【作者】 谷海容； 张建； 胡学文； 张宜； 刘雅政； 周乐育；

【Author】 Gu Hairong~1 Zhang Jian~1 Hu Xuewen~1 Zhang Yi~1 Liu Yazheng~2 Zhou Leyu~2 (1.Science & Technology Center of Masteel Co.,Ltd.,Maanshan,243000; 2.Materials Science & Engineering School USTB,Beijing,100006)

【机构】 马钢公司技术中心； 北京科技大学材料学院；

【摘要】 根据马钢热连轧生产线特点,通过实验室轧制和卷取模拟试验,研究了600 MPa级热轧双相钢工艺与组织性能关系。结果表明:采用C-Si-Mn-Cr系成分和轧后两段式冷却,在低温卷取工艺下,可获得理想的铁素体+马氏体双相组织,且力学性能优异;由组织性能分析可知,本实验钢铁素体体积分数主要取决于开冷温度影响,而两段水冷间的空冷时间影响不明显;同时,通过回火实验分析可知,本实验钢在175℃以下时,马氏体处于稳定状态。更多还原

【Abstract】 The processing and microstructure and property of DP600 was investigated by laboratory rolling and simulation of coiling.The result showed that this DP steel with C-Si-Mn-Cr was provided with ferrite and martensite,and possess excellent property by using two-stage cooling and low-temperature coiling.It was can be seen from the results that the volume fraction of ferrite of this experimental steel was mainly affected by the beginning temperature of water cooling better than time of air cooling.At the same time,the results of tempering experiments showed that martensite of this steel was stable only under 175℃.更多还原