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研究了在70℃等温保持对AM_(Γ6)合金焊接接头抗蚀性的影响。指出,焊缝金属中出现晶间腐蚀的条件是晶界上析出β-相。AM_I6合金的热处理对其
The effect of isothermal holding at 70 ℃ on the corrosion resistance of AM_ (Γ6) alloy welded joints was studied. It is pointed out that the condition of intergranular corrosion in the weld metal is the precipitation of β-phase on the grain boundary. AM_I6 alloy heat treatment on it