采用蔚仪试验器械制造有限公司生产的MP-2B型磨抛机，将多向锻造后的纯钼试样分别经过400#、600#、800#、1000#、1200#、1500#、2000#的金相砂纸打磨后，再采用金刚石抛光剂抛光，随后采用2.3 g NaOH+2.6 g K3[Fe(CN)6]+20 mL去离子水配置腐蚀液，将抛光好的试样在腐蚀液中腐蚀180 s后立即用酒精+清水冲洗，随后冷风吹干，随后在德国徕卡仪器有限公司生产的Leica DMIL LED型金相显微镜下观测其金相组织。

Using the MP-2B grinding and polishing machine produced by Weiyi Testing Equipment Manufacturing Co., Ltd., the pure molybdenum samples after multi-directional forging were respectively passed through 400#, 600#, 800#, 1000#, 1200#, 1500#, 2000# After polishing the metallographic sandpaper, use diamond polishing agent to polish, then use 2.3 g NaOH+2.6 g K3[Fe(CN)6]+20 mL deionized water to configure the etching solution, and put the polished sample in the etching solution Rinse with alcohol + water immediately after corrosion for 180 s, then dry it with cold air, and observe its metallographic structure under the Leica DMIL LED metallurgical microscope produced by Leica Instruments Co., Ltd. in Germany.