scholarly journals Synthesis, Surface Nitriding and Characterization of Ti-Nb Modified 316L Stainless Steel Alloy Using Powder Metallurgy

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3270
Author(s):  
Sadaqat Ali ◽  
Muhammad Irfan ◽  
Usama Muhammad Niazi ◽  
Ahmad Majdi Abdul Rani ◽  
Imran Shah ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
316L Stainless Steel ◽  
Artificial Saliva ◽  
Low Cost ◽  
Fibroblast Cell ◽  
Nitride Layer ◽  
Processing Technique ◽  
Steel Matrix

The powder metallurgy (PM) technique has been widely used for producing different alloy compositions by the addition of suitable reinforcements. PM is also capable of producing desireable mechanical and physical properties of the material by varying process parameters. This research investigates the addition of titanium and niobium in a 316L stainless steel matrix for potential use in the biomedical field. The increase of sintering dwell time resulted in simultaneous sintering and surface nitriding of compositions, using nitrogen as the sintering atmosphere. The developed alloy compositions were characterized using OM, FESEM, XRD and XPS techniques for quantification of the surface nitride layer and the nitrogen absorbed during sintering. The corrosion resistance and cytotoxicity assessments of the developed compositions were carried out in artificial saliva solution and human oral fibroblast cell culture, respectively. The results indicated that the nitride layer produced during sintering increased the corrosion resistance of the alloy and the developed compositions are non-cytotoxic. This newly developed alloy composition and processing technique is expected to provide a low-cost solution to implant manufacturing.

Preparation and Properties of Cu-10Sn Alloy Infiltrated 316L Stainless Steel Composites

2012 ◽  
Vol 503-504 ◽  
pp. 552-555 ◽  
Author(s):  
Xia Yang ◽  
Ying Long Bai ◽  
Meng Xu ◽  
Shi Ju Guo
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
Matrix Composite ◽  
316L Stainless Steel ◽  
Corrosion Potential ◽  
Steel Matrix ◽  
Mechanical Properties And Corrosion ◽  
Steel Matrix Composite

A new method to produce powder metallurgy (P/M) 316L stainless steel matrix composite by pressureless infiltrating Cu-10Sn alloy was studied. The effect of various compaction pressures and infiltrating temperatures on the microstructure, mechanical properties and corrosion resistance was investigated. The results show that high density P/M 316L stainless steel matrix composite could be achieved by infiltration. A maximum relative density of 98% was achieved, provided that the porosity of the skeleton was controlled at 18%~22%. After infiltration, hardness of the samples increased from 49 HRB to 89 HRB. Moreover, the critical corrosion potential reached -212 mV, close to the level of as cast 316L stainless steel. The hardness of infiltrated composite of the same density decreased with increase in initial skeleton density. It was necessary to prevent the egregious grain growth while the infiltrating temperature was too high.

scholarly journals The Influence of Nitrogen Absorption on Microstructure, Properties and Cytotoxicity Assessment of 316L Stainless Steel Alloy Reinforced with Boron and Niobium

Processes ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 506 ◽  
Author(s):  
Sadaqat Ali ◽  
Ahmad Majdi Abdul Rani ◽  
Riaz Ahmad Mufti ◽  
Farooq I. Azam ◽  
Sri Hastuty ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Photoelectron Spectroscopy ◽  
316L Stainless Steel ◽  
Artificial Saliva ◽  
Alloy System ◽  
Sample Surface ◽  
Nickel Ions ◽  
X Ray ◽  
Cytotoxicity Assessment

In the past, 316L stainless steel (SS) has been the material of choice for implant manufacturing. However, the leaching of nickel ions from the SS matrix limits its usefulness as an implant material. In this study, an efficient approach for controlling the leaching of ions and improving its properties is presented. The composition of SS was modified with the addition of boron and niobium, which was followed by sintering in nitrogen atmosphere for 8 h. The X-ray diffraction (XRD) results showed the formation of strong nitrides, indicating the diffusion of nitrogen into the SS matrix. The X-ray photoelectron spectroscopy (XPS) analysis revealed that a nitride layer was deposited on the sample surface, thereby helping to control the leaching of metal ions. The corrosion resistance of the alloy systems in artificial saliva solution indicated minimal weight loss, indicating improved corrosion resistance. The cytotoxicity assessment of the alloy system showed that the developed modified stainless steel alloys are compatible with living cells and can be used as implant materials.

Formation of a protective nitride layer by electrochemical nitridation on 316L SS bipolar plates for a proton exchange membrane fuel cell (PEMFC)

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64466-64470 ◽  
Author(s):  
S. Pugal Mani ◽  
C. Anandan ◽  
N. Rajendran
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Fuel Cell ◽  
Electrolyte Solution ◽  
Proton Exchange Membrane ◽  
316L Stainless Steel ◽  
Nitride Layer ◽  
Proton Exchange ◽  
Bipolar Plates ◽  
Exchange Membrane

In the present study, an attempt has been made to increase the corrosion resistance of 316L stainless steel (SS) bipolar plates (Bp) through electrochemical nitridation using a nitrate bearing electrolyte solution of 0.1 M HNO3 and 0.5 M KNO3.

In Vitro Corrosion Behaviour of Metallic Dental Materials

2015 ◽  
Vol 1114 ◽  
pp. 258-265 ◽  
Author(s):  
Diana Maria Vrânceanu ◽  
Mihai Tarcolea ◽  
Ana Iulia Gherghilescu ◽  
Florin Miculescu ◽  
Mihai Cosmin Cotrut
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
316L Stainless Steel ◽  
Corrosion Behaviour ◽  
Artificial Saliva ◽  
Dental Materials ◽  
Ti6al4v Alloy ◽  
Solution Ph ◽  
Cp Ti ◽  
Selection Of

Typical applications of metallic dental materials include metal-ceramic restorations, dental implants or orthodontic systems. Due to their contact with human tissues, corrosion resistance is one of the main requirements for dental materials. In the present paper, the corrosion behaviour in Fusayama Meyer artificial saliva solution (pH=5.2) on a selection of four different metallic dental materials (316 L steel, Au based alloy, cp-Ti, Ti6Al4V alloy) currently used in dentistry were investigated. The metallic dental materials have been investigated in terms of electrochemical analysis, chemical composition, morphology before and after corrosion, wettability and roughness. The results showed a hydrophilic behaviour in the case of Au based alloy, cp-Ti and Ti6Al4V alloy, and hydrophobic for 316L stainless steel. Considering the main electrochemical parameters, the cp-Ti alloy exhibited better corrosion resistance in artificial saliva with pH=5.2, followed by Au based alloy, Ti6Al4V alloy and 316L stainless steel. The main objective of the present paper was to evaluate the corrosion behaviour, as in important factor in the selection of metallic materials used in dentistry.

Role of Debinding to Control Mechanical Properties of Powder Injection Molded 316L Stainless Steel

2013 ◽  
Vol 699 ◽  
pp. 875-882 ◽  
Author(s):  
Muhammad Rafi Raza ◽  
Faiz Ahmad ◽  
M.A. Omar ◽  
R.M. German ◽  
Ali S. Muhsan
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Injection Molding ◽  
316L Stainless Steel ◽  
Low Cost ◽  
Microstructural Analysis ◽  
Powder Injection ◽  
Laboratory Furnace ◽  
Injection Molded

316L stainless steel is widely used in various industries due to low cost, ease of availability and exceptional combination of mechanical properties along with corrosion resistance as compared to the other available metal alloys. In powder injection molding, debinding is very critical step and improper debinding can change the final properties dramatically. In the present study, affects of debinding on mechanical properties of powder injection molded 316L stainless steel were studied. The prepared feedstocks were molded according to MPIF 50 standard using vertical injection molding machine (KSA100). The plastic binder was removed at 450°C from the molded test samples using two different furnaces i.e. commercial and laboratory furnace followed by the sintering in vacuum, hydrogen, mixture of H2 and N2 (9:1) and nitrogen at 1325°C for 2hr with post sintering cooling rate 3°C/min . Test samples debound in commercially available furnace showed 97% densification and higher mechanical properties. The corrosion resistance was reduced due to presence of residual carbon during thermal debinding. The presence of carbon and formation of carbides and nitrides were confirmed by XRD and microstructural analysis. The results showed that the test samples debound in commercial furnace showed brittle behavior due to the presence of carbides and nitrides. Test samples sintered in N2 showed 96.3% density and tensile strength 751MPa. This value of strength is twice as compared to the sample debound in laboratory furnace followed by the sintering in vacuum. The achieved mechanical properties in vacuum sintered samples were comparable to the wrought 316L stainless steel (according to ASTM standard).

BIODUR 316LS

Alloy Digest ◽  
1995 ◽  
Vol 44 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
316L Stainless Steel ◽  
Heat Treating ◽  
Vacuum Arc ◽  
Improve Corrosion Resistance ◽  
Type 316L ◽  
Type 316L Stainless Steel

Abstract BioDur 316LS stainless steel is a modified version of Type 316L stainless steel to improve corrosion resistance for surgical implant applications. The alloy is vacuum arc remelted. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-596. Producer or source: Carpenter.

FERRO-TIC MS-5

Alloy Digest ◽  
1974 ◽  
Vol 23 (4) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Titanium Carbide ◽  
Physical Properties ◽  
Martensitic Stainless Steel ◽  
Operating Temperature ◽  
Heat Treating ◽  
Steel Matrix ◽  
Unique Combination ◽  
Food Industries

Abstract FERRO-TIC MS-5 is comprised of ultrahard titanium carbide grains cemented by an age-hardenable martensitic stainless steel matrix. Its unique combination of wear, heat and corrosion resistance and toughness make it well suited for abrasion-resistant components in the aerospace, chemical and food industries. Its maximum operating temperature is 850 F. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: TS-269. Producer or source: Chromalloy Metal Tectonics Company.

OUTOKUMPU MODA 410L/4003

Alloy Digest ◽  
2020 ◽  
Vol 69 (12) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Ferritic Stainless Steel ◽  
Low Cost ◽  
Heat Treating ◽  
Low Carbon ◽  
Alloy Steels ◽  
Corrosive Environments

Abstract Outokumpu Moda 410L/4003 is a weldable, extra low carbon, Cr-Ni, ferritic stainless steel that is best suited for mildly corrosive environments such as indoors, where the material is either not exposed to contact with water or gets regularly wiped dry, or outdoors, where some discoloration and superficial rusting are acceptable. It is a low-cost alternative to low-carbon non-alloy steels in certain applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1330. Producer or source: Outokumpu Oyj.

Sign in / Sign up

Export Citation Format

Share Document