Process Characterization of 40Cr Steel Roller by Laser Surface Alloying with Rare Earths Oxide Y2O3

Abstract:

Article Preview

To increase the mechanical properties of the metal rollers, Mo and Mo+Y2O3 alloy powders were designed. And a kind of coating fabricated by a continuous wave CO2 laser surface alloying(LSA) on 40Cr steel roller was obtained. The effect of Mo and Mo+Y2O3 on microstructure, hardness and wearing resistance of alloying coating were studied by OM, SEM, XRD, microhardness tester and wearing tester. The experimental results indicate that the grain size in alloying coating is obviously fined, and the grain boundary is strengthened. The uniformity and density of microstructure are improved. The microhardness and wear resistance of alloying coating are significantly increased.

Info:

Periodical:

Advanced Materials Research (Volumes 295-297)

Edited by:

Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu

Pages:

520-526

DOI:

10.4028/www.scientific.net/AMR.295-297.520

Citation:

A. Q. Wu et al., "Process Characterization of 40Cr Steel Roller by Laser Surface Alloying with Rare Earths Oxide Y2O3", Advanced Materials Research, Vols. 295-297, pp. 520-526, 2011

Online since:

July 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.