Excimer laser processing of grey cast iron: Microstructural and tribological characterization

被引：2

作者：

Marest, G

Fontes, A

Jeandin, M

Fayeulle, S

Vardavoulias, M

Frainais, M

机构：

[1] CNRS, IN2P3, Inst Nucl Phys, F-69622 Villeurbanne, France

[2] Univ Lyon 1, F-69622 Villeurbanne, France

[3] Ecole Mines, Ctr Mat PM Fourt, F-91003 Evry, France

[4] Ecole Cent Lyon, F-69131 Ecully, France

[5] PSA, Peugeot Citroen, F-92366 Meudon, France

来源：

HYPERFINE INTERACTIONS | 1998年 / 112卷 / 1-4期

关键词：

Iron; Thin Film; Graphite; Carbide; Austenite;

D O I：

10.1023/A:1011016022614

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

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/cm(2) 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

页码：39 / 42

页数：4

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