1. The feasibility of inner crack intercritieal heat treatmemt in hypoeutectoid steel was analysed in detail by metallurgical principle.
   利用金属学原理,分析了亚共析钢内裂纹亚温愈合处理的可行性。
2. The strain of the proeutectoid ferrite in hypoeutectoid steel drawing was measured and analyzed by quantitative metallography.
   采用定量金相法分析计算了亚共析钢拉拔变形中先共析铁素体应变量。

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