A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth

The spherical indentation technique provides an easy way to evaluate the integrity of in-service structures because it is nondestructive. In this study, a simple method was proposed to measure mechanical properties such as the yield strength, the ultimate tensile strength, and the strain hardening e...

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Main Authors: Ying Kan, Yiwen Wu, Liping Ren, Huaining Chen
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2020/7372807
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author Ying Kan
Yiwen Wu
Liping Ren
Huaining Chen
author_facet Ying Kan
Yiwen Wu
Liping Ren
Huaining Chen
author_sort Ying Kan
collection DOAJ
description The spherical indentation technique provides an easy way to evaluate the integrity of in-service structures because it is nondestructive. In this study, a simple method was proposed to measure mechanical properties such as the yield strength, the ultimate tensile strength, and the strain hardening exponent from the indentation curve at a large indentation depth, which is 0.4 times of the indenter radius. Based on finite element analyses, a simple function was proposed to relate representative stress to indentation data. Besides, representative strains at different indentation depths were identified according to the load-depth curves from simulations. The calculated plastic properties from the developed method were compared well with experimental results.
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institution Kabale University
issn 1687-8434
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publishDate 2020-01-01
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series Advances in Materials Science and Engineering
spelling doaj-art-eb8c35c155454fc89213b67fed9c5e9f2025-02-03T05:49:31ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/73728077372807A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large DepthYing Kan0Yiwen Wu1Liping Ren2Huaining Chen3CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaTechnical Centre for Industrial Product and Raw Material Testing & Inspection, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai 200135, ChinaTechnical Centre for Industrial Product and Raw Material Testing & Inspection, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai 200135, ChinaCAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaThe spherical indentation technique provides an easy way to evaluate the integrity of in-service structures because it is nondestructive. In this study, a simple method was proposed to measure mechanical properties such as the yield strength, the ultimate tensile strength, and the strain hardening exponent from the indentation curve at a large indentation depth, which is 0.4 times of the indenter radius. Based on finite element analyses, a simple function was proposed to relate representative stress to indentation data. Besides, representative strains at different indentation depths were identified according to the load-depth curves from simulations. The calculated plastic properties from the developed method were compared well with experimental results.http://dx.doi.org/10.1155/2020/7372807
spellingShingle Ying Kan
Yiwen Wu
Liping Ren
Huaining Chen
A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth
Advances in Materials Science and Engineering
title A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth
title_full A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth
title_fullStr A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth
title_full_unstemmed A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth
title_short A Simple Method for Measuring Plastic Properties of Power Hardening Metals via the Indentation Curve with a Large Depth
title_sort simple method for measuring plastic properties of power hardening metals via the indentation curve with a large depth
url http://dx.doi.org/10.1155/2020/7372807
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