Fatigue database of complex metallic alloys

The past few decades have witnessed rapid progresses in the research and development of complex metallic alloys such as metallic glasses and multi-principal element alloys, which offer new solutions to tackle engineering problems of materials such as the strength-toughness conflict and deployment in harsh environments and/or for long-term service. A fatigue database (FatigueData-CMA2022) is compiled from the literature by the end of 2022. Data for both metallic glasses and multi-principal element alloys are included and analyzed for their statistics and patterns. Automatic extraction and manual examination are combined in the workflow to improve the efficiency of processing, the quality of published data, and the reusability. The database contains 272 fatigue datasets of <em>S</em>-<em>N</em> (the stress-life relation), <em>ε</em>-<em>N</em> (the strain-life relation), and d<em>a</em>/d<em>N</em>-Δ<em>K</em> (the relation between the fatigue crack growth rate and the stress intensity factor range) data, together with the information of materials, processing and testing conditions, and mechanical properties. The database and scripts are released in open repositories, which are designed in formats that can be continuously expanded and updated. <br> Article DOI: 10.1038/s41597-023-02354-1过去数十年间，金属玻璃（metallic glasses）、多主元合金（multi-principal element alloys）这类复杂金属合金的研发工作取得了长足进展，此类材料为解决材料领域的强度-韧性矛盾、恶劣环境部署及长期服役等工程难题提供了全新解决方案。本研究于2022年底从已发表文献中整理构建了疲劳数据库FatigueData-CMA2022，该数据库涵盖金属玻璃与多主元合金的相关数据，并对其统计特征与分布规律开展分析。为提升数据处理效率、保障发表数据质量并增强数据可复用性，本工作流结合了自动提取与人工核验两种方式。该数据库包含272组疲劳数据集，涵盖S-N（应力-寿命关系）、ε-N（应变-寿命关系）以及da/dN-ΔK（疲劳裂纹扩展速率与应力强度因子范围的关系）三类数据，同时附带材料、制备与测试条件以及力学性能等相关信息。该数据库与配套脚本已在开源仓库中发布，其设计格式支持持续扩展与更新。<br>文章DOI: 10.1038/s41597-023-02354-1

搜集汇总

背景与挑战

背景概述

该数据集是一个复杂金属合金的疲劳性能数据库，收录了截至2022年的金属玻璃和多主元合金的疲劳数据，包括S-N、ε-N和da/dN-ΔK关系，总计272个数据集，并涵盖材料、处理、测试条件和力学性能信息。数据集以开放格式发布，支持持续扩展和更新，旨在提高数据质量和可重用性，适用于航空航天材料、固体力学和金属合金材料等领域的研究。