Effect of brown rice husk α-Si3N4 on Ni–P composite coating of austenitic AISI 316L steel: Taguchi grey relational approach

2022 ◽  
Author(s):  
S. Karthick ◽  
C. Elanchezhian ◽  
B. Vijaya Ramnath ◽  
M. Saravanan ◽  
K. Giridharan
Keyword(s):  
Composite Coating ◽  
Rice Husk ◽  
Brown Rice ◽  
Aisi 316L ◽  
Relational Approach ◽  
316L Steel ◽  
Grey Relational

Microstructural Fractal Dimension of AISI 316L Steel

1994 ◽  
Vol 367 ◽  
Author(s):  
M. Hinojosa ◽  
R. Rodréguez ◽  
U. Ortiz
Keyword(s):  
Fractal Dimension ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Tensile Strain ◽  
Optical Microscope ◽  
Standard Test ◽  
Test Method ◽  
Aisi 316L ◽  
316L Steel ◽  
Deformation Processes

AbstractFractal dimension of the microstructure of AISI 316L steel (17 Cr, 12.7 Ni, 2.1 Mo, 1. 5 Mn, 0.01 C) with different degrees of strain were obtained from Richardson plots of grain boundary perimeter against magnification. Grain boundaries were revealed using conventional metallographic techniques and measurements were taken with the aid of an automatic image analizer (Quantimet 520) attached to an optical microscope. The magnifications used were 50, 100, 200, 400, and 1000X. The samples were obtained from a 4” diameter tubing, machined according to ASTM A370 standard test method and deformed to 5, 10, 15, and 20 % tensile strain. The results show that the fractal dimension of the grain boundaries changes as deformation is imparted to the material.These results suggest that fractal dimension may be used to describe microstructural evolution of metals during deformation processes.

The Effect of Time and Temperature of Nitridation-Oxidation Process on Properties and Corrosion Resistance of AISI 316L Steel

2018 ◽  
Vol 54 (5) ◽  
pp. 508-517
Author(s):  
Milad Yazdkhasti ◽  
Sayed Ahmad Hosseini ◽  
Hamidreza Javadinejad ◽  
Hossein Zare ◽  
Mohsen Saboktakin Rizi ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Oxidation Process ◽  
Aisi 316L ◽  
316L Steel

Shellac and Hydroxyapatitte Coatings on Titanium Niobium and AISI 316L Steel Surfaces Produced by Dip-Coating

2019 ◽  
Vol 43 (1) ◽  
pp. 51-55
Author(s):  
Bruna F. Gomes ◽  
Carlos A. Picon ◽  
Frederico A. Fernandes ◽  
Ubirajara P. Rodrigues Filho ◽  
Germano Tremiliosi-Filho
Keyword(s):  
Dip Coating ◽  
Aisi 316L ◽  
316L Steel ◽  
Steel Surfaces

scholarly journals Tribological Properties of AISI 316L Steel Surface Layer Implanted with Rare Earth Element

2015 ◽  
Vol 128 (5) ◽  
pp. 923-926
Author(s):  
B. Sartowska ◽  
M. Barlak ◽  
L. Waliś ◽  
W. Starosta ◽  
J. Senatorski ◽  
...  
Keyword(s):  
Surface Layer ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Tribological Properties ◽  
Steel Surface ◽  
Earth Element ◽  
Aisi 316L ◽  
316L Steel

scholarly journals Improving the Corrosion Resistance of AISI 316L Steel for Semiconductor Piping by Controlled Delta-Ferrite Content

2022 ◽  
Vol 60 (1) ◽  
pp. 46-52
Author(s):  
Young Woo Seo ◽  
Chan Yang Kim ◽  
Bo Kyung Seo ◽  
Won Sub Chung
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
316L Stainless Steel ◽  
Sem Analysis ◽  
Ferrite Content ◽  
Aisi 316L ◽  
Delta Ferrite ◽  
Aisi 316L Stainless Steel ◽  
316L Steel ◽  
The Difference

This study evaluated changes in delta-ferrite content depending on the preheating of AISI 316L stainless steel. We also determined the reasons for the variation in delta-ferrite content, which affects corrosion resistance. Changes in delta-ferrite content after preheating was confirmed using a Feritscope, and the microstructure was analyzed using optical microscopy (OM). We found that the delta-ferrite microstructure size decreased when preheating time was increased at 1295 oC, and that the delta-ferrite content could be controlled through preheating. Potentiodynamic polarization test were carried out in NaCl (0.5 M) + H2SO4 (0.5 M) solution, and it was found that higher delta-ferrite content resulted in less corrosion potential and passive potential. To determine the cause, an analysis was conducted using energy-dispersive spectroscopy (EDS), which confirmed that higher delta-ferrite content led to weaker corrosion resistance, due to Cr degradation at the delta-ferrite and austenite boundaries. The degradation of Cr on the boundaries between austenite and delta-ferrite can be explained by the difference in the diffusion coefficient of Cr in the ferrite and austenite. A scanning electron microscopy (SEM) analysis of material used for actual semiconductor piping confirmed that corrosion begins at the delta-ferrite and austenite boundaries. These results confirm the need to control delta-ferrite content in AISI 316L stainless steel used for semiconductor piping.

Comparison of AISI 316L Plasma Nitriding Behavior in Low and Medium Temperature

2014 ◽  
Vol 493 ◽  
pp. 755-760 ◽  
Author(s):  
Istiroyah ◽  
I.N.G. Wardana ◽  
D.J. Santjojo
Keyword(s):  
Optical Emission Spectroscopy ◽  
Plasma Nitriding ◽  
Optical Emission ◽  
Optical Probe ◽  
Aisi 316L ◽  
Medium Temperature ◽  
Plasma Diagnosis ◽  
Treatment Techniques ◽  
316L Steel ◽  
Nitrided Sample

Plasma nitriding is a widely used technique to improve the mechanical properties and tribological properties of AISI 316L steel because it has many advantages over other surface treatment techniques. One of this advantage is plasma nitriding allows nitrogen introduce to steel at low temperature (below 500°C).In this study, nitriding of an AISI 316L was performed in high density plasma nitriding system using 70%N2:30%H2 gas mixture at 400°C and 480°C for 2, 4, and 8 hours. Optical Emission Spectroscopy (OES) with optical probe was used for plasma diagnosis. The properties of nitrided sample were investigated through microhardness measurement. The results show that N2 ions and radicals are species predominantly formed in plasma.

Test to Characterize the Machining Strength Property for the AISI 316L Steel

2011 ◽  
Vol 138-139 ◽  
pp. 604-611 ◽  
Author(s):  
Nivaldo Lemos Coppini ◽  
Julio Cesar Dutra ◽  
Elesandro Antonio Baptista ◽  
Fernando Aparecido Pacheco Da Silva Fortunato ◽  
Francisco Augusto Alves Ferreira ◽  
...  
Keyword(s):  
Grain Size ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Aisi 316L ◽  
Large Plastic Deformation ◽  
Ni Alloy ◽  
Pile Up ◽  
316L Steel ◽  
The One ◽  
Diagram Analysis

This paper explores the effect of grain size on machining strength in an Fe-Cr-Ni alloy (AISI 316L). Ideal grain growth law [1], was used to obtain the activation energy level for this steel, which was 185 kJ.mol-1[2]. The initial grain size was measured (12 μm) and considering these values, both temperature and time values needed to achieve a final grain size ten times larger than the initial one, could be calculated, which were 1200°C and 2 hours. Ternary phase diagram analysis showed that austenite was stable at this temperature. Following, samples of 200 mm length were annealed and quenched in water to prevent any formation of sigma (μ) phase. Annealed and as-received bars were then used to compare their machining strength. Results showed that the machining strength is higher in the as received condition than the one after annealing (127 μm). It may be concluded that the bigger the grain size, the lower its machining strength. It is believed that this is caused by the pile-up of dislocations on grain boundaries, since this material exhibits large plastic deformation before fracture.

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