A method for reducing the length difference of Vickers indentation diagonal

• Autorzy: Yu Mingyang , Zhang Qingdong , Wang Bin , Li Hao

Identyfikatory

DOI

10.24425/mms.2024.150291

• Języki publikacji: EN

Abstrakty

EN

This paper aims to analyse the reason for the relatively large length difference of the diagonal of Vickers indentation on the tested material with mechanical anisotropy and propose a feasible method to reduce it. The Vickers hardness test results of the tested material with mechanical anisotropy have shown that the length difference of the diagonal of Vickers indentation on the tested material with mechanical anisotropy would be more than 5% very likely, which is against the test requirement of the related test standard and would affect the test accuracy and effectiveness of the Vickers hardness test. The finite element simulation results of the Vickers hardness test of the tested material with mechanical anisotropy have also shown that the anisotropy of mechanical properties of tested material would affect the length recovery of the diagonal of Vickers indentation on the surface of tested material, thereby affecting the difference of the diagonal length of Vickers indentation. This paper has proposed a method to decrease of diagonal length difference of Vickers indentation through rotating the indenter or the tested material properly and conducting a multiple Vickers hardness test, thereby improving the accuracy and effectiveness of the Vickers hardness test according to the related test standards.

Słowa kluczowe

EN

Vickers indentation; diagonal length; anisotropic material; indenting direction; test accuracy

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2024
• Tom: Vol. 31, nr 3
• Strony: 619--636
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Yu Mingyang

• School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China

autor

Zhang Qingdong

• School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

autor

Wang Bin

• School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

• https://orcid.org/0000-0003-1303-4552

autor

Li Hao

• School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

• https://orcid.org/0000-0003-3928-6870

Bibliografia

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Uwagi

1. This research has been funded by the Startup Research Fund of Zhengzhou University (No. 32212492).

2. Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).