| Wear resistance and hot corrosion behaviour of laser cladding Co-based alloy |
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| 作者姓名： | 张松 张春华 吴维 文効忠 王茂才 |
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| 作者单位： | 1. School of Materials Science and Engineering，Shenyang Polytechnic University，Shenyang 110023，P.R.China; 2. State Key Laboratory for Corrosion and Protection of Meta |
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| 基金项目： | ProjectsupportedbytheStateKeyLaboratoryforCorrosionandProtectionofMetals |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＤｕｒｉｎｇｔｈｅｏｐｅｒａｔｉｏｎｏｆｇａｓｔｕｒｂｉｎｅｓ ,ｔｈｅｔｅｍ ｐｅｒａｔｕｒｅｉｎｓｉｄｅｔｈｅｔｕｒｂｉｎｅｃａｎｒｅａｃｈ 90 0～ 10 0 0℃ｏｒａｂｏｖｅ.Ｕｓｕａｌｌｙｔｈｅｃｏｍｐｏｎｅｎｔｓｉｎｔｈｅｈｏｔ ｇａｓ ｐａｔｈｗｉｌｌｓｕｆｆｅｒｃａｔａｓｔｒｏｐｈｉｃｓｕｒｆａｃｅａｔｔａｃｋｋｎｏｗｎａｓｈｏｔｃｏｒｒｏｓｉｏｎｏｒｓｕｌｐｈｉｄａｔｉｏｎ .Ｓｏｔｈｅａｌｌｏｙｓｕｓｅｄａｓｔｈｅｔｕｒｂｉｎｅｃｏｍｐｏｎｅｎｔｎｅｅｄｔｏｂｅｈ…
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Wear resistance and hot corrosion behaviour of laser cladding Co-based alloy |
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| ZHANG Song ,ZHANG Chun hua,MAN Hau chung WU Wei tao,WANG Mao cai.Wear resistance and hot corrosion behaviour of laser cladding Co-based alloy[J].Transactions of Nonferrous Metals Society of China,2001(6). |
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| Authors: | ZHANG Song ZHANG Chun hua MAN Hau chung WU Wei tao WANG Mao cai |
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| Affiliation: | ZHANG Song 1,2,ZHANG Chun hua,MAN Hau chung WU Wei tao,WANG Mao cai |
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| Abstract: | Cr13 stainless steel was surface cladded with Co based alloy using a high power carbon dioxide laser. The microstructure, wear resistance and corrosion properties of the clad layer were investigated. It is found that the high temperature corrosion behavior and wearing resistant property of the clad layer are 3 and 2.5 times higher than those of the parent metal. Under the high temperature molten lead sulphate salt corrosion condition, the clad layer fails by spalling which is caused by intergrannular corrosion within the clad layer. The fine dendritic structure and the oxide help to retard the penetration of the sulphur ion that induces the intergrannular corrosion. |
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| Keywords: | laser cladding Co based alloy wear resistance hot corrosion |
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