摘要
用光学金相显微镜、扫描电子显微镜、X射线衍射(XRD)仪及显微硬度计对经气体渗氮处理的2Cr13钢试样进行了组织结构分析,并利用销-盘摩擦磨损试验机对渗氮的盘与未渗氮销摩擦副进行摩擦磨损试验。结果表明,520℃×20 h渗氮可使2Cr13马氏体不锈钢的渗氮层深度达到165μm,处理后试样的显微硬度约为处理前的2.5倍。处理后试样的耐磨性能得到了较大的提高,渗氮盘试样的磨损表面未出现裂纹,而未渗氮销的磨损表面存在严重的裂纹。
The microstructure of 2Cr13 steel samples after gas nitriding was analyzed with optical microscopy, SEM, XRD and microhardness tester. Wear behavior of the gas nitrided 2Cr13 steel disk against unitrided 2Cr13 pins was investigated using a pin-on-disk type tribometer. The results show that gas nitriding at 520℃ for 20 h can obtain the nitrided depth of 2Cr13 steel up to 165μm. The microhardness of samples after nitriding increased by 2. 5 times compared with unitrided samples. The wear resistance of samples are increased significantly after nitriding. It is observed that there are no cracks appearing on the worn surfaces of nitrided 2Cr13 disks while severe cracks are appearing on the worn surfaces of unitrided 2Cr13 pins.
出处
《金属热处理》
CAS
CSCD
北大核心
2009年第7期16-18,共3页
Heat Treatment of Metals
关键词
2CR13钢
气体渗氮
渗氮层
耐磨性
2Cr13 steel
gas nitriding
nitrided layer
wear resistance
作者简介
杨剑群（1976-），女，黑龙江齐齐哈尔人，在渎博士，主要从事材料表面改性及摩擦磨损行为研究，发表论文3篇。联系电话：0451-86412462，E-mail：yahg0903@gmail．com
