| Laser multi-layer cladding of Mg-based alloys |
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| 作者姓名： | 陈长军 王东生 王茂才 |
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| 作者单位： | State Key Laboratory for Corrosion and Protection of Metals，Institute of Metal Research，Chinese Academy of Sciences，Shenyang 110016，China，State Key Laboratory for Corrosion and Protection of Metals，Institute of Metal Research，Chinese Academy of Sciences，Shenyang 110016，China，State Key Laboratory for Corrosion and Protection of Metals，Institute of Metal Research，Chinese Academy of Sciences，Shenyang 110016，China |
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| 基金项目： | Project( 0 0 0 40 6 )supportedbyShenyangLimingAero engineGroupCorporationAVIVI |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＭｇ ｂａｓｅｄａｌｌｏｙｓｈａｖｅｗｉｄｅａｐｐｌｉｃａｔｉｏｎｉｎａｉｒｐｌａｎｅａｎｄａｕｔｏｍｏｂｉｌｅｉｎｄｕｓｔｒｙｂｅｃａｕｓｅｏｆｌｏｗｄｅｎｓｉｔｙａｎｄｈｉｇｈｓｐｅｃｉｆｉｃｓｔｒｅｎｇｔｈａｎｄｓｐｅｃｉｆｉｃｍｏｄｕｌｕｓ1] .Ｈｏｗｅｖｅｒ,ｔｈｅｙｈａｖｅｐｏｏｒｅｎｖｉｒｏｎｍｅｎｔａｌｐｅｒｆｏｒｍａｎｃｅａｎｄｍｅｃｈａｎｉｃａｌｐｒｏｐｅｒｔｉｅｓ .ＴｈｅｅｘｔｒｅｍｅｐｏｓｉｔｉｏｎｏｆＭｇ ｂａｓｅｄａｌｌｏｙｓｉｎｔｈｅｅｌｅｃ…
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Laser multi-layer cladding of Mg-based alloys |
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| CHEN Chang-jun,WANG Dong-sheng,WANG Mao-cai.Laser multi-layer cladding of Mg-based alloys[J].Transactions of Nonferrous Metals Society of China,2003,13(1). |
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| Authors: | CHEN Chang-jun WANG Dong-sheng WANG Mao-cai |
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| Abstract: | By laser multi-layer cladding using a pulsed Nd-YAG irradiation the thickness of the cladding zone Mg-based alloys(ZM2 and ZM5) can reach about 1. 0 mm. The microstructure of the substrate and the cladding zone wasstudied using optical microscope, scanning electron microscopy(SEM), X-ray diffractometry(XRD) and micro hard-ness analysis. It is observed that constituent of ZM5 alloy is δ+Mg17 Al12, that of ZM2 alloy is α+MgZn+Mg9Ce.That of cladding layer ZM2 alloy(L-ZM2) is Mg+ Mg2 Zn11 +MgCe; while that of the cladding layer ZM5 alloy(L-ZM5) is Mg+Mg32 (Al, Zn)49. The hardness of the cladding area can be increased to values above HV127. Veryfine uniform microstructure and the produced new phases of nanometer/sub-micrometer order were obtained. Now,many repaired Mg-based alloy components have been passed by flying test in outside field. |
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| Keywords: | laser multi-layer cladding Mg-based alloys microstructure repairing |
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