Effects of Sample Tilt on Vickers Indentation Hardness

Liu, Ming; Zhu, Guang-Yu; Dong, Xiangyu; Liao, Jinming; Gao, Chen

doi:10.1007/978-981-10-4109-9_28

Advanced Mechanical Science and Technology for the Industrial Revolution 4.0 2017

DOI: 10.1007/978-981-10-4109-9_28

|View full text |Cite

Effects of Sample Tilt on Vickers Indentation Hardness

Ming Liu

Guang-Yu Zhu

Xiangyu Dong

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2019

2021

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 5 publications

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Microscratch of copper by a Rockwell C diamond indenter under a constant load

Liu

2021

Nanotechnology and Precision Engineering

View full text Add to dashboard Cite

The scratch test is used for quality control mostly in phenomenological ways, and whether fracture toughness can be obtained from this test is still a matter of debate requiring further elucidation. In this paper, values of the fracture toughness of copper obtained by different scratch-based approaches are compared in order to examine the applicability of scratch-based methodologies to characterize the fracture toughness of soft metals. The scratch response of copper to a Rockwell C diamond indenter is studied under a constant normal load condition. The variations of penetration depth, residual depth, and residual scratch width with applied normal load are quantified from spherical to sphero-conical contact regimes by piecewise functions. A newly proposed size effect law is found to be the most suitable for scratch-based approaches to characterizing the fracture toughness of soft metallic materials with significant plasticity. A simple expression relating the nominal stress to the penetration depth is proposed for the spherical contact regime and gives almost the same value of fracture toughness. The residual scratch width provides useful information on pile-up of material and on the spherical tip radius of the indenter. It is found that the values of the fracture toughness obtained from the microscratch test are influenced by the data range for analysis.

show abstract

Microscratch of copper by a Rockwell C diamond indenter under a constant load

Liu

2021

Nanotechnology and Precision Engineering

View full text Add to dashboard Cite

show abstract

Effect of Sample Tilt on Spherical Indentation of an Elastic Solid

Gao

Yao

Zheng

et al. 2019

Journal of Testing and Evaluation

View full text Add to dashboard Cite

The effect of sample tilt in spherical indentation is studied by recourse to three-dimensional finite element simulation of the loading process. An elastic solid subjected to a rigid spherical indenter is considered under either frictionless or infinitely frictional contact condition. It is found the contact boundary is not parallel with the tilted surface, and the tilt angle of the contact boundary is smaller than the sample tilt angle. The side force is prominent for frictionless contact, and the ratio of side force to normal force increases with the sample tilt angle because of a larger unbalanced displacement field. Nevertheless, the ratio of side force to normal force is relatively small for infinitely frictional contact because the displacement distribution is controlled by the nonslip condition and almost balanced irrespective of sample tilt.

show abstract

Measurement of Sample Tilt by Residual Imprint Morphology of Berkovich Indenter

Gao

Yao

Liu

2020

Journal of Testing and Evaluation

View full text Add to dashboard Cite

The tilt between sample surface and indenter is the premise for taking into consideration the effect of sample tilt on indentation measurement by some correction functions. A theoretical approach is proposed to measure the tilt angle and rotation angle of a tilted sample by the residual imprint morphology of the Berkovich indenter. The tilt angle and rotation angle are defined in the Cartesian coordinate system at the tip of the Berkovich indenter, which is ideal and whose axis is along the vertical direction. The normal of the sample surface can be calculated with unique solutions by solving the equations with the projected contact lengths of indenter edges as input values, which can be measured directly from the residual imprint after indentation. Tilt angle and rotation angle can be calculated from sample surface normal.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Effects of Sample Tilt on Vickers Indentation Hardness

Cited by 5 publications

References 57 publications

Microscratch of copper by a Rockwell C diamond indenter under a constant load

Microscratch of copper by a Rockwell C diamond indenter under a constant load

Effect of Sample Tilt on Spherical Indentation of an Elastic Solid

Measurement of Sample Tilt by Residual Imprint Morphology of Berkovich Indenter

Contact Info

Product

Resources

About