烧结钼板经多道次热轧至不同的厚度，热轧变形量分别为42%、66%、71%、76%、81%、86%。经不同变形量热轧后的钼板在1200℃退火1h后，进行纵截面金相组织观察、EBSD分析。金相组织采集方案：试样经过机械磨削和抛光成平整、光亮、无磨痕或抛光划痕的镜面，采用10-20%的氢氧化钠+铁氰化钾混合液（氢氧化钠与铁氰化钾质量比为1:1）对样品进行腐蚀，腐蚀后的样品在金相显微镜下进行组织观察。EBSD采集方案：首先对样品表面进行机械研磨和抛光，然后在25%高氯酸和75％的酒精混合溶液中，以10±2 V的电压和45±5 A的电流进行电解抛光，持续时间为120-300 s。通过EDAX配置的电子背散射衍射（EBSD）进行测量。

The sintered molybdenum sheet is hot-rolled to different thicknesses in multiple passes, and the hot-rolling deformation amounts are 42%, 66%, 71%, 76%, 81%, 86%, respectively. After the molybdenum plate hot-rolled with different deformations was annealed at 1200℃ for 1h, the longitudinal section metallographic structure observation and EBSD analysis were carried out. Metallographic structure collection scheme: The sample is mechanically ground and polished into a smooth, bright, and non-abrasive or polished mirror surface, using a 10-20% sodium hydroxide + potassium ferricyanide mixture (sodium hydroxide and potassium ferricyanide) The mass ratio of potassium ferricyanide is 1:1) The samples are corroded, and the corroded samples are observed under a metallurgical microscope. EBSD collection scheme: first mechanically grinding and polishing the surface of the sample, and then electropolishing in a mixed solution of 25% perchloric acid and 75% alcohol at a voltage of 10 ± 2 V and a current of 45 ± 5 A, duration It is 120-300 s. Measured by electron backscatter diffraction (EBSD) configured by EDAX.