Cr12MoV冷作模具钢在深冷处理过程中的相变研究

上海金属, 2011, 33(3): 23-26. doi: 10.3969/j.issn.1001-7208.2011.03.006

Cr12MoV冷作模具钢在深冷处理过程中的相变研究

李向军 ^1, , 李绍宏 ^2, , 闵永安 ^3, , 吴晓春 ^4,

1.上海大学材料科学与工程学院,上海,200072

2.上海大学材料科学与工程学院,上海,200072

3.上海大学材料科学与工程学院,上海,200072

4.上海大学材料科学与工程学院,上海,200072

基金项目: 科技部"十一五"国家支撑项目(2007BAE51B04)

关键词： Cr12MoV冷作模具钢 , 深冷处理 , 相变 , 差示扫描量热仪 , 电阻

STUDY ON PHASE TRANSFORMATION OF CR12MOV COLD WORKING DIE STEEL DURING DEEP CRYOGENIC PROCESS

采用DSC热分析及电阻测定等物理测试手段,对Cr12MoV钢在深冷处理过程中的相变进行了研究.结果表明,经冷处理后的试样在加热过程中有更多的碳化物析出,经过-196℃深冷处理的比-79℃冷处理的析出量更多.深冷处理促使残余奥氏体进一步向马氏体转变以及碳化物析出,是提高冷作模具钢尺寸稳定性和耐磨性能的一种有效措施.

参考文献

[1]	Donaldrd .The promise of cryogenic processing[J].Machine Design,1981,53(02):73-76.
[2]	Collins D N .Deep cryogenic treatment of tool steels:a review[J].Heat Treatment of Metals,1996,2:40-42.
[3]	Dong Y.;Lin X.;Xiao H. .Deep cryogenic treatment of high-speed steel and its mechanism[J].Heat Treatment of Metals,1998(3):55-59.
[4]	Stratton P F .Optimising nano-carbide precipitation in tool steels[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,449-451(809-812)
[5]	A.Bensely;A.Prabhakaran;D.Mohan Lal .Enhancing the wear resistance of case carburized steel (En 353) by cryogenic treatment[J].Cryogenics,2005(12):747-754.
[6]	D. Mohan Lal;S. Renganarayanan;A. Kalanidhi .Cryogenic treatment to augment wear resistance of tool and die steels[J].Cryogenics,2001(3):149-155.
[7]	Shaohong Li;Lihui Deng;Xiaochun Wu .The mechanism investigation of deep cryogenic treatment on high alloy martensitic steel by low frequency internal friction[J].Cryogenics,2010(8):433-438.
[8]	Shaohong Li;Lihui Deng;Xiaochun Wu;Yong’an Min;Hongbin Wang .Influence of deep cryogenic treatment on microstructure and evaluation by internal friction of a tool steel[J].Cryogenics,2010(11/12):754-758.
[9]	Li, S.;Min, N.;Deng, L.;Wu, X.;Min, Y.;Wang, H. .Influence of deep cryogenic treatment on internal friction behavior in the process of tempering[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(3):1247-1250.
[10]	Shaohong Li;Lihui Deng;Na Min et al.Effect of deep cryogenic treatment on internal friction behavior of cold work die steel and their experimental explanation by coupling model[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2010,527(29-30):7950-7954.
[11]	仲伟深;李智超;胡庆林.深冷处理对金属材料性能的影响及机理探讨[J].阜新矿业学院学报,1989(03):77-83.
[12]	顾彪;丛吉远.深冷处理引起高速钢的性能改善与微结构变化[J].大连理工大学学报,1997(03):43-47.
[13]	丛吉远.高速钢深冷处理的组织转变及耐磨性[J].热加工工艺,1998(03):21.
[14]	林晓娉;董允;王亚红.高速钢深冷处理及其机理研究[J].金属热处理学报,1998(02):23-27.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Cr12MoV冷作模具钢在深冷处理过程中的相变研究

STUDY ON PHASE TRANSFORMATION OF CR12MOV COLD WORKING DIE STEEL DURING DEEP CRYOGENIC PROCESS

参考文献