论文标题
在纯ni中跨谷物和双边界滑动的标准
Criteria for slip transfer across grain and twin boundaries in pure Ni
论文作者
论文摘要
通过滑动痕量分析，研究了晶界处的滑动转移和退火双边界。滑移转移或阻塞以$> $ 200的边界进行评估，并与几何标准有关，这些标准建立了整个边界的活动滑移系统之间的对齐。发现滑动转移主要发生在低角度的常规晶界，而光泽 - 莫里斯参数$> $ 0.8代表评估滑动传递的最佳标准。在连贯或不一致的双边界的情况下，当残留的汉堡矢量通过脱位交叉滑移接近零时，就会发生滑动转移。
Slip transfer at grain boundaries and annealing twin boundaries was studied in polycrystalline Ni by means of slip trace analysis. Slip transfer or blocking was assessed in $>$ 200 boundaries and was related with geometrical criteria that establish the alignment between the active slip systems across the boundaries. It was found that slip transfer mainly occurs at low-angle regular grain boundaries and that a Luster-Morris parameter $>$ 0.8 stands for the best criterion to assess slip transfer. In the case of coherent or incoherent twin boundaries, slip transfer occurs when the residual Burgers vector is close to zero through dislocation cross-slip.
