Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1573674 | Materials Science and Engineering: A | 2016 | 10 Pages |
Abstract
The microstructure evolution on the rolling surface of GCr15 steel subjected to rolling-sliding and pure rolling contact loading was systematically investigated. Experimental results showed that the pearlite structure of the surface layer in the rolling-sliding sample transformed into nanocrystalline α-Fe-C alloy in which cementite underwent severe decomposition while the pearlite lamellae appeared unperturbed in the pure rolling sample. A white etching layer (WEL) was also detected in the surface of the rolling-sliding sample. The WEL formation was found to be due to cyclic shear plastic deformation instead of frictional heating. A surface layer of Fe3O4 was detected in the pure rolling samples. Microhardness depth profiles of the rolling-sliding and pure rolling samples also showed different trends.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Hu Chen, Chi Zhang, Wenbo Liu, Qiuhan Li, Hao Chen, Zhigang Yang, Yuqing Weng,