【摘要】 提出了一种测算Harris-Mueller反极图制作过程中加权因子ξ(hkl)的非近似方法(LG法)。用这种方法计算(hkl)极点轴密度P(hkl)的表达式为P(hkl)=IIs((hhkkll))/i∑=n1II(s(hhkkll))imj∑=-1241π80R°2.tg-1tgP2jtg(Pj2-αj)tg(Pj2-βj)tgPj2-γj/SB。与传统的各种测算ξ(hkl)的近似方法不同,该表达式的求解不涉及到任何近似假设,因此LG法测算的ξ(hkl)值中不再含有近似处理所导致的系统误差。Al-Mg-Sc-Zr合金板材反极图测算实验结果表明,由LG法所测算的H-M反极图精度显著地高于各种现行的近似方法。更多还原

【Abstract】 A new precision measuring and calculating method about weighted factor ξ_（hkl） during preparation of Harris-Mueller inverse pole figure is presented in this paper.The calculation formula obtained by using this kind of method is as following P_（hkl）=I_（hkl）[]I_s（hkl）/∑n[]i=1I_（hkl）i[]I_s（hkl）∑m-2[]j=14πR²[]180°tg^-1tgP_j[]2tg（P_j-α_j）[]2tg（P_j-β_j）[]2tgP_j-γ_j[]2/S_B.The numerical value of ξ_（hkl） calculated by LG method no longer contains the systematic error resulted by the approximated processing.The experiment results of Al-Mg-Sc-Zr alloy plate show that the precision of H-M inverse pole figure calculated by LG method has the obvious superiority over other current approximated methods.更多还原