稀土钢数据库

采用第一性原理方法、相图计算热力学和耦合了拟静力学模型与热弹性流体动压润滑模型的精度寿命预测模型，计算了稀土元素与轴承钢中主要合金元素、晶体缺陷、碳化物等作用数据，Fe-Cr-C三元合金不同温度下的平衡相组分热力学数据，以及机床轴承精度寿命预测模型及数据，并通过实验表征分析获得了轴承钢不同热处理工艺条件下的组织，从而为稀土轴承钢设计提供数据基础。

First-principles methods, phase diagram-based thermodynamic calculations, and an accuracy life prediction model coupled with a quasi-static model and a thermo-elastohydrodynamic lubrication model were employed to calculate the interaction data between rare earth elements and major alloying elements, crystal defects, carbides and other constituents in bearing steel, the thermodynamic data of equilibrium phase compositions of Fe-Cr-C ternary alloy at different temperatures, and the accuracy life prediction models and corresponding data for machine tool bearings. Additionally, the microstructures of bearing steel under various heat treatment processes were obtained via experimental characterization and analysis, thereby providing a data foundation for the design of rare earth-containing bearing steels.

搜集汇总

背景与挑战

背景概述

稀土钢数据库是由中国科学院金属研究所创建的数据集，主要包含稀土元素与轴承钢中合金元素、晶体缺陷、碳化物的作用数据，以及Fe-Cr-C三元合金的热力学数据和轴承钢热处理组织数据。该数据集通过第一性原理、相图计算热力学和精度寿命预测模型进行计算，为稀土轴承钢设计提供数据基础。