Xiangwei Liao, Xinjun Yang, Dongxiang Wang, Jiyun Du, Fangyang Yuan, Wei Yu, Qingsheng Li
{"title":"Research on Small Punch Test Method for Evaluating the Yield Strength of Gradient Nanostructured Material","authors":"Xiangwei Liao, Xinjun Yang, Dongxiang Wang, Jiyun Du, Fangyang Yuan, Wei Yu, Qingsheng Li","doi":"10.1007/s11665-024-10072-x","DOIUrl":null,"url":null,"abstract":"<p>To assess the yield strength of gradient-nanostructured (GNS) material by small punch test, an analytical method is proposed in this paper. The constructed theoretical model of GNS material is integrated into the classical circular plate bending theory, and an analytical formula specific to GNS material with different microstructures is derived. In order to mitigate the influence of stress state, the analytical formula is modified. The yield strength obtained by the revised analytical formula is close to the standard tensile test results, with errors falling within permissible range. Additionally, the relationship between elastic modulus and surface microstructure of GNS material is established. Thus, the yield strength of GNS material could be evaluated by the surface grain size without measuring of the surface elastic modulus.</p>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"9 1","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11665-024-10072-x","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
To assess the yield strength of gradient-nanostructured (GNS) material by small punch test, an analytical method is proposed in this paper. The constructed theoretical model of GNS material is integrated into the classical circular plate bending theory, and an analytical formula specific to GNS material with different microstructures is derived. In order to mitigate the influence of stress state, the analytical formula is modified. The yield strength obtained by the revised analytical formula is close to the standard tensile test results, with errors falling within permissible range. Additionally, the relationship between elastic modulus and surface microstructure of GNS material is established. Thus, the yield strength of GNS material could be evaluated by the surface grain size without measuring of the surface elastic modulus.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
