Experimental study -: Control of defects during laser surface alloying

被引：12

作者：

Goswami, GL ^{[1
]}

Kumar, D

Grover, AK

Pappachan, AL

Totlani, MK

机构：

[1] Bhabha Atom Res Ctr, Atom Fuels Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Mat Proc Div, Bombay 400085, Maharashtra, India

来源：

SURFACE ENGINEERING | 1999年 / 15卷 / 01期

关键词：

D O I：

10.1179/026708499322911674

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser surface alloying is a new and promising technique for generating surface alloys having a wide range of favourable properties. The process involves altering the surfaces of inexpensive substrates by adding small quantities of alloying elements to a pool of molten metal produced by local melting using the intense heat of a laser. Certain defects such as cracks, porosity, surface roughness, compositional inhomogeneity, and excessive dilution have been observed during laser alloying (pulsed Nd:YAG laser) with chromium on mild steel, and with molybdenum and Ni-Mo on stainless steel. Specific deterioration in surface properties has been observed and discussed and the techniques utilised to control such defects have been outlined. (C) 1999 IoM Communications Ltd.

引用

页码：65 / 70

页数：6

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