摘要
用磁性法、金相法及JMatPro模拟方法对SWRCH22A冷镦钢的的等温转变曲线(TTT)进行测定。分析结果表明:TTT的C型鼻尖温度为550℃;铁素体的转变温度为827.6℃;珠光体的转变温度为712.3℃;贝氏体的转变温度为626.2℃;马氏体转变起始温度为426.4℃。这验证了JMatPro模拟计算预测的准确性,可运用JMatPro快速模拟TTT曲线,为制定热处理制度及生产工艺提供理论依据。
By using magnetic method, metallography and JMatPro software simulation, the isothermal transformation curve （TTT） of SWRCH22A cold heading steel was measured. The results show that theC shaped nasal tip temperature of TTT is 550 ℃; the transformation starting temperature of ferrite is 827.6 ℃; the transformation starting temperature ofpearlite is 712.3 ℃： the transformation starting temPerature of bainite is 626.2 ℃; the transformation starting temperature of martensite is 426.4 ℃. Meanwhile, the prediction of JMatPro simulation is proved to be accurate ;so JMatPro can be used to simulate TTT curve rapidly and accurately, which can provide theoretical basis for improving heat treatment process.
出处
《热加工工艺》
CSCD
北大核心
2013年第2期60-62,65,共4页
Hot Working Technology
