电焊机2026，Vol.56Issue(8)：89-96,8.DOI:10.7512/j.issn.1001-2303.2026.08.09
BNi2非晶钎料钎焊Haynes 230/Inconel 617异种金属接头力学性能研究
Study on Mechanical Properties of Dissimilar Metal Joints Between Haynes 230 and Inconel 617 Brazed with Amorphous BNi2 Filler Metal
摘要
Abstract
To meet the requirements of precision joining and high-temperature service of dissimilar Haynes 230 and Inconel 617 superalloys,vacuum brazing experiments were carried out using amorphous nickel-based BNi2 filler metal.With the holding time fixed at 15 min,two brazing temperatures of 1 015℃and 1 035℃were designed.Wetting tests,room-temperature shear tests and high-temperature shear tests at 750℃were performed to systematically investigate the effects of brazing temperature on the wetting and spreading characteristics of the filler metal,as well as the room-temperature and high-temperature mechanical properties of the dissimilar joints.The results reveal that increasing brazing temperature exerts differentiated influences on the filler wetting behavior for the two base metals.Temperature rise significantly improves the spreading performance of BNi2 filler on Haynes 230 substrate,while it imposes no obvious variation on the wetting property over Inconel 617.The joint fabricated at the low-temperature process(1 015℃/15 min)exhibits excellent room-temperature shear strength and superior high-temperature mechanical stability,with an average room-temperature shear strength of 206.96 MPa and an average high-temperature shear strength of 126.88 MPa at 750℃.Although the high-temperature pro-cess(1 035℃/15 min)achieves more uniform spreading of the filler metal,the excessively thick interfacial diffusion layer facilitates the formation of brittle phases,thereby deteriorating the high-temperature mechanical properties of the joint.The correlation mechanism among brazing temperature,wetting behavior and mechanical properties is clarified based on experi-mental data.This work can provide reliable data support for process optimization and engineering application of vacuum brazing of dissimilar nickel-based superalloy joints.关键词
BNi2非晶钎料/Haynes230合金/Inconel617合金/真空钎焊/润湿性能/力学性能Key words
BNi2/Haynes 230 alloy/Inconel 617 alloy/vacuum brazing/wettability/mechanical properties分类
矿业与冶金引用本文复制引用
刘德运,郭瑞臻,李云月,畅海丞,赵凯,秦建..BNi2非晶钎料钎焊Haynes 230/Inconel 617异种金属接头力学性能研究[J].电焊机,2026,56(8):89-96,8.基金项目
中原科技创新青年拔尖人才项目 （）
