Surface roughness and wettability of AISI 316L induced by surface mechanical attrition treatment with different milling ball diameter

2009 ◽  
Author(s):  
B. Arifvianto ◽  
Suyitno
Keyword(s):  
Surface Roughness ◽  
Surface Mechanical Attrition Treatment ◽  
Aisi 316L ◽  
Mechanical Attrition ◽  
Ball Diameter

Effect of Sandblasting and Surface Mechanical Attrition Treatment on Surface Roughness, Wettability, and Microhardness Distribution of AISI 316L

2011 ◽  
Vol 462-463 ◽  
pp. 738-743 ◽  
Author(s):  
B. Arifvianto ◽  
Suyitno ◽  
Muslim Mahardika
Keyword(s):  
Surface Roughness ◽  
Hardened Layer ◽  
Surface Mechanical Attrition Treatment ◽  
Hydrophilic Surface ◽  
Aisi 316L ◽  
Bone Implant ◽  
Microhardness Distribution ◽  
Mechanical Attrition ◽  
The Stability ◽  
Grains Refinement

Surface roughness and wettability determines the stability of bone-implant integration. Stable implants can be found in those with a rough and hydrophilic surface. Sandblasting and surface mechanical attrition treatment (SMAT) are among the current techniques to obtain surface with such typical properties. In addition, both treatments increase mechanical strength of metal through surface grains refinement. In this paper, the effect of sandblasting and SMAT on surface roughness, wettability, and microhardness distribution of AISI 316L is discussed. All treatments were conducted for 0-20 minutes. The result shows a rougher and a more hydrophilic surface on the sandblasted samples rather than on those with SMAT. A harder surface is yielded by both treatments, but the SMAT produces a thicker hardened layer.

Study on the Structure and Properties of Surface Nanocrystallized Zr-4

2011 ◽  
Vol 415-417 ◽  
pp. 660-665
Author(s):  
Cong Hui Zhang ◽  
Da Li Liu ◽  
Xin Zhe Lan ◽  
Xi Cheng Zhao
Keyword(s):  
Surface Roughness ◽  
Surface Layer ◽  
Processing Time ◽  
Optical Microscope ◽  
Surface Mechanical Attrition Treatment ◽  
Structure And Properties ◽  
Nanostructured Surface ◽  
Grain Sizes ◽  
Mechanical Attrition ◽  
Average Grain Size

A nanostructured surface layer was obtained on the surface of Zr-4 by surface mechanical attrition treatment(SMAT). The structure and the properties of the SMAT sample were analyzed by means of the optical microscope, hardness and polarization curve testing. The results show that， when processing time for 5min, the average grain sizes on the surface layer can be refined to 23nm. The average grain size by SMAT-ed for 15min is 20nm, which is the smallest. The microhardness have a significant increase, the surface roughness also increase, and the corrosion resistance reduce in 1mol H2SO4solution.

Influence of Surface Mechanical Attrition Treatment on Fretting Wear Behaviour of Ti-6Al-4V

2012 ◽  
Vol 463-464 ◽  
pp. 316-320 ◽  
Author(s):  
S. Anand Kumar ◽  
S. Ganesh Sundara Raman ◽  
T.S.N. Sankara Narayanan ◽  
R. Gnanamoorthy
Keyword(s):  
Surface Roughness ◽  
Wear Resistance ◽  
Tangential Force ◽  
High Hardness ◽  
Fretting Wear ◽  
Surface Mechanical Attrition Treatment ◽  
Wear Behaviour ◽  
Force Coefficient ◽  
Near Surface ◽  
Mechanical Attrition

Ti-6Al-4V alloy was subjected to surface mechanical attrition treatment (SMAT) by using SAE 52100 steel balls of 5 mm diameter for two treatment durations (30 and 60 min). SMAT resulted in the formation of nanostructured material on the surface and near surface regions, increased hardness, increased surface roughness and compressive residual stress on the surface. Treated samples exhibited lower tangential force coefficient (TFC) compared to untreated samples. Samples treated for 60 min exhibited higher grain refinement, higher hardness, lower surface roughness and higher TFC compared to the samples treated for 30 min. Fretting wear resistance of the samples treated for 30 min was higher than that of untreated samples and the samples treated for 60 min. Due to very high hardness and presumably reduced ductility, the fretting wear resistance of the samples treated for 60 min was lower than that of the untreated samples and samples treated for 30 min.

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