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本文采用解方程的方法,计算了S,Se,Te三元素在α-Ti中的最大固溶度C_α的变化规律,并建立了相应的方程式。计算表明,所建立的方程式也适用于Po,算得Po的C_α=0.21(at.-%),原子实有效电荷z~*=5.26。此外,还根据C_β与C_α的关系估算了S,Se,Te,Po在β-Ti中的最大固溶度C_β分别为0.13,0.24,0.29,0.32(at.-%)。VIA族元素在Ti中的最大固溶度的变化,受该族元素的非金属性及原子半径差的控制,主要控制因素是非金属性。C_α,C_β与△x,△z/r_k,△z/r_(cov),z~*/r_k,z~*/r_(cov)及原子半径差△r有良好的线性关系;C_α和C_β随上述参数的增加呈线性降低。
In this paper, by using the method of solving equations, the variation law of the maximum solid solubility C_α of S, Se, Te in α-Ti was calculated and the corresponding equation was established. The calculation shows that the established equation is also suitable for Po, which is calculated as Po = 0.21 (at .-%) and the effective atomic charge z ~ * = 5.26. In addition, based on the relationship between C_β and C_α, the maximum solubles C_β of β-Ti, S, Se, Te and Po were estimated as 0.13,0.24,0.29,0.32 (at .-%). The variation of the maximum solid solubility of Group VIA elements in Ti is controlled by the non-metallicity and atomic radius difference of the group of elements. The main controlling factor is nonmetallicity. C_α and C_β have a good linear relationship with Δx, Δz / r_k, Δz / r_ (cov), z ~ * / r_k, z ~ * / r_ (cov) and atomic radius difference △ r The above parameters increase linearly.