On the evaluation of uniaxial tensile and fracture properties of Ti-6Al-4V by spherical indentation tests with different calculation models
Jianxun Li
Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China
Department of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, UK
Search for more papers by this authorMinghang Wang
Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China
Search for more papers by this authorYing Li
Commercial Aircraft Engine Company Limited, AECC Commercial Aircraft Engine Co, Ltd, Shanghai, China
Search for more papers by this authorHaofeng Chen
Department of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, UK
Key Laboratory of Pressure Systems and Safety, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China
Search for more papers by this authorCorresponding Author
Tairui Zhang
School of Mechanical Engineering, Southeast University, Nanjing, China
Correspondence
Tairui Zhang, School of Mechanical Engineering, Southeast University, Nanjing, China.
Email: [email protected]
Weiqiang Wang, Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China.
Email: [email protected]
Search for more papers by this authorCorresponding Author
Weiqiang Wang
Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, China
Correspondence
Tairui Zhang, School of Mechanical Engineering, Southeast University, Nanjing, China.
Email: [email protected]
Weiqiang Wang, Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China.
Email: [email protected]
Search for more papers by this authorJianxun Li
Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China
Department of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, UK
Search for more papers by this authorMinghang Wang
Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China
Search for more papers by this authorYing Li
Commercial Aircraft Engine Company Limited, AECC Commercial Aircraft Engine Co, Ltd, Shanghai, China
Search for more papers by this authorHaofeng Chen
Department of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, UK
Key Laboratory of Pressure Systems and Safety, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China
Search for more papers by this authorCorresponding Author
Tairui Zhang
School of Mechanical Engineering, Southeast University, Nanjing, China
Correspondence
Tairui Zhang, School of Mechanical Engineering, Southeast University, Nanjing, China.
Email: [email protected]
Weiqiang Wang, Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China.
Email: [email protected]
Search for more papers by this authorCorresponding Author
Weiqiang Wang
Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, China
Correspondence
Tairui Zhang, School of Mechanical Engineering, Southeast University, Nanjing, China.
Email: [email protected]
Weiqiang Wang, Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, China.
Email: [email protected]
Search for more papers by this authorAbstract
This study assessed the efficacy of models in predicting uniaxial tensile and fracture properties of Ti-6Al-4V (TC4) alloys via spherical indentation tests (SITs). Four models, including one empirical, one numerical, and two analytical, were selected as representatives to evaluate uniaxial tensile properties. A series of experiments were conducted on TC4 alloys obtained from three manufacturing processes: selective laser melting (SLM), forging, and welding. The empirical model underestimated the material's strength, while the other models were mostly conservative, with errors within 10%, acceptable for engineering applications. However, although the incremental model is able to provide a desirable result, it may be inaccurate for calculating the yield strength. Thus, the source of errors in each model was thoroughly investigated through theoretical analysis and finite element calculations. Additionally, based on the results of optimal strength assessment, this study validated the effectiveness of the critical stress model to evaluate the fracture toughness of TC4 alloys.
Highlights
- This study evaluated the mechanical properties of TC4 alloys with different indentation models.
- This study used the indentation response analysis of TC4 alloys from the SLM, forging, and welding.
- Sources of errors in each representative model were discussed in detail.
- Selection of the optimal stain threshold in the incremental model was examined.
CONFLICT OF INTEREST STATEMENT
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Open Research
DATA AVAILABILITY STATEMENT
Data will be made available on request.
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