工艺参数对异质高温合金惯性摩擦焊的影响  

Influence of Process Parameters on Inertial Friction Welding of Heterogeneous High Temperature Alloy

作　　者：尧健 张建庭 彭虎 马向东 郭建政 冯干江 YAO Jian;ZHANG Jianting;PENG Hu;MA Xiangdong;GUO Jianzheng;FENG Ganjiang(Shenzhen Wedge Central South Research Institute Co.,Ltd.,Shenzhen 518045,China;Guohan(Shanghai)Intelligent Technology Co.,Ltd.,Shanghai 200120,China;Powder Metallurgy Research Institute,Central South University,Changsha 410083,China)

机构地区：[1]深圳市万泽中南研究院有限公司,广东深圳518045 [2]国焊(上海)智能科技有限公司,上海200120 [3]中南大学粉末冶金研究院,湖南长沙410083

出　　处：《新技术新工艺》2025年第3期49-59,共11页New Technology & New Process

基　　金：深圳市科技重大专项资助项目(KJZD20230923113900001)。

摘　　要：研究了惯性摩擦焊工艺参数对第3代粉末高温合金FGH4113A与锻造GH4169合金焊接接头显微组织和拉伸性能的影响规律。结果表明:焊接持续时间随着初始转速的升高和顶锻压力的降低而延长,接头缩短量随着初始转速的升高而增大,随着顶锻压力的升高先增大后下降,在300 MPa时取得最大值。当初始转速为410~430 r/min、顶锻压力为250~300 MPa时,能得到完整的焊缝机械混合区。焊接接头650℃拉伸抗拉强度和屈服强度与GH4169基材相当,且试棒的断裂位置在远离焊缝热影响区的GH4169侧,接头优异的结合强度归因于焊缝处形成完整均匀的基材机械混合区和分布合理的焊后热处理显微组织。It was studied that the influence of inertial friction welding process parameters on the microstructure and tensile properties of welded joints of the third-generation powder high temperature alloy FGH4113A and forged GH4169 alloy.The results showed that the welding duration increased with the increase of the initial rotate speed and the decrease of the top-forging pressure,the shortening of the joint increased with the increase of the initial rotate speed,and it increased and then decreased with the increase of the top-forging pressure.The maximum value was obtained at 300 MPa.When the initial rotate speed was 410~430 r/min and the top-forging pressure was 250~300 MPa,a complete mechanical mixing zone of the weld was obtained.The tensile strength and yield strength of the welded joint at 650℃were comparable to those of GH4169 base materials,and the fracture position of the test specimen was located on the GH4169 side far away from the heat-affected zone of the weld.The excellent bonding strength of the joint was attributed to the complete and uniform mechanical mixing zone formed at the welding line and well-distributed post welding heat treatment microstructure.

关 键 词：惯性摩擦焊 焊接参数 接头组织 高温拉伸性能 FGH4113A合金 

分 类 号：TG453.9[金属学及工艺—焊接] TG132[一般工业技术—材料科学与工程] TG156[金属学及工艺—合金]