Paper Title:

The Influence of Laser Hardening on the Microstructure and Wear Resistance of Disk Opener

Periodical Advanced Materials Research (Volumes 97 - 101)
Main Theme Manufacturing Science and Engineering I
Edited by Zhengyi Jiang and Chunliang Zhang
Pages 1497-1501
DOI 10.4028/www.scientific.net/AMR.97-101.1497
Citation Hao Sun et al., 2010, Advanced Materials Research, 97-101, 1497
Online since March, 2010
Authors Hao Sun, Gang Ling, Hong Wen Li, Yan Bo Su, Shao Ping Xiong, Hai Rong Yao
Keywords Abrasive Wear Behavior, Disk Opener, Laser Hardening
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Abstract

The microstructure and properties of hardened layer of 45 steel disk opener with a variety of parameters of HLD1001.5 solid-state laser were studied by SEM, Rockwell hardness tester and wear tester. The results showed that under the conditions of the laser power from 400W to 600W, the hardened layer is composed of melted zone, phase transformation zone and heat affected zone, and the hardness is up to 58.5-61HRC, and the disk openers have excellent wear resistance after the laser hardening, which is best in the disk opener with the treatment of laser power 500W.