摘要
Wear and corrosion resistant multi-functional Cr3Si-Cr2Ni3Si composite coatings were fabricated on substrate of an austenitic stainless steel 1Cr18Ni9Ti by laser cladding using different Cr-Si-Ni alloy powders. Microstructure, metallic dry sliding wear and electrochemical corrosion behaviors of the metal silicide matrix composite coatings were investigated as a function of the Cr3Si volume fraction. The laser clad composite coatings have a rapidly solidifed microstructure consisting of Cr3Si primary dendrites and the interdendritic Cr2Ni3Si ternary metal silicide. The volume fraction of primary Cr3Si dendrites was shown to have a remarkable influence on wear and corrosion resistance of the laser clad composite coatings. The higher the volume fraction of Cr3Si, the higher he wear and corrosion resistance of the coatings.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 162-166 |
| 页数 | 5 |
| 期刊 | Proceedings of SPIE - The International Society for Optical Engineering |
| 卷 | 4915 |
| DOI | |
| 出版状态 | 已出版 - 2002 |
| 已对外发布 | 是 |
| 活动 | Lasers in Materials Processing and Manufacturing - Shanghai, 中国 期限: 16 10月 2002 → 18 10月 2002 |
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