【摘要】 以AgCu28合金作为过渡层材料,采用热等静压(HIP)方法进行Be/CLAM钢(中国低活化马氏体钢)的扩散连接。利用扫描电镜(SEM)、能谱仪(EDS)及剪切试验分析了接头的扩散层显微组织、元素分布和力学性能。研究表明:采用AgCu28合金作为过渡层材料,在900℃,160MPa,2h条件下能够实现Be/CLAM钢的扩散连接;AgCu28合金过渡层材料能有效地减少铍、CLAM钢母材间的元素互扩散,防止了Be-Fe等脆性金属间化合物的大量生成。接头质量较好,剪切强度达180MPa。更多还原

【Abstract】 Be was jointed to CLAM stainless steel by hot isostatic pressing (HIP) diffusion bonding with AgCu28 alloy as interlayer. The microstructure, elements distribution and mechanical properties of the joints were analyzed using scanning electron microscope (SEM), X-ray energy dispersion spectrometer (EDS) and shearing experiment.The results show that good joint can be obtained using AgCu28 alloy as filler material at the condition of 900 ℃, 160 MPa, 2 h. The formation of Be-Fe intermetallic compounds is prevented because AgCu28 filler material can countercheck the mutual diffusion between Be and Fe,and the shearing strength reaches 180 MPa.更多还原