Impact wear behavior of laser hardened hypoeutectoid 2Cr13 martensite stainless steel

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)444-455
Journal / PublicationWear
Volume255
Issue number1-6
Publication statusPublished - Aug 2003

Abstract

Impact assessment for laser hardened hypoeutectoid 2Cr13 martensite stainless steel was carried out on a specifically developed ball-on-flat impact tester. Results showed better impact behavior of 2Cr13 surfaces treated by a continuous wave CO2 laser than those under conventional heat treatment. Micro-hardness measurement demonstrated that the surface hardness of the laser treated specimens varied with the operation parameters of laser hardening. Scanning electron microscope (SEM) analysis and surface profile measurement suggested that the size of the impact wear scars of 2Cr13 specimens decreases with the increase of the surface hardness. EDX analysis showed that the oxidation resistance of the laser-hardened surfaces was relatively superior to their conventionally heat-treated counterparts. Compared with conventionally-treated 2Cr13 steel, the superior impact wear resistance of laser surface-processed steel was attributed both to grain refinement and to the higher martensite content near the surface that resulted from rapid cooling. © 2003 Published by Elsevier B.V.

Research Area(s)

  • 2Cr13 stainless steel, Impact wear, Laser hardening

Citation Format(s)

Impact wear behavior of laser hardened hypoeutectoid 2Cr13 martensite stainless steel. / Tianmin, Shao; Meng, Hua; Yuen, Tam Hon.

In: Wear, Vol. 255, No. 1-6, 08.2003, p. 444-455.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review