Precise analysis method for cubic system material texture
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摘要: 為了解決由于織構漫散度給織構分析帶來的估算誤差,以達到對材料織構進行更為精確的分析,采用從極圖求算ODF(orientation distribution function)中的"二步法"作為基本原理,選擇以1°為最小間隔單位劃分歐拉空間,對歐拉空間所有取向點的取向密度進行了求算,并建立了相應的分析系統.利用該分析系統對鞍鋼生產的IF鋼冷軋和退火樣品進行了計算,并與已成熟的以歐拉角5°為最小間隔單位的ODF求算系統對比.結果表明:以歐拉角1°為最小單位的ODF取向密度分析系統比以歐拉角5°為最小單位的ODF取向密度分析能更確切地表示織構的分布情況.Abstract: The two-step method of calculating ODF (orientation distribution function) from pole figure as the basic principle was used to precisely analyze cubic system material texture. The Euler space was divided by 1° minimum unit. All of the divided spot's orientation density were calculated all over the orientation space. In addition, the corresponding analysis system was established. By means of the analysis system the textures of coldrolled and annealed IF steel specimens produced by Angang were calculated and were compared those with the sophisticated ODF calculation system by the Euler angle 5° minimum unit. The results show that the analysis system by the Euler angle 1° minimum unit can more exactly express the texture distribution than by the 5° minimum unit.
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Key words:
- texture /
- cubic system /
- analysis of ODF /
- IF steel sheet
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