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张德荣
金属学报
实验数据显示,钛板在平行和垂直轧制方向上的屈服应力和R值有如下的关系:若某一方向的R值比另一方向的大,则此方向上的屈服应力也比另一方向的高。本文根据塑性理论导出了一个公式,试图从理论上对此关系加以描述。统计处理表明,此式与实验数据吻合良好,并对此式的适用范围和应用价值进行了简短的讨论。
关键词: 钛板 , yield stress , R-value
ZHANG Derong Shenyang Institute of Aeronautical Engineering , Shenyang , China ZHANG Derong Associate Professor.Dept.of Aeronautics , Shenyang Institute of Aeronautical Engineering , Shenyang 110031 , China
金属学报(英文版)
An attempt was made on the quantitative prediction of the relationship hetween the yield stress and R-value along the parallel and perpendicular to the rolling direction of Ti plate based on analysis of the previous experimental data.It is shown that the yield stress along one direction and another is quite synchronized with the R—value.According to the plasticity theo- ry,an formular of σ_(1s)/σ_(2s)=[(1+1/R_2)/(1+1/R_1)/~(1 2) was proposed,In statistic estima- tion.the calculated results are in good agreement with the experimental data.The availability of this formula was briefly discussed also.
关键词: titanium plate , null , null
