Laser in-situ synthesis of mixed carbide coating on steel

被引：76

作者：

Singh, A ^{[1
]}

Dahotre, NB ^{[1
]}

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Ctr Laser Applicat, Knoxville, TN 37996 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2004年 / 39卷 / 14期

关键词：

D O I：

10.1023/B:JMSC.0000034149.95969.bc

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A 2.5 KW Nd:YAG laser was employed to modify the surface of a AISI 1010 steel deposited with a precursor powder mixture of Fe, Ti, Cr and C. In-situ formation of TiC and chromium carbides [M7C3 (M = Fe, Cr) and Cr7C3] was observed as function of laser processing power at constant scan speed. Although TiC was present in all the samples, the chromium carbides were absent in samples processed at certain laser powers. Corresponding to this behavior, variation in mechanical properties of the coating was observed. The hardness and wear properties of the samples without chromium carbides was inferior in comparison to samples with both TiC and chromium carbides. (C) 2004 Kluwer Academic Publishers.

引用

页码：4553 / 4560

页数：8

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