摘要
在MRH-3型高速环块磨损试验机上研究了粉末冶金方法制备的316L不锈钢／Y-PSZ金属陶瓷复合材料在干摩擦条件下的摩擦磨损性能，并与T10钢（HRC45）的耐磨性能进行了对比．考察了316L不锈钢体积分数（30％～50％）、颗粒尺寸（10．8～51．6μm）及对偶环转速（200～280r·min^-1）对材料耐磨性的影响．结果表明：随着316L不锈钢含量的增加和颗粒尺寸的增大，或随着对偶环转速的提高，复合材料的耐磨性下降．在本文研究条件下，除个别情形外，所制备316L／Y-PSZ复合材料的耐磨性能优于T10钢；当不锈钢体积分数为30％、颗粒尺寸为10．8Ⅱm时，复合材料的耐磨性能达到T10钢的3．0～3．2倍．316L不锈钢／Y-PSZ复合材料的磨损机理主要为316L不锈钢颗粒剥落和Y-PSZ基体层片剥落．
The friction wear behaviors of 316L stainless steel/Y-PSZ （partially yttria-stabilized zirconia） metal-ceramics compos- ites fabricated by means of powder metallurgy were evaluated under dry-sliding condition on a high-speed block-on-ring contact wear test machine MRH-3, and were contrasted to those of T10 steel （HRC 45）. The effects of the volume fraction （30% -50%） and particle size （ 10.8-51.6μm） of 316L and the rotary speed （200-280 r·min^-1） of the friction ring on the wear resistance of 316L/ Y-PSZ composites were investigated. The results show that the wear resistance of the composites decrease with the increase of 316L content and particle size, or with the increase of the rotary speed of the friction ring. The wear resistance of fabricated 316L/Y-PSZ composites is better than that of T10 steel under the experimental conditions in this work except for few cases. Furthermore, the wear resistance of the fabricated 316L/Y-PSZ composites with a 316L volume fraction of 30 % and a 316L particle size 10.8μm is 3.0-3.2 times as large as that of T10 steel under the experimental conditions in this work. The abrasion mechanism of 316L/Y-PSZ composites is mainly composed of the desquamation of 316L particles and the delamination of Y-PSZ matrix.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2008年第7期740-745,共6页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.59671025)
