利用粉末冶金法制得了板型规整的纯钼烧结坯,在轧制过程中通过热轧、温轧、冷轧、热处理、碱洗工序制备不同变形量的轧制板材。在1350℃对烧结坯进行开坯,开坯变形量为30%,热轧每道次压下量控制在20%~30%以内,温轧每道次压下量控制在10~20%以内,冷轧每道次压下量控制在10%以下。制备好后的纯钼板材试样采用X射线衍射(XRD)分析样品的宏观织构。试样尺寸为长10 mm×宽5 mm,每组样品制备3个平行试样。通过测量样品中三个不完全极坐标{110},{200},{211}来检测样品宏观织构,将不同变形条件的样品用XRD测量其织构,再用MATLAB软件分析处理数据,得到不同变形条件织构的极图(PF)、反极图(IPF)与三维取向分布函数图(ODF)。
A pure molybdenum sintered billet with a regular plate shape is prepared by powder metallurgy, and rolled plates with different deformations are prepared through hot rolling, warm rolling, cold rolling, heat treatment, and alkaline washing during the rolling process. The sintered billet is opened at 1350℃, the deformation of the billet is 30%, the reduction of each pass of hot rolling is controlled within 20%~30%, and the reduction of each pass of warm rolling is controlled within 10~20% , The reduction of each pass of cold rolling is controlled below 10%. The prepared pure molybdenum sheet sample was analyzed by X-ray diffraction (XRD) to analyze the macro-texture of the sample. The sample size is 10 mm long x 5 mm wide, and 3 parallel samples are prepared for each group of samples. The macroscopic texture of the sample is measured by measuring the three incomplete polar coordinates {110}, {200}, {211} in the sample. The texture of the sample with different deformation conditions is measured by XRD, and then the data is analyzed and processed by MATLAB software. Pole figure (PF), inverse pole figure (IPF) and three-dimensional orientation distribution function figure (ODF) of texture under different deformation conditions.