主要通过绘制CCT曲线、热轧试验以及直接淬火试验，研究了加入钛元素对含硼热冲压成形用钢组织和性能的影响。结果表明：加入质量分数为0．015％的钛，可以提高试验钢的淬透性，在10℃·S^-1的冷速下即能得到完全马氏体组织，而且可以提高热轧板淬火后的强度和硬度，并可使马氏体板条间距从0．35-0．54μm细化到0．12-0．25μm。
Effects of titanium on the microstructure and properties of hot stamp-formed steels containing boron were studied by drawing CCT curves, hot rolling test and direct quenching test. The results show that adding 0. 015wt% titanium could increase the hardenability of the tested steels, and thus got full martensitic microstrueture at a lower cooling rate of 10 ℃·S^-1. The strength and hardness of the hot rolled sheets after quenching could he increased after adding 0. 015wt% titanium, and the distance of martensite lath could be decreased from 0. 35-0. 54 μm toO. 12-0. 25μrn.
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