硼钢板相比例控制试验方法及试验参数的确定

车身用硼钢板的机械性能实际取决于微观组织的相比例，而不同的相比例是由保温温度、保温时间等试验参数决定的，若要获得材料预期的相比例，需研究试验参数与相比例的关系.利用高温相变仪在降温速率30 ℃?s-1的工况下研究了不同保温温度下材料的相比例，并结合经验公式给出了硼钢板相比例控制的关键参数及相比例控制方法，可为工程实际中获取固定相比例的微观组织提供理论参考.
The mechanical properties of the boron steel used for automobile actually depend on the phase ratio of the microstructure, and the phase ratio is determined by soaking temperature and time. To obtain the expected phase ratio, it is needed to study the relationship between the experimental parameters and the phase ratio. The phase ratio of the material with different soaking temperature is studied with the cooling rate of 30 ℃?s-1, and the key parameters and method of controlling phase ratio combined with the empirical formula are given. It could provide theoretical reference to obtain the microstructure of provisions phase ratio in practical engineering