The coatings with varied thickness and crack-free can be obtained by multi-layer laser cladding, which will have practical significance for repairing workpieces.
多层熔覆试验能形成厚度可调的无裂纹熔覆层，对生产工件的修复具有实际意义。
The results show that the repair in the finished product of Mg based alloys is feasible by multi layer laser cladding.
结果表明，使用激光多层涂敷的办法修复镁合金成品件是可行的。
The influence of the crystal orientation of the substrate on microstructure is investigated by multi layer laser cladding with the powder of nickel base superalloy.
采用镍基合金粉，研究了激光多层涂覆过程中基材晶体取向对涂层凝固组织的影响规律。
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