On the prediction of tensile properties from hardness tests

Lai, M.O.; Lim, Kah Bin

doi:10.1007/bf00549163

Cited by 51 publications

(37 citation statements)

References 3 publications

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“…Such relations can be useful in the design, where direct measurement of tensile properties is not viable. These relations are always attractive as they bring down the number of tests to be conducted to ensure the quality of the materials [4,5]. As these methods are fast and relatively non-destructive in nature they are effectively used in failure analysis [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Apart from these, few methods were proposed for estimation of strength for metals using an indentation technique in the literature [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the correlations available were obtained by analysis of data for steels [1][2][3][4][5][6][7][8][9][10]. Therefore, an attempt has been made to propose correlations to estimate the strength from hardness for copper alloys.…”

Section: Introductionmentioning

confidence: 99%

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On the Prediction of Strength from Hardness for Copper Alloys

Krishna

Gangwar

Jha

et al. 2013

Journal of Materials

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Hardness and strength values of over 55 copper alloys strengthened by solid solution strengthening, precipitation hardening, cold working, and dispersion strengthening were compiled. The yield strength (YS) and ultimate tensile strength (UTS) values of the copper alloys examined ranged between 50 to 1300 MPa and 200 to 1400 MPa, respectively. The compiled values were classified based on strain-hardening potential an indirect method to understand the effect of strain-hardening characteristics. Least squares regression analysis was employed to establish correlations between strength and Vickers hardness values. Strain-hardening potential showed a significant effect on the correlations. In all the cases, a linear relation was obtained for both YS and UTS with hardness for the entire range of values under analysis. Simple empirical equations were proposed to estimate the strength using bulk hardness. The proposed correlations obtained for the entire range of values were verified with experimental values. A good agreement was observed between experimental and predicted values.

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Section: Introductionmentioning

confidence: 99%

“…Apart from these, few methods were proposed for estimation of strength for metals using an indentation technique in the literature [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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On the Prediction of Strength from Hardness for Copper Alloys

Krishna

Gangwar

Jha

et al. 2013

Journal of Materials

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“…El-daly et al [5] obtained bulk, shear, Young's modulus and Poisson's ratio of Al-SiC nanocomposite using pulse echo overlap (PEO) methods. Collin et al [17], Beghini et al [19], and Lai et al [20] could also obtain the tensile stress-strain curve of the material using instrumented indentation tests.…”

Section: Introductionmentioning

confidence: 98%

Evaluation of tensile strength of Al7075-SiC nanocomposite compacted by gas gun using spherical indentation test and neural networks

Atrian

Majzoobi

Nourbakhsh

et al. 2016

Advanced Powder Technology

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“…Several empirical relationships have been developed to relate the hardness of a material to its yield strength [2][3][4][5][6]. Tabor [2,6] showed that, for steel and a variety of other metals, the ratio of the ultimate tensile strength to the Vickers hardness number is proportional to the strain hardening exponent of the material.…”

Section: Introductionmentioning

confidence: 99%

A Finite-Element Hardness Model for Analyzing 316L Stainless Steel/Ceramic Nanocomposites

2015

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A new finite-element approach to calculating the hardness of nanocomposite materials based on a 316L stainless steel matrix and nanoceramic inclusions is presented. Two different ceramic inclusions, alumina and titania, are considered. The finite-element model is created on the basis of the spherical Brinell hardness contact model. A quarter of the 3D finite-element is used to model the contact between a spherical tungsten carbide indenter and nanocomposite materials. The effect of the elastic modulus and percentage of the ceramic inclusions on the hardness of the nanocomposites considered is investigated. The finite-element model is verified by comparing itsresults with experimental data. The comparison showed a good agreement for low-concentration compositions and a slight deviation for highly concentrated ones.

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On the prediction of tensile properties from hardness tests

Cited by 51 publications

References 3 publications

On the Prediction of Strength from Hardness for Copper Alloys

On the Prediction of Strength from Hardness for Copper Alloys

Evaluation of tensile strength of Al7075-SiC nanocomposite compacted by gas gun using spherical indentation test and neural networks

A Finite-Element Hardness Model for Analyzing 316L Stainless Steel/Ceramic Nanocomposites

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