[1]王文昌,谢春洋,孔德军.激光淬火对Cr12MoV钢渗硼层摩擦与磨损性能的影响[J].常州大学学报(自然科学版),2015,(04):47-52.[doi:10.3969/j.issn.2095-0411.2015.04.009]
　WANG Weichang,XIE Chunyang,KONG Dejun.Effects of Laser Quenching on Friction and Wear Properties of Boronizied Layer on Cr12MoV Steel[J].Journal of Changzhou University(Natural Science Edition),2015,(04):47-52.[doi:10.3969/j.issn.2095-0411.2015.04.009]
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激光淬火对Cr12MoV钢渗硼层摩擦与磨损性能的影响()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2015年04期
页码:
47-52
栏目:
出版日期:
2015-11-15

文章信息/Info

Title:
Effects of Laser Quenching on Friction and Wear Properties of Boronizied Layer on Cr12MoV Steel
作者:
王文昌1; 谢春洋2; 孔德军2
1. 常州大学 石油化工学院, 江苏 常州 213164; 2. 常州大学 机械工程学院, 江苏 常州 213164
Author(s):
WANG Weichang1;  XIE Chunyang2; KONG Dejun2
1.School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; 2.School of Mechanical Engineering, Changzhou University, Changzhou 213164, China
关键词:
Cr12MoV;  渗硼层;  激光淬火;  摩擦系数;  磨损性能
Keywords:
Cr12MoV;  boronized layer;  laser quenching(LQ);  friction coefficient;  wear performance
分类号:
TN 249; TG 115.5
DOI:
10.3969/j.issn.2095-0411.2015.04.009
文献标志码:
A
摘要:
利用热浸渗法在Cr12MoV冷作模具钢表面制备了渗硼层,通过激光淬火对其进行了强化处理,并采用扫描电镜、X射线衍射仪分析了渗硼层表面形貌和激光淬火前后物相组成。通过测试摩擦系数和磨损体积比,考察了激光淬火前后渗硼层摩擦与磨损性能,对其磨损机制进行了分析。结果表明,渗硼层表面存在大量孔隙,经激光淬火后试样表面孔隙有所减少,组织更加均匀; 渗硼处理生成了FeB单相渗硼层,经激光淬火后渗硼层以FeB物相为主,产生了Fe2B、Fe-Cr和Cr2B等物相,降低了渗硼层脆性; 激光淬火后渗硼层平均摩擦系数和磨痕深度分别下降了20%和24.6%,磨损形式由剥落磨损转变为磨粒磨损,提高了渗硼层耐磨性能。
Abstract:
The boronized layer was prepared in the surface of Cr12MoV cold worked die steel with hot dip process, which was strengthened by laser quenching, the surface morphologies and phase compositions of boronized layer before and after laser quenching(LQ)were analyzed with SEM(scanning electron microscope)and XRD(X ray diffraction), respectively. Comparing the wear volume ratios and friction coefficients, the friction and wear properties of boronized layer before and after LQ were investigated, and the wear mechanism was analyzed. The results show that on the surface of boronized layer, there exists a large number of pores; the surface porosities have been reduced after LQ, and the structures become more uniform. The phase of boronized layer is FeB, after LQ the phases are composed of Fe2B, Fe-Cr and Cr2B, decreasing the brittleness of boronized layer. The average friction coefficient and wear scar depth decrease by 20% and 24.6% after LQ, and the wear form is changed into abrasive wear from delamination wear, showing that the wear performance of boronized layer has improved.

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备注/Memo

备注/Memo:
收稿日期:2015-03-07。基金项目:江苏省科技支撑计划(工业)(BE2014818)。作者简介:王文昌(1982—),男,江苏建湖人,硕士,工程师,主要从事材料表面改性处理研究。
更新日期/Last Update: 2015-10-20