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		电子束快速成形制备TC4合金的组织和拉伸性能分析
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			Microstructure and Tensile Property of TC4 Alloy Produced via Electron Beam Rapid Manufacturing
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| 图2. EBRM制备TC4合金X-Z面的OM像 | 
| Fig.2. OM images of substrate and bottom (a), and top (b) of the TC4 alloy produced by EBRM in the X-Z plane (Inset show the high magnified image of square area) | 
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