实验室制备了微碳Cr-Mo系深冲钢,利用SEM、彩色金相以及单向拉伸技术研究了微碳钢的组织与性能,并采用XRD和EBSD技术探讨了相变对微碳钢织构的影响.结果表明,随退火温度的增加,微碳钢的强度、伸长率和r值均出现先增加后降低的趋势,860℃退火时达到最优;体积分数约4％的马氏体相变对微碳钢的铁素体基体织构类型影响较小,然而,尺寸较大且分布不均匀的马氏体相会削弱γ纤维织构强度;高温贝氏体相变造成碳的扩散与富集使贝氏体取向差增大是导致微碳钢产生不利织构的主要原因之一.
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