正火温度对GCr15轴承钢碳化物溶解扩散和冲击性能的影响
|
摘要
研究了正火处理对热轧态GCr15轴承钢组织和冲击性能的影响。结果表明:正火处理可以有效降低钢中的网状碳化物级别,并且随正火温度提高,网状碳化物级别持续降低;但是当正火温度为900℃时,钢中出现了大片呈条带分布的颗粒状碳化物,严重破坏了钢的组织均匀性,随正火温度升高,此类碳化物逐渐减少; 950℃时此类碳化物含量已较少,1000℃时基本消失。对钢的冲击性能测试表明,随正火温度升高,钢的冲击性能不断增加,其中900～950℃之间增幅较大,这与条带状碳化物的快速减少有关。
Effect of normalizing treatment on microstructure and impact property of hot-rolled GCr15 bearing steel was studied. The results show that the normalizing treatment can effectively recluce the grade of network carbides in the steel,and as the normalizing temperature increases,the level of network carbides continuously decreases. However,when the normalizing temperature is 900 ℃,a large number of strips distributed granular carbides appear in the steel,which seriously destroys the homogeneity of the steel. As the normalizing temperature increases,such carbides gradually disappear,when the temperature is 950 ℃,the content of these carbides is less,and it basically disappear at 1000 ℃. The test of impact property of the steel shows that with the increase of normalizing temperature,the impact toughness of steel increases continuously,among which the increase of ductility between 900-950 ℃ is relatively larger. It is considered that it is related to the rapid decrease of the particulate carbides distributed in strip.
Effect of normalizing treatment on microstructure and impact property of hot-rolled GCr15 bearing steel was studied. The results show that the normalizing treatment can effectively recluce the grade of network carbides in the steel,and as the normalizing temperature increases,the level of network carbides continuously decreases. However,when the normalizing temperature is 900 ℃,a large number of strips distributed granular carbides appear in the steel,which seriously destroys the homogeneity of the steel. As the normalizing temperature increases,such carbides gradually disappear,when the temperature is 950 ℃,the content of these carbides is less,and it basically disappear at 1000 ℃. The test of impact property of the steel shows that with the increase of normalizing temperature,the impact toughness of steel increases continuously,among which the increase of ductility between 900-950 ℃ is relatively larger. It is considered that it is related to the rapid decrease of the particulate carbides distributed in strip.
引文
[1]李昭昆,雷建中,徐海峰,等.国内外轴承钢的现状与发展趋势[J].钢铁研究学报,2016,28(3):1-12.Li Zhaokun,Lei Jianzhong,Xu Haifeng,et al.Current status and development trend of bearing steel in China and abroad[J].Journal of Iron and Steel Research,2016,28(3):1-12.
[2]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.Xu Lei,Chen Yu,Han Yanguang,et al.Recent research on spheroidization of GCr15 bearing steel[J].Hot Working Technology,2013,42(14):11-14.
[3]陈其伟,关建辉,朱国辉,等.GCr15钢渗碳体形核机制的研究与试验验证[J].材料热处理学报,2013,34(5):186-190.Chen Qiwei,Guan Jianhui,Zhu Guohui,et al.Study on nucleation mechanism of cementite in GCr15 steel and experimental verification[J].Transactions of Materials and Heat Treatment,2013,34(5):186-190.
[4]Xu X,Yu Z.Failure analysis of diesel engine flywheel ring-gears[J].Engineering Failure Analysis,2005,12(1):25-34.
[5]李文竹,马惠霞,黄磊,等.高碳铬轴承钢网状组织遗传性及其危害[J].金属热处理,2012,37(8):36-38.Li Wenzhu,Ma Huixia,Huang Lei,et al.Network structure heredity and harm to high carbon and chromium bearing steel[J].Heat Treatment of Metals,2012,37(8):36-38.
[6]Luzginova N V,Zhao L,Sietsma J.The cementite spheroidization process in high-carbon steels with different chromium contents[J].Metallurgical and Materials Transactions A,2008,39(3):513-521.
[7]杨洪波,赵西成,王庆娟,等.GCr15轴承钢周期球化退火工艺的改进[J].金属热处理,2012,37(5):74-76.Yang Hongbo,Zhao Xicheng,Wang Qingjuan,et al.Improvement of cyclic spheroidizing annealing process for GCr15 bearing steel[J].Heat Treatment of Metals,2012,37(5):74-76.
[8]Arruabarrena J,López B,Rodriguez-Ibabe J M.Influence of prior warm deformation on cementite spheroidization process in a low-alloy medium carbon steel[J].Metallurgical and Materials Transactions A,2014,45(3):1470-1484.
[9]Lu B H,Hua L,Han X H,et al.Microstructure evolution of GCr15 in cold ring rolling and following heat treatment[J].Materials Science and Technology,2016,32(16):1702-1711.
[10]韩斌,于宗洋,李涛.GCr15轴承钢大圆材的球化退火工艺[J].金属热处理,2015,40(1):90-93.Han Bin,Yu Zongyang,Li Tao.Spheroidizing annealing process of big size bar of bearing steel GCr15[J].Heat Treatment of Metals,2015,40(1):90-93.
[11]Zhang D,Zhou L Y,Zhang C L,et al.Network carbide inheritance during heat treatment process of large shield machine bearing steel GCr15SiMn[J].Materials Science Forum,2015,817:115-120.
[12]Li Z X,Li C S,Zhang J,et al.Microstructure of hot rolled 1.0C-1.5Cr bearing steel and subsequent spheroidization annealing[J].Metallurgical and Materials Transactions A,2016,47(7):3607-3621.
[13]Lee S,Kim S,Hwang B,et al.Effect of carbide distribution on the fracture toughness in the transition temperature region of an SA 508steel[J].Acta Materialia,2002,50(19):4755-4762.
[14]仇亚军,叶健熠,张娟娟,等.GCr15钢网状碳化物对其冲击性能的影响[J].轴承,2008(4):28-31.Qiu Yajun,Ye Jianyi,Zhang Juanjuan,et al.Influence of network carbide on impact property of steel GCr15[J].Bearing,2008(4):28-31.
[15]Hecht M D,Webler B A,Picard Y N.Digital image analysis to quantify carbide networks in ultrahigh carbon steels[J].Materials Characterization,2016,117:134-143.
[16]王家玮,杨卯生,王伯健,等.热处理对0.30C-Cr-W轴承钢组织和性能的影响[J].金属热处理,2013,38(2):48-52.Wang Jiawei,Yang Maosheng,Wang Bojian,et al.Effect of heat treatment on microstructure and mechanical properties of 0.30C-Cr-Wbearing steel[J].Heat Treatment of Metals,2013,38(2):48-52.
[17]Zhao L,Vermolen F J,Sietsma J,et al.Cementite dissolution at 860℃in an Fe-Cr-C steel[J].Metallurgical and Materials Transactions A,2006,37(6):1841-1850.
[18]胡庚祥,蔡珣,戎咏华,等.材料科学基础[M].上海:上海交通大学出版社,2010
[19]郭书玲.GCr15轴承钢碳化物液析的控制工艺探讨[J].河北冶金,2008(5):14-15.Guo Shuling.Discussion about control process for liquid separation of GCr15 bearing steel[J].Hebei Metallurgy,2008(5):14-15.
[2]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.Xu Lei,Chen Yu,Han Yanguang,et al.Recent research on spheroidization of GCr15 bearing steel[J].Hot Working Technology,2013,42(14):11-14.
[3]陈其伟,关建辉,朱国辉,等.GCr15钢渗碳体形核机制的研究与试验验证[J].材料热处理学报,2013,34(5):186-190.Chen Qiwei,Guan Jianhui,Zhu Guohui,et al.Study on nucleation mechanism of cementite in GCr15 steel and experimental verification[J].Transactions of Materials and Heat Treatment,2013,34(5):186-190.
[4]Xu X,Yu Z.Failure analysis of diesel engine flywheel ring-gears[J].Engineering Failure Analysis,2005,12(1):25-34.
[5]李文竹,马惠霞,黄磊,等.高碳铬轴承钢网状组织遗传性及其危害[J].金属热处理,2012,37(8):36-38.Li Wenzhu,Ma Huixia,Huang Lei,et al.Network structure heredity and harm to high carbon and chromium bearing steel[J].Heat Treatment of Metals,2012,37(8):36-38.
[6]Luzginova N V,Zhao L,Sietsma J.The cementite spheroidization process in high-carbon steels with different chromium contents[J].Metallurgical and Materials Transactions A,2008,39(3):513-521.
[7]杨洪波,赵西成,王庆娟,等.GCr15轴承钢周期球化退火工艺的改进[J].金属热处理,2012,37(5):74-76.Yang Hongbo,Zhao Xicheng,Wang Qingjuan,et al.Improvement of cyclic spheroidizing annealing process for GCr15 bearing steel[J].Heat Treatment of Metals,2012,37(5):74-76.
[8]Arruabarrena J,López B,Rodriguez-Ibabe J M.Influence of prior warm deformation on cementite spheroidization process in a low-alloy medium carbon steel[J].Metallurgical and Materials Transactions A,2014,45(3):1470-1484.
[9]Lu B H,Hua L,Han X H,et al.Microstructure evolution of GCr15 in cold ring rolling and following heat treatment[J].Materials Science and Technology,2016,32(16):1702-1711.
[10]韩斌,于宗洋,李涛.GCr15轴承钢大圆材的球化退火工艺[J].金属热处理,2015,40(1):90-93.Han Bin,Yu Zongyang,Li Tao.Spheroidizing annealing process of big size bar of bearing steel GCr15[J].Heat Treatment of Metals,2015,40(1):90-93.
[11]Zhang D,Zhou L Y,Zhang C L,et al.Network carbide inheritance during heat treatment process of large shield machine bearing steel GCr15SiMn[J].Materials Science Forum,2015,817:115-120.
[12]Li Z X,Li C S,Zhang J,et al.Microstructure of hot rolled 1.0C-1.5Cr bearing steel and subsequent spheroidization annealing[J].Metallurgical and Materials Transactions A,2016,47(7):3607-3621.
[13]Lee S,Kim S,Hwang B,et al.Effect of carbide distribution on the fracture toughness in the transition temperature region of an SA 508steel[J].Acta Materialia,2002,50(19):4755-4762.
[14]仇亚军,叶健熠,张娟娟,等.GCr15钢网状碳化物对其冲击性能的影响[J].轴承,2008(4):28-31.Qiu Yajun,Ye Jianyi,Zhang Juanjuan,et al.Influence of network carbide on impact property of steel GCr15[J].Bearing,2008(4):28-31.
[15]Hecht M D,Webler B A,Picard Y N.Digital image analysis to quantify carbide networks in ultrahigh carbon steels[J].Materials Characterization,2016,117:134-143.
[16]王家玮,杨卯生,王伯健,等.热处理对0.30C-Cr-W轴承钢组织和性能的影响[J].金属热处理,2013,38(2):48-52.Wang Jiawei,Yang Maosheng,Wang Bojian,et al.Effect of heat treatment on microstructure and mechanical properties of 0.30C-Cr-Wbearing steel[J].Heat Treatment of Metals,2013,38(2):48-52.
[17]Zhao L,Vermolen F J,Sietsma J,et al.Cementite dissolution at 860℃in an Fe-Cr-C steel[J].Metallurgical and Materials Transactions A,2006,37(6):1841-1850.
[18]胡庚祥,蔡珣,戎咏华,等.材料科学基础[M].上海:上海交通大学出版社,2010
[19]郭书玲.GCr15轴承钢碳化物液析的控制工艺探讨[J].河北冶金,2008(5):14-15.Guo Shuling.Discussion about control process for liquid separation of GCr15 bearing steel[J].Hebei Metallurgy,2008(5):14-15.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |