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。
A new precision measuring and calculating method about weighted factor ζ（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）=IIs（（hhkkll））/i∑=n1II（s（hhkkll））imj∑=-1241π80R°2.tg-1tgP2jtg（Pj2-αj）tg（Pj2-βj）tgPj2-γj/SB].The numerical value of ζ（hkl） calculated by LG method no longer contains the systematic error resulted by the approximated processing. The experiment results of Al-Mg-Se-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.
出处
《理化检验（物理分册）》
CAS
2007年第1期19-22,共4页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
反极图
加权因子
系统误差
Inverse pole figure
Weighted factor
System error
