The strain of the proeutectoid ferrite in hypoeutectoid steel drawing was measured and analyzed by quantitative metallography.

采用定金相法分析计共析钢拉拔形先共析铁素体应。

The feasibility of inner crack intercritieal heat treatmemt in hypoeutectoid steel was analysed in detail by metallurgical principle.

用金属学原理,分析共析钢内裂纹温愈合处理的可行性。