摘要
通过Gleeble-3800型热模拟机研究一种新型冷轧辊用高合金锻钢在不同加热速率(5~50℃/s),加热温度(1050~1150℃)及保温时间(10~800 s)下的奥氏体晶粒长大规律。结果表明:试验钢的平均奥氏体晶粒尺寸随加热速率的升高而减小,同时随加热温度的升高和保温时间的延长而增大。基于金相试验数据利用回归分析建立了描述新型冷轧辊用高合金锻钢不同加热速率下加热与保温过程的奥氏体晶粒长大规律的数学模型。
The austenite grain growth behaviors of a new high alloy forged steel for cold working rolls heat treated at different temperatures with different heating rates and held for different time were studied by a Gleeble-3800 thermo-mechanical simulator. The results show that the average austenite grain size of the tested steel decreases with the increasing of the heating rates and increases with the increasing of the heating temperature and holding time. Based on the metallographie test results and the regression analysis, the mathematical models of the austenite grain growth behaviors of the steel during the heating and heat preservation processes with different heating rates are established.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2017年第11期65-70,共6页
Transactions of Materials and Heat Treatment
基金
河北省自然科学基金(E2016203217)
