研究了ＮｉＣｒＦｅＭｏＣｏＣｕＷ 合金宏观“黑斑”和“白斑”缺陷的形成机制。“黑斑”区富集元素主要以数量较多，尺寸较大的富含钼、钨的Ｍ６Ｃ和ＡＢ３Ｃ 等相和数量较多的粒状Ｍ６Ｃ 的形式存在于晶界上，因界面效应使晶界相对易受侵蚀；“白斑”区晶界主要富含钼、钨的μ相，比富含铬的Ｍ６Ｃ 基底区耐晶界腐蚀。 The formation mechanism of macro “black spots” and “white spots” defects in NiCrFeMoCoCuW alloy was studied. In the “dark spot” region, the enrichment elements mainly exist in the grain boundaries in the form of a large number of M6C and the larger and larger M6C and AB3C phases and a larger number of granular M6C phases, Relatively susceptible to erosion; the “white spot” zone mainly contains molybdenum and tungsten phases, which are more resistant to grain boundary corrosion than the chromium-rich M6C zone.