Research on Perforation Failure Analysis of GH984 High Temperature Alloy
By means of chemical composition analysis,metallographic examination,scanning electron microscope and energy spectrum analysis,the cause of delamination embrittlement of GH984 high temperature alloy steel pipe hot hole pipe was analyzed.The results show that the delamination defect of GH984 superalloy steel billet is related to the distribution of laves phase in the billet itself.It is related to the heating temperature and roll speed in the process of billet piercing.
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