论文部分内容阅读
研究了电脉冲(ECP)处理对亚共晶铁碳合金珠光体组织的影响。结果表明,亚共晶铁碳合金经ECP处理后,促进了石墨的生成,增加了铁素体的形核率,最终导致组织中铁素体相对含量增加,珠光体相对含量相应降低;ECP处理同样增加了共析转变的有效驱动力,且随着输出电压的升高,珠光体内的渗碳体层片逐渐变短、变薄,珠光体的显微硬度逐渐增加。
The effect of electric pulse (ECP) treatment on the microstructure of hypoeutectic iron-carbon alloy pearlite was studied. The results showed that the ECP treatment promoted the formation of graphite and increased the nucleation rate of ferrite, which eventually led to the increase of the relative content of ferrite and the corresponding decrease of the relative content of pearlite. The ECP treatment Which increases the effective driving force of eutectoid transformation. With the increase of output voltage, the cementite layer in pearlite gradually becomes shorter and thinner, and the microhardness of pearlite gradually increases.