THE CHROMIUM EQUIVALENTS OF SELECTED ELEMENTS IN AUSTENITIC STAINLESS-STEELS
THE CHROMIUM EQUIVALENTS OF SELECTED ELEMENTS IN AUSTENITIC STAINLESS-STEELS
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DOI：
10.1007/bf02649220
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发表时间：
1994-12-01
影响因子：
2.8
通讯作者：
ANTIA, DP
中科院分区：
文献类型：
--
作者：
RAGHAVAN, V;ANTIA, DP
利用已有的Fe-Cr-Ni系热力学描述，计算了Fe-Cr-Ni-X四元系的奥氏体铁素体平衡，其中X是铁素体稳定元素。结果被认为是可靠的，特别是对于少量的X。根据计算的平衡，已经推导出了一些铁氧体稳定剂Al、Mo、Nb、Si、Ti、V和W的铬当量。它们与已知的实验范围显示出令人满意的一致性。热力学计算的特点是，铬当量被建立为退火温度和镍含量的函数，而不是在不同实验条件下得到的经验图中所报告的固定值。
Using the well-established thermodynamic description of the Fe-Cr-Ni system, we have computed-the austenite-ferrite equilibrium in Fe-Cr-Ni-X quaternary systems, where X is a ferrite-stabilizing element. The results are considered reliable, especially for small additions of X. From the computed equilibria, the Cr equivalents of a number of ferrite stabilizers, Al, Mo, Nb, Si, Ti, V, and W, have been derived. They show satisfactory agreement with the known experimental range. The distinguishing feature of the thermodynamic calculations is that the Cr equivalents are established as a function of annealing temperature as well as Ni content, in contrast to the fixed values reported in the empirical diagrams obtained under variable experimental conditions.