Nb微合金化对大规格GCr15钢球化组织的影响
|
摘要
为了提高大规格GCr15钢球化退火组织合格率,进行不同Nb含量微合金化试验,采用ICAP6300等离子光谱分析仪及蔡司光学显微镜进行检验分析。结果表明:采用0.022%Nb微合金化,网状碳化物明显改善,球化退火效果提高,球化退火后获得了碳化物颗粒细小均匀的球化组织。GCr15钢冶炼过程中采用0.022%Nb微合金化,可提高球化退火组织合格率。
In order to improve the qualified rate of spheroidized annealing structure of large size GCr15 steel,with different Nb content microalloying tests were carried out.ICAP6300 plasma spectrometer and Zeiss optical microscope were used for analysis.The results show that with 0.022%Nb microalloyed steel,the network carbide is significantly improved,the effect of spheroidized annealing is improved,and the fine and uniform carbide particles of spheroidizing structure is obtained after spheroidized annealing.Using 0.022%Nb microalloyed steel in the GCr15 steel smelting process can improve the qualified rate of spheroidized annealing structure.
In order to improve the qualified rate of spheroidized annealing structure of large size GCr15 steel,with different Nb content microalloying tests were carried out.ICAP6300 plasma spectrometer and Zeiss optical microscope were used for analysis.The results show that with 0.022%Nb microalloyed steel,the network carbide is significantly improved,the effect of spheroidized annealing is improved,and the fine and uniform carbide particles of spheroidizing structure is obtained after spheroidized annealing.Using 0.022%Nb microalloyed steel in the GCr15 steel smelting process can improve the qualified rate of spheroidized annealing structure.
引文
[1] 许磊,陈瑜,韩彦光,等.GCr15轴承钢球化退火研究现状[J].热加工工艺,2013,42(14):11-14.
[2] 杨洪波,马宝国,朱伏先,等.高温变形GCr15连续冷却相变及显微组织分析[J].东北大学学报,2008,29(8):1115-1117.
[3] 全国钢标准化技术委员会.高碳铬轴承钢:GB/T 18254—2016[S].北京:中国标准出版社,2016.
[4] 王东兴.连轧GCr15轴承钢的控轧控冷工艺[J].特殊钢,2004,25(3):48-49.
[5] 孙慎宏,李慧莉.GCr15钢轧后控冷碳化物网状问题浅析[J].特钢技术,2004(3):16-18.
[6] 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006:385-406.
[7] 张正延,雍岐龙,孙新军,等.共析钢中铌对珠光体相变行为的影响[J].钢铁,2012,47(12):79-83.
[8] 邓素怀,刘清友,晁月林,等.铌微合金化对轴承钢中碳化物网状的影响[J].上海金属,2015,36(6):5-9.
[2] 杨洪波,马宝国,朱伏先,等.高温变形GCr15连续冷却相变及显微组织分析[J].东北大学学报,2008,29(8):1115-1117.
[3] 全国钢标准化技术委员会.高碳铬轴承钢:GB/T 18254—2016[S].北京:中国标准出版社,2016.
[4] 王东兴.连轧GCr15轴承钢的控轧控冷工艺[J].特殊钢,2004,25(3):48-49.
[5] 孙慎宏,李慧莉.GCr15钢轧后控冷碳化物网状问题浅析[J].特钢技术,2004(3):16-18.
[6] 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006:385-406.
[7] 张正延,雍岐龙,孙新军,等.共析钢中铌对珠光体相变行为的影响[J].钢铁,2012,47(12):79-83.
[8] 邓素怀,刘清友,晁月林,等.铌微合金化对轴承钢中碳化物网状的影响[J].上海金属,2015,36(6):5-9.