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316L不锈钢氮离子注入层的高温摩擦磨损特性
引用本文:白彬,陈元儒,等.316L不锈钢氮离子注入层的高温摩擦磨损特性[J].摩擦学学报,2001,21(2):94-97.
作者姓名:白彬  陈元儒
作者单位:1. 中国工程物理研究院,
2. 西南交通大学 表面工程及摩擦学研究中心,
基金项目:中国工程物理研究院科学技术基金!资助 ( 990 3 4 0 )
摘    要:考察了316L奥氏体不锈钢高温氮离子注入层的摩擦磨损性能,并分析了其组织结构。结果表明:在相同注入工艺条件下,高温注入后的含氮层深度较常温注入下的提高约10倍;在150~460℃下注入处理时,在距离注入层表面大约40nm深度内的组织结构与注入温度有关,含氮层主要以膨胀奥氏体组织为主;由于膨胀奥氏体、CrN和微晶组织等对含氮层的强化作用,使显微硬度显著提高,摩擦系数明显下降,耐磨性能得到改善;460℃下注入处理后试样的摩擦系数较150℃下处理后的略高,而前者的耐磨性明显较高。

关 键 词:316L不锈钢  离子注入  摩擦磨损性能
文章编号:1004-0595(2001)02-0094-04
修稿时间:2000年4月20日

Friction and Wear Characteristics of 316L Stainless Steel Implanted with Nitrogen at Elevated Temperature
BAI Bin,ZHANG Peng cheng,ZOU Jue sheng,ZHU Min hao,CHEN Yuan ru.Friction and Wear Characteristics of 316L Stainless Steel Implanted with Nitrogen at Elevated Temperature[J].Tribology,2001,21(2):94-97.
Authors:BAI Bin  ZHANG Peng cheng  ZOU Jue sheng  ZHU Min hao  CHEN Yuan ru
Abstract:The microstructure and tribological properties of 316L stainlesssteel implanted with nitrogen at elevated temperature have been investigated. As the results, the depth of the N-containing layer of 316L stainless steel implanted at elevated temperature is nearly 11 times of that implanted at ambient temperature. The N-containing layer of about 40 nm thick on the stainless steel surface implanted from 150 ℃ to 460 ℃ is mainly composed of expanding austenite that strengthens the surface layer. Thus the microhardness and wear resistance of the surface layer of stainless steel implanted from 150 ℃ to 460 ℃increases significantly, while the friction coefficient in dry sliding decreases greatly. Though the friction coefficient for the specimen implanted at 460 ℃ is a little bit higher than that implanted at 150 ℃, the former shows higher wear resistance due to the formation of a strengthening layer over 2 μm thick.
Keywords:L stainless steel  ion implantation  friction and wear behavior
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