optical microscope,scanning electron microscope,X-ray diffractometer and room temperature tensile test.The influence of non-uniform deformation due to extrusion on the microstructure and mechanical properties was studied.Experimental results show that the non-uniform deformation of seamless tube extrusion has significant influence on the microstructure,the surface layer is completely recrystallized,the T/4 and T/2 positions are dominated by deformed structures and show partial dynamic recrystallization,the texture types of T/4 and T/2 positions are basically the same,the texture strength at T/4 position is significantly higher than that at T/2,the tensile mechanical properties of T/4 and T/2 positions are basically the same.
作者
孙有政
曹善鹏
高鸽
阎昭辉
吕正风
Sun Youzheng;Cao Shanpeng;Gao Ge;Yan Zhaohui;Lv Zhengfeng(National Engineering Research Center for Plastic Working of Aluminum Alloys,Shandong Nanshan Aluminum Co.,Ltd.,Longkou 264000,China;Yantai Nanshan University,Longkou 264000,China;Shandong Aluminum Alloy Pressure Processing Technology Innovation Center,Shandong Nanshan Institute of Science and Technology Co.,Ltd.,Longkou 264000,China)
出处
《轻金属》
2024年第3期33-38,共6页
Light Metals
基金
山东省自然科学基金ZR2020ME005。
关键词
5083
无缝管
显微组织
力学性能
5083
seamless tube
microstructure
mechanical properties