针对GH2036合金盘坯低倍亮斑问题，论文从亮斑部位的高倍、低倍入手，通过扫描电镜和能谱分析，得出亮斑主要是是富Cr、V和Nb等的碳化物。为了消除此类偏析，采取了增加高于1200℃的高温道次锻造的方法，使碳化物先溶解再弥散析出的方法，成功解决了GH2036亮斑问题。%Focusing on the bright spots occurred in the macrostructure of GH2036 disc billet, through the metallo⁃graphic structure and SEMEDS analysis,it is concluded that the bright spots are mainly some Cr-rich(and/or V, Nb, etc.) carbides . In order to eliminate this type of segregation,by adding a new forging method with high forging tempera⁃ture (above 1200℃) to make the carbides dissolved at first and then dispersion precipitated , the problem about bright spots of GH2036 alloy disc billet is solved successfully.
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