Effect of surface mechanical attrition treatment (SMAT) on microhardness, surface roughness and wettability of AISI 316L

Arifvianto, Budi; Suyitno, [No Value]; Mahardika, Muslim; Dewo, Punto; Iswanto, Priyo Tri; Salim, Urip Agus

doi:10.1016/j.matchemphys.2010.10.038

Cited by 148 publications

(71 citation statements)

References 34 publications

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“…Study by Huang R et al showed that SMAT can help the formation of more stable and much thicker passive protection films on the nanograined structure (Huang and Han, 2013). In addition, SMAT-treatment can enhance subsurface hardness and improve surface morphology, roughness, and wettability that might not be achieved by conventional surface treatments such as shot peening (Lu and Lu, 2004;Arifvianto et al, 2011). …”

Section: Discussionmentioning

confidence: 99%

Redesign of Indonesian-made osteosynthesis plates to enhance their mechanical behavior

Dewo

Houwen

Suyitno

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Discussionmentioning

confidence: 99%

Redesign of Indonesian-made osteosynthesis plates to enhance their mechanical behavior

Dewo

Houwen

Suyitno

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…According to Elias et al [27], the surface properties of the titanium affect the protein behavior on the surface, especially for adsorption and adhesion. In the other hand, an increase in surface roughness caused reduced in drop contact angle [28].…”

Section: Surface Roughness and Wettabilitymentioning

confidence: 97%

Influence of Isothermal Oxidation on Corrosion Resistance of Titanium in Bovine Serum

Prayoga

Suyitno

Dharmastiti

2018

Acta Metall. Slovaca

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The effects of isothermal oxidation holding time on the surface properties and corrosion behavior in bovine serum of cp-Ti were studied in this paper. The isothermal oxidation was done at 700°C for 0 to 36 hours in air with natural cooling. The surface microhardness, surface roughness, wettability and polarization potentiodynamic corrosion of cp-Ti were determined. The result shows the surface microhardness, surface roughness, wettability and corrosion resistance of the cp-Ti enhanced by isothermal oxidation treatment. The presence of the oxide layer on the surface in the form of TiO2 rutile and Ti3O are responsible to enhance the surface properties and corrosion behavior.

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“…A surface mechanical attrition treatment (SMAT) [3,10,12,[52][53][54][55][56]] generated a gradient of ultrafine crystal grain sizes. This technique employs ultrasonic shot peening inside a closed chamber, filled with stainless steel balls (1-10 mm diameter).…”

Section: Steelmentioning

confidence: 99%

“…Grain size refinement in metals, as achieved via cold working for some alloys [1], is widely accepted as a way to improve many of their mechanical properties [2,3]. More specifically, the material's strength is known to increase linearly with the inverse square root of the grain size below a given grain size-the direct Hall-Petch effect [4,5]:…”

Section: Introductionmentioning

confidence: 99%

Ballistic performance of nanocrystalline and nanotwinned ultrafine crystal steel

et al. 2012

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Because of their remarkable mechanical properties, nanocrystalline metals have been the focus of much research in recent years. Refining their grain size to the nanometer range (<100 nm) effectively reduces their dislocation mobility, thus achieving very high yield strength and surface hardness-as predicted by the Hall-Petch relation-as well as higher strain-rate sensitivity. Recent works have additionally suggested that nanocrystalline metals exhibit an even higher compressive strength under shock loading. However, the increase in strength of these materials is generally accompanied by an important reduction in ductility. As an alternative, efforts have been focused on ultrafine crystals, i.e. polycrystals with a grain size in the range of 500 nm to 1 \im, in which "growth twins" (twins introduced inside the grain before deformation) act as barriers against dislocation movement, thus increasing the strength in a similar way as nanocrystals but without significant loss of ductility. Due to their outstanding mechanical properties, both nanocrystalline and nanotwinned ultrafine crystalline steels appear to be relevant candidates for ballistic protection. The aim of the present work is to compare their ballistic performance against coarse-grained steel, as well as to identify the effect of the hybridization with a carbon fiber-epoxy composite layer. Hybridization is proposed as a way to improve the nanocrystalline brittle properties in a similar way as is done with ceramics in other protection systems. The experimental campaign is finally complemented by numerical simulations to help identify some of the intrinsic deformation mechanisms not observable experimentally. As a conclusion, nanocrystalline and nanotwinned ultrafine crystals show a lower energy absorption than coarse-grained steel under ballistic loading, but under equal impact conditions with no penetration, deformation in the impact direction is smaller by nearly 40%. This a priori surprising difference in the energy absorption is rationalized by the more important local contribution of the deviatoric stress vs. volumetric stress under impact than under uniaxial deformation. Ultimately, the deformation advantage could be exploited in the future for personal protection systems where a small deformation under impact is of key importance.

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Effect of surface mechanical attrition treatment (SMAT) on microhardness, surface roughness and wettability of AISI 316L

Cited by 148 publications

References 34 publications

Redesign of Indonesian-made osteosynthesis plates to enhance their mechanical behavior

Redesign of Indonesian-made osteosynthesis plates to enhance their mechanical behavior

Influence of Isothermal Oxidation on Corrosion Resistance of Titanium in Bovine Serum

Ballistic performance of nanocrystalline and nanotwinned ultrafine crystal steel

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