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05011628

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[交流] 【求助】求助:40CrNi2Si2MoVA的奥氏体晶界腐蚀

40CrNi2Si2MoVA的奥氏体晶界腐蚀,其工艺状态为锻造-正火-高温回火-油淬,最终显微组织为马氏体。花了十几天还没有把腐蚀剂配出来,整天纠结于腐蚀剂中,但还是没有结果,总是组织出来而未见晶界。我也听说是这钢纯度太高(双真空熔炼,P<0.010%,S<0.010%),晶界杂质少,晶界腐蚀困难。
       期待大家的回复…… 谢谢了……
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