K418/42CrMo异种金属连续驱动摩擦焊次生摩擦面研究  

Study on Secondary Friction Interface of K418/42CrMo Dissimilar Metal Continuous Driven Friction Welding

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作  者:马东良 刘佳佳 马东辉 刘方奇 高远 MA Dongliang;LIU Jiajia;MA Donghui;LIU Fangqi;GAO Yuan(China Construction Industrial&Energy Engineering Group Co.,Ltd.,Jinan 250014,China;Shandong Jianze Concrete Co.,Ltd.,Jinan 250101,China;China Construction Fifth Engineering Division Co.,Ltd.,Jinan 250101,China;Shandong Zhongcheng Machinery Leasing Co.,Ltd.,Jinan 250010,China;Evergrande Group Shandong Branch,Jinan 250100,China)

机构地区:[1]中建安装集团有限公司,山东济南250014 [2]山东建泽混凝土有限公司,山东济南250101 [3]中国建筑第五工程局有限公司山东分公司,山东济南250101 [4]山东中诚机械租赁有限公司,山东济南250010 [5]恒大地产集团山东有限公司,山东济南250100

出  处:《热加工工艺》2023年第15期146-148,共3页Hot Working Technology

摘  要:采用连续驱动摩擦焊进行K418高温合金/42CrMo异种金属的焊接,对焊接接头金相组织、元素含量等进行了分析。结果表明:焊缝处K418侧各主要元素向42CrMo侧发生扩散,42CrMo侧碳元素向K418侧发生扩散,K418侧近焊缝区形成了次生摩擦面,焊接完毕后析出带状碳化物,带状碳化物与焊缝之间的K418发生再结晶。K418 superalloy/42CrMo dissimilar metals were welded by continuous driven friction welding.The microstructure and element content of the welded joint were analyzed.The results show that the main elements of K418 diffuse to 42CrMo,the carbon element of 42CrMo diffuses to K418,the secondary friction interface is formed near the weld zone at the side of K418,a banded carbide forms after welding,and the K418 between banded carbide and the weld is recrystallized.

关 键 词:连续驱动摩擦焊 K418高温合金 次生摩擦面 42CRMO钢 

分 类 号:TG453.9[金属学及工艺—焊接]

 

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