Conversion between Vickers hardness and nanohardness by correcting projected area with sink-in and pile-up effects

作     者：Youping LU Yue SU Wei GE Tengfei YANG Zhanfeng YAN Yugang WANG Songqin XIA 鲁又萍;苏悦;葛伟;杨腾飞;闫占峰;王宇钢;夏松钦

作者机构：State Key Laboratory of Nuclear Physics and TechnologyCenter for Applied Physics and TechnologyPeking UniversityBeijing 100871People's Republic of China College of Materials Science and EngineeringHunan UniversityChangsha 410082People's Republic of China 不详 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2020年第22卷第6期

页      面：188-199页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 0702[理学-物理学] 

基　　金：financially supported by the National Magnetic Confinement Fusion Energy Research Project of China(No.2015GB113000) National Natural Science Foundation of China(Nos.11675005,11935004) China Postdoctoral Science Foundation(No.2018M641093) the National Defense Nuclear Material Technology Innovation Center 

主　　题：Vickers hardness nanohardness conversion 

摘      要：The Vickers hardness test has been widely used for neutron-irradiated materials and nanoindentation for ion-irradiated *** the Vickers hardness and nanohardness of the same materials quantitatively and establishing a correlation between them is *** this study,five representative materials—pure titanium(Ti),nickel(Ni),tungsten(W),304 coarse-grained stainless steel(CG-SS)and 304 nanocrystalline austenitic stainless steel(NG-SS)—are investigated for *** results show that the relationship between Vickers hardness and nanohardness does not conform to a mathematical geometric relationship because of sink-in and pile-up effects confirmed by finite element analysis(FEA)and the results of optical ***,one new method was developed by excluding the effects of sink-in and pile-up in *** this improved correction in the projected area of the Vickers hardness and nanohardness,the two kinds of hardness become identical.