摘要
微束等离子弧增材制造具有成型效率高、成型精度好的优点,采用微束等离子弧为热源,以ER308L不锈钢丝材为试验材料,采用不同的熔敷路径,进行微束等离子弧增材制造成形,分析了成形件的结构与组织性能,采用“Z”字熔敷路径成形比采用单向熔敷路径的试样成型更好;通过性能测试和组织对比分析得出,采用“Z”字熔敷路径成形和单向熔敷路径成形时,试样组织均为奥氏体和铁素体,而“Z”字熔敷路径成形试样组织有明显交错;“Z”字熔敷路径成形时抗拉强度、硬度、延伸率均高于单向熔敷路径成形的试样。
Micro-plasma arc additive manufacturing has the mirits of high forming accuracy and efficiency.In this research micro-plasma arc additive manufacture was perform using ER308L wire through different forming paths.Microstructure and mechanical properties of the obtained components were investigated.The results show that the components quality of the Z-type forming path is better than the unidirectional ones.The former has higher tensile strength,hardness value and percentage of elongation because of a crossed microstructure and both components composed of austenite and ferrite.
作者
任香会
张文杰
易耀勇
高世一
刘丹
REN Xiang-hui;ZHANG Wen-jie;YI Yao-yong;GAO Shi-yi;LIU Dan(Technical Equipment R&D Center,Guangdong Welding Institute(China-Ukraine E.O.Paton Institute of Welding)Guangzhou 510650,China;College of Materials Science and Engineering,Shenyang University of Technology,Shenyang 410083,China)
出处
《沈阳航空航天大学学报》
2019年第6期27-32,共6页
Journal of Shenyang Aerospace University
基金
广东省科学院建设国内一流研究机构行动专项资金项目(项目编号:2019GDASYL-0302013)
广东省科学院院属骨干科研机构创新能力建设专项项目(项目编号:2017GDASCX-0113)
广州市科技计划项目(项目编号:201704030068)
广州市科技计划项目(项目编号:201907010006)
广东省科技计划项目(项目编号:2018A050506060)
广东省工业技术研究院(广州有色金属研究院)创新能力建设(项目编号:2014B070705007)
广省省級科技计划项目(项目编号:2017A070701026)
关键词
ER308L不锈钢
微束等离子弧
增材制造
熔敷路径
成型精度
性能分析
ER308L stainless steel
microbeam plasma arc
additive manufacture
forming path
forming accuracy
performance analysis
