原子核物理评论
原子覈物理評論
원자핵물리평론
Nuclear Physics Review
2005年
1期
106-109
,共4页
晶界浓度%偏析子与诱发子%基体效应
晶界濃度%偏析子與誘髮子%基體效應
정계농도%편석자여유발자%기체효응
grain boundary concentration%inducing and segregating specie%bulk effect
利用双粒子模型研究微量元素锆(Zr)的基体效应对Ni3Al-x atoms % Zr晶界内聚性的影响.模型显示, x[锆(Zr)的基体浓度]从0.1增加到0.5, 在晶界Zr富集是增加的; Ni富集和Al贫乏在x=0.3时趋于最大.模型还显示, Ni3Al-x atoms % Zr晶界的内聚性在x=0.3时为最佳.
利用雙粒子模型研究微量元素鋯(Zr)的基體效應對Ni3Al-x atoms % Zr晶界內聚性的影響.模型顯示, x[鋯(Zr)的基體濃度]從0.1增加到0.5, 在晶界Zr富集是增加的; Ni富集和Al貧乏在x=0.3時趨于最大.模型還顯示, Ni3Al-x atoms % Zr晶界的內聚性在x=0.3時為最佳.
이용쌍입자모형연구미량원소고(Zr)적기체효응대Ni3Al-x atoms % Zr정계내취성적영향.모형현시, x[고(Zr)적기체농도]종0.1증가도0.5, 재정계Zr부집시증가적; Ni부집화Al빈핍재x=0.3시추우최대.모형환현시, Ni3Al-x atoms % Zr정계적내취성재x=0.3시위최가.
Monte Carlo simulation with the energetics described by the embedded atom method has been employed to calculate dependence of the grain boundary cohesion on the Zr bulk atom concentration, for the Ni3Al-x % Zr (100%Ni100%Ni)[001]/Σ5(210)/36.87?symmetric tilt grain boundary, at the equilibrium. Calculations show that when x (the Zr bulk atom concentration) increases from 0.1 to 0.5, the Zr enrichment increases, both the Ni enrichment and the Al depletion maximizes at x=0.3. The calculations also show the best cohesion of the grain boundary at x=0.3.
