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首页> 外文期刊>Physica, B. Condensed Matter >Influence of Ni and N on generalized stacking-fault energies in FeCrNi alloy: A first principle study
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Influence of Ni and N on generalized stacking-fault energies in FeCrNi alloy: A first principle study

机译:Ni和N对FeCrNi合金中广义堆垛层错能的影响:第一个原理研究

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摘要

The alloying effects of Ni and N were examined in terms of the generalized stacking-fault (SF) energy (GSFE). GSFE is associated with the basal plane of FeCrNi austenitic stainless steel. The GSFE profiles were obtained using first-principle calculations. The results show that Ni increases the intrinsic SF energy γ _(isf) and the unstable SF energy γ _(us). N does the opposite. However, a γ _(isf)/_γ us ratio close to zero accompanies the addition of Ni or N. This ratio implies that deformation by partial dislocation is preferred. Overall, the effect of N on FeCrNi alloys is more evident than that of Ni.
机译:根据广义堆垛层错(SF)能量(GSFE)检验了Ni和N的合金化作用。 GSFE与FeCrNi奥氏体不锈钢的基面相关。 GSFE配置文件是使用第一性原理计算获得的。结果表明,Ni增加了本征SF能量γ_(isf)和不稳定的SF能量γ_(us)。 N则相反。但是,随着Ni或N的添加,γ_(isf)/ _γus的比率接近零。该比率意味着优选由部分位错引起的变形。总体而言,N对FeCrNi合金的影响比Ni更明显。

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