为了不发生屈服点延伸，合金中的锰当量必须超过1.61%，马氏体体积分数的门槛值为7%。
In order to prevent the yield-point elongation occurring the manganese equivalence in alloy must exceeds 1.61%, and the threshold value of Martensite volume fraction is 7%.
为了不发生屈服点延伸，合金中的锰当量必须超过1.61%，马氏体体积分数的门槛值为7%。
In order to prevent the yield-point elongation occurring the manganese equivalence in alloy must exceeds 1.61%, and the threshold value of Martensite volume fraction is 7%.
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