Expanded dataset of mechanical properties and observed phases of multi-principal element alloys

This data article presents a compilation of mechanical properties of 638 multi-principal element alloys.Built upon recently published MPEA databases, this article includes updated records from previous reviews (with minor error corrections) along with new data from articles that were published since 2019.The extracted properties include composition, processing method, microstructure, density, hardness, yield strength, ultimate tensile strength, elongation, and Young’s modulus.Additionally, descriptors (e.g. grain size) not included in previous reviews were also extracted for articles that reported them.

本数据文章汇编了638种多主元合金（multi-principal element alloys, MPEA）的力学性能数据集。本数据集基于已公开的MPEA数据库构建，纳入了既往综述的更新记录（包含少量错误修正），同时补充了2019年以来发表的文献中的新增数据。本次提取的性能参数涵盖合金成分、制备工艺、微观组织、密度、硬度、屈服强度、抗拉强度、断后伸长率以及杨氏模量（Young’s modulus）。此外，针对有相关参数报道的文献，本数据集还提取了既往综述未纳入的描述性指标（例如晶粒尺寸）。