General relationship between strength and hardness

Zhang, P.; Li, S. X.; Zhang, Z. F.

doi:10.1016/j.msea.2011.08.061

Cited by 932 publications

(312 citation statements)

References 33 publications

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“…[14]. Typically, strength is directly proportional to hardness, thus the high hardness value obtained implies the possible high strength of the HEA film [31]. This enhanced hardness is mainly ascribed to the shearing mechanism of dislocated particles or by-pass mechanism (Orowan-type), which induces the hardening produced by the precipitates observed in Figures 2 and 4 [9].…”

Section: Resultsmentioning

confidence: 86%

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

et al. 2017

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Abstract:The HEA-CoCrFeNiAl 0.3 thin film in this study has been successfully developed by radio frequency (RF) magnetron sputtering to meet the increasing demand in engineering applications. Its microstructure and surface profile were investigated accordingly. The as-synthesized HEA film was found to have a homogeneous element distribution and ultra-smooth surface, exhibiting a typical face-centered cubic (FCC) solid solution. The film showed better mechanical properties than its bulk counterpart, with a Young's modulus and hardness of~201.4 GPa and~11.5 GPa, respectively. Furthermore, corrosion tests demonstrated decreased sensitivity to localized corrosion in comparison to the commercial 304 stainless steel in NaCl solution.

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Section: Resultsmentioning

confidence: 86%

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

et al. 2017

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“…According to the theory of contact mechanics [22], the compression of spherical particle is similar to an inverse indentation, and thus the H c of the haze particles can be seen roughly as their hardness. For comparison, Vickers hardness of frequently used metals and alloys in industry, such as steels in bearings, superalloys in aircraft, have been shown in Figure 5(a) (red color) [12,[23][24][25][26][27]. It is obvious that the H c of iron-rich and fly ash particles are larger or at least comparable to the hardness of frequently used metals or alloys in industry ( Figure 5(a), red color).…”

Section: Resultsmentioning

confidence: 98%

In situ study of the mechanical properties of airborne haze particles

Ding

Han

et al. 2015

Sci. China Technol. Sci.

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Particulate pollution has raised serious concerns regarding its potential impacts on human health in developing countries. However, much less attention has been paid to the threat of haze particles to machinery and industry. By employing a state-of-the-art in situ scanning electron microscope compression testing technique, we demonstrate that iron-rich and fly ash haze particles, which account for nearly 70% of the total micron-sized spherical haze particles, are strong enough to generate abrasive damage to most engineering alloys, and therefore can generate significant scratch damage to moving contacting surfaces in high precision machineries. Our finding calls for preventive measures to protect against haze related threat.haze particle, hardness, abrasive damage, precision industry Citation:Ding M S, Han W Z, Li J, et al. In situ study of the mechanical properties of airborne haze particles.

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“…In addition, there is also strong experimental evidence corroborating the linear relationship between microhardness and yield strength in 1000 series aluminum [22][23][24][25][26][27]. Some data show a deviation in the linear relationship between σ y and Hv in the softened state, but assume a y-intercept of zero, which is not necessarily consistent with experimental results, where y-intercepts of N 100 have been reported [28,29]. Therefore, it can generally be assumed that yield strength and microhardness measurements are proportional such that…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 90%

Synergetic strengthening far beyond rule of mixtures in gradient structured aluminum rod

Moering

Malkin

et al. 2016

Scripta Materialia

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Gradient structured metals have been reported to exhibit high strength and high ductility. Here we report that the strength of gradient structured aluminum rod is much higher than the value calculated using the rule of mixtures. The mechanical incompatibility in the gradient structured round sample produced 3D stress states, extraordinary strengthening and good ductility. An out of plane {111} wire texture was developed during the testing, which contributes to the evolution of the stress state and mechanical behavior.

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General relationship between strength and hardness

Cited by 932 publications

References 33 publications

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

In situ study of the mechanical properties of airborne haze particles

Synergetic strengthening far beyond rule of mixtures in gradient structured aluminum rod

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