【摘要】 对新型Ｎｉ４８Ｐｄ３６ＣｒＢＳｉ钎料钎焊高温合金ＧＨ６２５的接头性能进行了分析。钎焊时，只有在液态钎料能充分地流入并致密地填充全部钎缝间隙才能得到一个优质接头，实验结果表明，这种钎料对ＧＨ６２５有良好的润湿性，润湿角仅为６°。钎焊后，由于在钎缝组织中得到了有利于接头强度的固溶体组织，使得接头抗拉强度室温时为４９８．７ＭＰａ，６５０℃时为４７１．９ＭＰａ；抗剪强度室温时为５０１．７ＭＰａ，６５０℃时为３９９．５ＭＰａ。更多还原

【Abstract】 The properties of GH625 alloy joints brazed by a new type of brazing alloy Ni48Pd36CrBSi have been analysed. The brazing alloy has a good wettability to the GH625 alloy. The structure of the GH625 alloy joints is a solid solution phase, which is advantageous for strengthening the joints. The tensile strength of the GH625 alloy joint is 4987MPa at RT and 4719MPa at 650℃, and the shear strength of the joint is 5017MPa at RT and 3995MPa at 650℃.更多还原