Effects of laser treatments on cavitation erosion and corrosion of AISI 440C martensitic stainless steel

Laser surface treatments with high and low fluence were employed to induce melting and transformation hardening on 440C. While melting could bring about better improvement in corrosion resistance, transformation hardening was more effective in enhancing the cavitation erosion resistance. Compared wi...

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Bibliographic Details
Published inMaterials letters Vol. 58; no. 1; pp. 88 - 93
Main Authors Lo, K.H., Cheng, F.T., Kwok, C.T., Man, H.C.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2004
Subjects
Cavitation erosion
Corrosion
Laser surface melting
Laser transformation hardening
Corrosion
Laser surface melting
Laser transformation hardening
Cavitation erosion
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ISSN0167-577X
1873-4979
DOI10.1016/S0167-577X(03)00421-X

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Summary:Laser surface treatments with high and low fluence were employed to induce melting and transformation hardening on 440C. While melting could bring about better improvement in corrosion resistance, transformation hardening was more effective in enhancing the cavitation erosion resistance. Compared with conventional heat treatment, laser treatments resulted in higher corrosion resistance with a wide passive range in NaCl solution, and also in higher cavitation erosion resistance in both deionized water and NaCl solution.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(03)00421-X