The microstructure evolving and element transport of Ni-based laser-cladding layer in supercritical water
The microstructure evolving and element transport of Ni-based laser-cladding layer in supercritical water
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DOI：
10.1016/j.corsci.2022.110112
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发表时间：
2022-01
影响因子：
8.3
通讯作者：
Lu Ren;Yun Ding;Yanhai Cheng;Jing Nong;Shuai Wang;Shicheng Wang;Dongyang Zhang;Q. Qin
中科院分区：
文献类型：
--
作者：
Lu Ren;Yun Ding;Yanhai Cheng;Jing Nong;Shuai Wang;Shicheng Wang;Dongyang Zhang;Q. Qin
To improve the oxidation resistance of the low-cost materials in supercritical water (SCW), the mild steel surface was laser cladded with Ni-based alloy powder. The oxidation behavior of coated material was investigated in SCW. Consequently, because of the constrained melting and solidification, extensive microstructure changes. Crystals in different regions are transformed into equiaxed crystals, which enhances the interatomic bonding strength of the solid solution. Additionally, the Ni-based cladding layer has an observable growth direction near the fusion line and the oxidation reactions could be inhibited by the formed NiO and (Cr, Ni) solid solution.
