铂基合金与GH3128合金电子束焊接接头组织与性能研究
|
摘要
采用电子束焊接技术对铂基合金与GH3128进行焊接。利用工业CT、扫描电子显微镜、显微硬度仪和材料万能试验机,研究了铂基合金与GH3128焊接接头显微组织、力学性能及断口形貌。结果表明:铂基合金与GH3128具有良好的焊接性能,焊接接头的质量良好,无缺陷,成分均一,焊缝区显微硬度在360～380之间,焊缝强度为499 MPa,断裂方式为韧性断裂,断裂位置位于铂基合金一侧。
The platinum base alloy and GH3128 were welded by electron beam welding technology. The microstructure, mechanical properties and fracture morphology of the platinum based alloy and GH3128 welded joints were studied by industrial CT, scanning electron microscope, microhardness tester and material universal testing machine. The results showed that the platinum based alloy and GH3128 have good welding performance. The welding joint has good quality, no defect, uniform composition, the micro hardness(HV) of weld zone was between 360 to 380, weld strength was 499 MPa, fracture mode as ductile fracture and fracture position on one side of platinum base alloy.
The platinum base alloy and GH3128 were welded by electron beam welding technology. The microstructure, mechanical properties and fracture morphology of the platinum based alloy and GH3128 welded joints were studied by industrial CT, scanning electron microscope, microhardness tester and material universal testing machine. The results showed that the platinum based alloy and GH3128 have good welding performance. The welding joint has good quality, no defect, uniform composition, the micro hardness(HV) of weld zone was between 360 to 380, weld strength was 499 MPa, fracture mode as ductile fracture and fracture position on one side of platinum base alloy.
引文
[1]徐方涛,张绪虎,贾中华.姿/轨控火箭发动机推力室高温抗氧化涂层[J].宇航材料工艺,2012(1):25-29.
[2]宁远涛,杨正芬,闻飞.铂[M].北京:冶金工业出版社,2010.
[3]宁远涛.铂族金属高温固溶强化型合金[J].贵金属,2009,30(2):51-56.
[4]戚发轫,朱仁璋,李颐黎.载人航天器技术[M].北京:国防工业出版社,2003.
[5]张凯锋,韩文波,王国峰.镍基合金超塑成形与扩散连接技术研究进展[J].塑性工程学报,2004,11(1):1-5.
[6]郭建亭.高温合金材料学应用基础理论[M].北京:科学出版社,2008.
[7]中国航空材料手册编辑委员会.中国航空材料手册第二卷[M].北京:中国标准出版社,2002.
[8]LI Z M,QIAN S J,WANG W.Characterization and oxidation behavior of NiCoCrAlY coating fabricated by electrophoretic deposition and vacuum heat treatment[J].Applied surface science,2011,257(10):4616-4620.
[9]李志明,钱士强,王伟.预氧化温度对GH3128合金抗高温循环氧化性能的影响[J].稀有金属材料与工程,2012,41(11):1980-1984.
[10]牛济泰,孟令辉,张杰,等.航空航天材料的焊接与胶接[M].北京:国防工业出版社,2015.
[2]宁远涛,杨正芬,闻飞.铂[M].北京:冶金工业出版社,2010.
[3]宁远涛.铂族金属高温固溶强化型合金[J].贵金属,2009,30(2):51-56.
[4]戚发轫,朱仁璋,李颐黎.载人航天器技术[M].北京:国防工业出版社,2003.
[5]张凯锋,韩文波,王国峰.镍基合金超塑成形与扩散连接技术研究进展[J].塑性工程学报,2004,11(1):1-5.
[6]郭建亭.高温合金材料学应用基础理论[M].北京:科学出版社,2008.
[7]中国航空材料手册编辑委员会.中国航空材料手册第二卷[M].北京:中国标准出版社,2002.
[8]LI Z M,QIAN S J,WANG W.Characterization and oxidation behavior of NiCoCrAlY coating fabricated by electrophoretic deposition and vacuum heat treatment[J].Applied surface science,2011,257(10):4616-4620.
[9]李志明,钱士强,王伟.预氧化温度对GH3128合金抗高温循环氧化性能的影响[J].稀有金属材料与工程,2012,41(11):1980-1984.
[10]牛济泰,孟令辉,张杰,等.航空航天材料的焊接与胶接[M].北京:国防工业出版社,2015.