Viscoplastic response of tooth enamel under cyclic microindentation

Jia, Yunfei; Xuan, Fu‐Zhen; Yang, Fuqian

doi:10.1016/j.msec.2015.05.074

Cited by 8 publications

(4 citation statements)

References 52 publications

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“…According to the study of Jia et al . 13 , the penetration depth existed two states of transient state and quasi-steady state. To ensure that the penetration depth reached quasi-steady state, the loading/unloading cycle was set as 300 times.…”

Section: Methodsmentioning

confidence: 99%

“…However, it’s difficult to use the conventional mechanical testing techniques, such as uniaxial tension-compression 4 , bend 5 and torsion 6 tests, to measure the mechanical properties of the constituent phase in a duplex stainless steel. Due to the simple operation, nanoindentation test has been widely used to characterize the local mechanical properties, such as elastic modulus and hardness 7 – 11 , and local deformation behaviors of materials at micro/nano-scale, such as the load-displacement curve 12 , the viscous-elastic-plastic behavior 13 . By the nanoindentation tests performed onto the constituent phases in austenitic-ferritic duplex stainless steels, the elastic modulus and hardness of ferrite phase are greater than those of austenite phase 14 , 15 .…”

Section: Introductionmentioning

confidence: 99%

“…Jia et al . 13 performed the cyclic indentations to investigate the dynamic behavior of the tooth enamel, and they suggested that the amplitude of the indentation depth and the penetration depth per cycle for the cyclic indentation of the axial section were larger than those for the indentation of the occlusal section under the same loading condition. Amini et al .…”

Section: Introductionmentioning

confidence: 99%

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Micro-deformation evolutions of the constituent phases in duplex stainless steel during cyclic nanoindentation

Cui

Jia

Xuan

2018

Sci Rep

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Cyclic elastoplastic deformation behaviors of austenite phase and ferrite phase in a duplex stainless steel were investigate by load-controlled cyclic nanoindentation with a Berkovich indenter. During the tests, the maximum penetration depth per cycle increased rapidly with cycle number at transient state, and reached stable at quasi-steady state. Plastic dissipated energy was quantitatively proved to be the driving force for the propagation of deformation zones during cyclic nanoindentation tests. Transmission electron microscopy combined with FIB was used to reveal the deformation mechanisms of both phases underneath indents with cycles. After quasi-static single loading, nucleation and concentration of dislocations were observed in both austenite phase and ferrite phase under the indenter. After cyclic loading, dislocations propagated to further regions in both phases. Besides, slip bands were generated within single nanoindentation and propagated during the subsequent cyclic nanoindentation. The sizes of the deformation regions for both phases under the indents after cyclic indentation observed by TEM were consistent with those calculated by the expansion model of spherical cavity.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Micro-deformation evolutions of the constituent phases in duplex stainless steel during cyclic nanoindentation

Cui

Jia

Xuan

2018

Sci Rep

Self Cite

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show abstract

“…2. According to the previous study in the biomaterials [6], the penetration depth existed two state, namely transient state and quasi-steady state. In order to ensure that the penetration depth reached quasi-steady state, the loading/unloading cycle was set as 300 times.…”

Section: Cyclic Indentation Testsmentioning

confidence: 97%

A Comparative Study on the Cyclic Behavior of Austenite/Ferrite Phases Characterized by the Nanoindentation

Cui

Jia

Xuan

2016

AMM

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The cyclic deformation behavior of the austenite and ferrite phase in an austenite-ferrite duplex stainless steel was studied by using the load-controlled cyclic nanoindentation approach. The results showed that the maximum penetration depth onto both austenite and ferrite phases increased continuously while the rate decreased gradually and finally reached to a constant during the repeated indentation. Both transient state and quasi-steady state were observed for the penetration depth per cycle on both of the austenite and ferrite phases with the increased cycles. By contrast, both the penetration depth and rate per cycle into the austenite phase were larger than those into the ferrite phase. This was ascribed to the stress-induced densification in the austenite and ferrite phases and strain-induced transformed martensite in the austenite phase.

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High frequency indentation fatigue behavior of GH4169 alloy at small length scale using nanoindentation

Xiao,

Zhou,

Wang

2024

J Mater Sci

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Viscoplastic response of tooth enamel under cyclic microindentation

Cited by 8 publications

References 52 publications

Micro-deformation evolutions of the constituent phases in duplex stainless steel during cyclic nanoindentation

Micro-deformation evolutions of the constituent phases in duplex stainless steel during cyclic nanoindentation

A Comparative Study on the Cyclic Behavior of Austenite/Ferrite Phases Characterized by the Nanoindentation

High frequency indentation fatigue behavior of GH4169 alloy at small length scale using nanoindentation

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