炉卷轧机轧制温度对2507超级双相不锈钢脆性区长度的影响
|
摘要
应用EBSD技术研究了2507脆断处的组织,结果表明,脆断区域存在σ相,σ相比例偏高是其脆断的主要原因。分析了炉卷轧机轧制温度对其脆断区域长度的影响,轧制温度提高30℃头部区域脆性区长度缩短为35m,提高50℃缩短为28m,提高100℃则为16m。
In the brittle fracture zone of 2507 were investigated by EBSD,the results show that there existsσphase in brittle fracture zone,the higher proportion of the sigma phase is the main reason for the brittle fracture of 2507.Influence of the steckel mill rolling temperature on the length of brittle fracture zone show that the rolling temperature is increased by 30 degrees,the brittle zone length of head region is shortened to 35 m,the 50 degree is shortened to 28 m,and the 100 degree is 16 m.
In the brittle fracture zone of 2507 were investigated by EBSD,the results show that there existsσphase in brittle fracture zone,the higher proportion of the sigma phase is the main reason for the brittle fracture of 2507.Influence of the steckel mill rolling temperature on the length of brittle fracture zone show that the rolling temperature is increased by 30 degrees,the brittle zone length of head region is shortened to 35 m,the 50 degree is shortened to 28 m,and the 100 degree is 16 m.
引文
[1]肖纪美.不锈钢的金属学问题[M].北京:冶金工业出版社,1983.
[2]刘雄,丁秀平,何燕霖,等.高温时效对2205双相不锈钢冲击韧性的影响[J].上海金属,2010,32(01):39-42.
[3]吴玖.双相不锈钢[M].北京:冶金工业出版社,1999.
[4]黄锐.S31803双相不锈中σ析出相及其对性能的影响研究[D].西安:西安建筑科技大学,2009.
[2]刘雄,丁秀平,何燕霖,等.高温时效对2205双相不锈钢冲击韧性的影响[J].上海金属,2010,32(01):39-42.
[3]吴玖.双相不锈钢[M].北京:冶金工业出版社,1999.
[4]黄锐.S31803双相不锈中σ析出相及其对性能的影响研究[D].西安:西安建筑科技大学,2009.