用多孔粉末压片制备WC颗粒增强高锰钢基表面复合材料的组织观察
용다공분말압편제비WC과립증강고맹강기표면복합재료적조직관찰
The microstructural observation of the high manganese cast steel base surface composites reinforced by WC particles made by porous powder templates
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