Effect of Sintering Temperature and Atmosphere on Corrosion Behavior of MIM 316L Stainless Steel

In the present study, effect of sintering temperature and atmosphere on corrosion behavior of 316L stainless steel specimens manufactured by metal injection molding (MIM) process were investigated. Sintering experiments were carried out at 1320°C, 1370°C and 1375°C under various sintering atmospheres, i.e. Ar+H2, Ar, N2+H2or N2. The corrosion behavior of as-sintered specimens was studied by weight loss immersion test in 5%HCl solution. The results indicated that a better corrosion resistance was accompanied higher density, finer and rounder surface pores. The specimens sintered under Ar+H2atmosphere at 1370°C had little susceptibility to intergranular corrosion.

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Effect of Minor Alloying Elements on the Corrosion Behavior of Fe40Al in NaCl-KCl Molten Salts

International Journal of Corrosion ◽

10.1155/2012/185842 ◽

2012 ◽

Vol 2012 ◽

pp. 1-7 ◽

Cited By ~ 2

Author(s):

G. Salinas ◽

J. G. Gonzalez-Rodriguez ◽

J. Porcayo-Calderon ◽

V. M. Salinas-Bravo ◽

M. A. Espinoza-Medina

Keyword(s):

Weight Loss ◽

Stainless Steel ◽

Corrosion Resistance ◽

Corrosion Rate ◽

Corrosion Behavior ◽

Molten Salts ◽

Electrochemical Techniques ◽

The Other ◽

Type Stainless Steel ◽

Waste Gasification

The hot corrosion behavior of Fe40Al intermetallic alloyed with Ag, Cu, Li, and Ni (1–5 at.%) in NaCl-KCl (1 : 1 M) at 670°C, typical of waste gasification environments, has been evaluated by using polarization curves and weight loss techniques and compared with a 304-type stainless steel. Both gravimetric and electrochemical techniques showed that all different Fe40Al-base alloys have a much higher corrosion resistance than that for stainless steel. Among the different Fe40Al-based alloys, the corrosion rate was very similar among each other, but it was evident that the addition of Li decreased their corrosion rate whereas all the other elements increased it. Results have been explained in terms of the formation and stability of an external, protective Al2O3layer.

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Effect of Elemental Sulfur on Corrosion Behavior of Super 13Cr Martensitic Stainless Steel

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.556-562.162 ◽

2014 ◽

Vol 556-562 ◽

pp. 162-165 ◽

Cited By ~ 1

Author(s):

Shi Dong Zhu ◽

Hai Xia Ma ◽

Jin Ling Li ◽

Zhi Gang Yang

Keyword(s):

Weight Loss ◽

Stainless Steel ◽

Corrosion Resistance ◽

Corrosion Rate ◽

Corrosion Behavior ◽

Elemental Sulfur ◽

Martensitic Stainless Steel ◽

Chemical Elements ◽

Different Temperatures ◽

Corrosion Scales

Effects of elemental sulfur on corrosion behavior of super 13Cr martensitic stainless steel were investigated by utilizing weight loss test, and the micro morphologies and chemical elements of corrosion scales were characterized by using SEM and EDS. The results showed that corrosion resistance of super 13Cr stainless steel was aggravated by the hydrolytic action of sulfur, the corrosion rate of super 13Cr stainless steel increased with the increasing of sulfur content, and firstly increased and then decreased with the increasing of temperature due to the activated adsorption and existential state of sulfur at the different temperatures.

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Corrosion Behavior of AZ91/AZ91-0.4%Nd Alloys in 3.5wt.% NaCl

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.291-294.699 ◽

2013 ◽

Vol 291-294 ◽

pp. 699-702

Author(s):

Ju Mei Zhang ◽

Zhi Hu Wang ◽

Hui Cai ◽

Ming Zhu ◽

Li Bin Niu

Keyword(s):

Weight Loss ◽

Corrosion Resistance ◽

Magnesium Alloy ◽

Corrosion Behavior ◽

Immersion Test ◽

Grain Refining ◽

Az91 Magnesium Alloy ◽

Weight Loss Method ◽

Az91 Magnesium ◽

Loss Method

The microstructure and corrosion behavior of commercial AZ91/AZ91-0.4%Nd alloys were investigated by OM, immersion test and weight-loss method. It was found that the number of Nd element in the AZ91 magnesium alloy has effect on the grain refining efficiency, the coarse β-Mg17Al12phase distributed along the grain boundaries transformed into granular, and the granular or acicular Al3Nd phase precipitated in matrix. The addition of Nd element significantly reduces the corrosion rate of AZ91-0.4%Nd magnesium alloy, as a result the corrosion resistance of alloy was improved obviously.

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The Corrosion Behavior of 316L Stainless Steel Additively Manufactured by Direct Energy Deposition Process

Materials Proceedings ◽

10.3390/cmdwc2021-10053 ◽

2021 ◽

Vol 6 (1) ◽

pp. 13

Author(s):

Tomer Ron ◽

Avi Leon ◽

Amnon Shirizly ◽

Eli Aghion

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Additive Manufacturing ◽

Corrosion Behavior ◽

Energy Deposition ◽

316L Stainless Steel ◽

High Energy ◽

Aisi 316L ◽

Direct Energy Deposition ◽

Direct Energy

Traditional additive manufacturing (AM) technologies tend to focus on powder bed fusion (PBF) methods, such as SLM (selective laser melting) and EBM (electron beam melting), that are attractive for the rapid production of complex components. However, their inherent drawbacks include the high cost of powders, high energy consumption and size limitation. Hence, more affordable and flexible direct energy deposition processes, such as wire arc additive manufacturing (WAAM), are gaining increased interest. This study aims to evaluate the corrosion behavior, including the stress corrosion resistance of 316L stainless steel, produced by the WAAM process. Experimental samples in the form of cylindrical rods were produced by WAAM process using 316L stainless steel wires and compared with their counterpart AISI 316L alloy. The corrosion resistance was evaluated using potentiodynamic polarization, impedance spectroscopy and slow strain rate testing (SSRT). Despite the differences between the microstructures of printed WAAM 316L alloy and its counterpart AISI 316L, the corrosion performance of both alloys in 3.5% NaCl solution was quite similar.

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BIODUR 316LS

Alloy Digest ◽

10.31399/asm.ad.ss0596 ◽

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.

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ENDURAMET 316LN

Alloy Digest ◽

10.31399/asm.ad.ss1219 ◽

2015 ◽

Vol 64 (7) ◽

Keyword(s):

Fracture Toughness ◽

Stainless Steel ◽

Corrosion Resistance ◽

Physical Properties ◽

316L Stainless Steel ◽

Heat Treating ◽

Type 316L ◽

Technology Corporation ◽

Carpenter Technology Corporation ◽

Type 316L Stainless Steel

Abstract EnduraMet 316LN stainless is a nitrogen strengthened version of Type 316L stainless steel. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1219. Producer or source: Carpenter Technology Corporation.

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Analysis of Corrosion of Hastelloy-N, Alloy X750, SS316 and SS304 in Molten Salt High-Temperature Environment

Energies ◽

10.3390/en14030543 ◽

2021 ◽

Vol 14 (3) ◽

pp. 543

Author(s):

Ketan Kumar Sandhi ◽

Jerzy Szpunar

Keyword(s):

Weight Loss ◽

Stainless Steel ◽

Corrosion Resistance ◽

Molten Salt ◽

Corrosion Damage ◽

Nickel Superalloy ◽

Triple Junctions ◽

Salt Corrosion ◽

Molten Fluoride ◽

Stainless Steel 316

Nickel superalloy Hastelloy-N, alloy X-750, stainless steel 316 (SS316), and stainless steel 304 (SS304) are among the alloys used in the construction of molten salt reactor (MSR). These alloys were analyzed for their corrosion resistance behavior in molten fluoride salt, a coolant used in MSR reactors with 46.5% LiF+ 11.5% NaF+ 42% KF. The corrosion tests were run at 700 °C for 100 h under the Ar cover gas. After corrosion, significant weight loss was observed in the alloy X750. Weight loss registered in SS316 and SS304 was also high. However, Hastelloy-N gained weight after exposure to molten salt corrosion. This could be attributed to electrochemical plating of corrosion products from other alloys on Hastelloy-N surface. SEM–energy-dispersive X-ray spectroscopy (EDXS) scans of cross-section of alloys revealed maximum corrosion damage to the depth of 250 µm in X750, in contrast to only 20 µm on Hastelloy-N. XPS wide survey scans revealed the presence of Fe, Cr, and Ni elements on the surface of all corroded alloys. In addition, Cr clusters were formed at the triple junctions of grains, as confirmed by SEM–EBSD (Electron Back Scattered Diffraction) analysis. The order of corrosion resistance in FLiNaK environment was X750 < SS316 < SS304 < Hastelloy-N.

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