Excimer Laser Processing of Grey Cast Iron: Microstructural and Tribological Characterization

被引：0
|
作者：
G. Marest
A. Fontes
M. Jeandin
S. Fayeulle
M. Vardavoulias
M. Frainais
机构：
[1] IN2P3-CNRS et Université Claude Bernard Lyon I,Institut de Physique Nucléaire de Lyon
[2] Ecole des Mines,undefined
[3] Centre des Matériaux P.M. Fourt,undefined
[4] Ecole Centrale de Lyon,undefined
来源：
Hyperfine Interactions | 1998年 / 112卷
关键词：
Iron; Thin Film; Graphite; Carbide; Austenite;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Pearlitic grey iron was treated by means of a XeCl laser to remelt only a shallow layer. This process allows to modify the heteregeneous surfaces of cast irons in order to improve their tribological behaviour. The energy density ranged from 0.3 to 3 J/cm2 and the number of shots from 4 to 40. It is shown that after laser irradiation austenite is formed in the melted layer; compressive stresses at the surface were exhibited as well as the deposition of graphite and the formation of carbides. It is shown that excimer laser processing highly decreases the coefficient of friction and the wear rate.
引用
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页码：39 / 42
页数：3
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