scholarly journals Corrosion Behavior and Mechanical Properties of AISI 316 Stainless Steel Clad Q235 Plate

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 552 ◽  
Author(s):  
Andrea Di Schino ◽  
Claudio Testani
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Microalloyed Steel ◽  
Standard Test ◽  
Coarse Grained ◽  
Stress Relieving ◽  
Aisi 316 Stainless Steel ◽  
Critical Pitting Temperature ◽  
American Society

This paper deals with carbon steel and stainless steel clad-plate properties. Cladding is performed by the submerged-arc welding (SAW) overlay process. Due to element diffusion (Fe, Cr, Ni, and Mn), a 1.5 mm wide diffusion layer is formed between the stainless steel and carbon steel interface of the cladded plate affecting corrosion resistance. Pitting resistance is evaluated by measuring the critical-pitting temperature (CPT), as described in the American Society for Testing and Materials (ASTM) G-48 standard test. Additionally, Huey immersion tests, in accordance with ASTM A262, Type C, are carried out to evaluate the intergranular corrosion resistance. Some hardness peaks are detected in microalloyed steel close to the molten interface line in the coarse-grained heat-affected zone (CGHAZ). Results show that stress-relieving treatments are not sufficient to avoid hardness peaks. The hardness peaks in the CGHAZ of the microalloyed steel disappear after quenching and tempering (Q and T).

scholarly journals HEAT TREATMENT EFFECT ON INTERFACE MICROSTRUCTURE AND HARDNESS OF A MEDIUM CARBON STEEL CLADDED BY AISI 316 STAINLESS STEEL

2020 ◽  
Vol 26 (3) ◽  
pp. 111-115
Author(s):  
Andrea Di Schino
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Medium Carbon Steel ◽  
Alloyed Steel ◽  
Coarse Grained ◽  
Stress Relieving ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316 ◽  
Micro Alloyed Steel ◽  
Submerged Arc

This paper focuses on carbon steel/stainless steel clad plate properties. The cladding was performed by submerged arc welding (SAW) overlay process. Following chemical element diffusion a  diffusion layer is formed between stainless steel and carbon steel interface of the cladded plate. Some hardness peaks were detected in the micro-alloyed steel close to the molten interface line in the coarse grained heat affected zone (CGHAZ). Results show that a stress relieving treatment is not sufficient to avoid hardness peaks. On the other hand, the hardness peaks in the CGHAZ of the micro-alloyed steel disappeared after quenching and tempering (Q&T).

ATI 409HP

Alloy Digest ◽  
2013 ◽  
Vol 62 (2) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Carbon Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Ferritic Stainless Steel ◽  
Temperature Performance ◽  
End Use ◽  
Oxidation And Corrosion

Abstract ATI 409HP (UNS S40900) ferritic stainless steel was introduced by ATI Allegheny Ludlum to provide improved oxidation and corrosion resistance for automotive exhaust systems in comparison to carbon steel. The alloy was designated "MF-1", indicating its end use: automotive mufflers. The good fabricability of this alloy, combined with its basic corrosion resistance and economy have significantly broadened the utility of ATI 409HP stainless steel. ATI 409HP consists of four grades: UNS S40900, S40910, S40920, and S40930. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, machining, and joining. Filing Code: SS-1135. Producer or source: Allegheny Technologies Inc..

SANDVIK 3R12/4L7

Alloy Digest ◽  
1996 ◽  
Vol 45 (7) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Black Liquor ◽  
Heat Treating ◽  
304L Stainless Steel ◽  
Design Load ◽  
Recovery Boilers ◽  
Major Application ◽  
Outside Diameter

Abstract Sandvik 3R12/4L7 is a composite tube consisting of type 304L stainless steel for corrosion resistance on the outside diameter and having carbon steel (A210 Gr. A1) as the inside component for both water wetted service and the design load. The major application is tubing to handle the corrosive conditions in black liquor recovery boilers. This datasheet provides information on composition, physical properties, microstructure as well as fatigue. It also includes information on forming, heat treating, and joining. Filing Code: SA-482. Producer or source: Sandvik.

scholarly journals Effect of Heat Treatment on the Microstructure and Corrosion Resistance of Stainless/Carbon Steel Bimetal Plate

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Hao Li ◽  
Liyuan Zhang ◽  
Boyang Zhang ◽  
Qingdong Zhang
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Carbon Content ◽  
Carbon Diffusion ◽  
Annealing Process ◽  
Stainless Steel Surface ◽  
Surface Corrosion ◽  
Annealing Conditions

In order to research the effect of heat treatment on the microstructure and corrosion resistance of stainless/carbon steel bimetal plate, the annealing process at 700°C with different times was carried out for stainless/carbon steel bimetal plate. Because the carbon content of carbon steel was higher than that of stainless steel, the carbon would diffuse from carbon steel to stainless steel in the bimetal plate during the annealing process. The carbon diffusion would cause the thickness of the decarburized layer in carbon steel and the carbon content of stainless steel to increase. The carbon diffusion would be ongoing with the annealing process until the carbon content of stainless steel reached 0.08%. The higher carbon content could help in the formation of more chromium-depleted regions in the stainless steel surface, causing the stainless steel in the bimetal plate to have a poorer surface corrosion resistance than that of stainless steel under the same annealing conditions.

scholarly journals Evaluation of Heat-Treated AISI 316 Stainless Steel in Solar Furnaces to Be Used as Possible Implant Material

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 581
Author(s):  
Ioan Milosan ◽  
Monica Florescu ◽  
Daniel Cristea ◽  
Ionelia Voiculescu ◽  
Mihai Alin Pop ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Solar Energy ◽  
Heat Treatments ◽  
Solar Furnace ◽  
316 Stainless Steel ◽  
Heat Treated ◽  
Aisi 316 Stainless Steel ◽  
Aisi 316

The appropriate selection of implant materials is very important for the long-term success of the implants. A modified composition of AISI 316 stainless steel was treated using solar energy in a vertical axis solar furnace and it was subjected to a hyper-hardening treatment at a 1050 °C austenitizing temperature with a rapid cooling in cold water followed by three variants of tempering (150, 250, and 350 °C). After the heat treatment, the samples were analyzed in terms of hardness, microstructure (performed by scanning electron microscopy), and corrosion resistance. The electrochemical measurements were performed by potentiodynamic and electrochemical impedance spectroscopy in liquids that simulate biological fluids (NaCl 0.9% and Ringer’s solution). Different corrosion behaviors according to the heat treatment type have been observed and a passivation layer has formed on some of the heat-treated samples. The samples, heat-treated by immersion quenching, exhibit a significantly improved pitting corrosion resistance. The subsequent heat treatments, like tempering at 350 °C after quenching, also promote low corrosion rates. The heat treatments performed using solar energy applied on stainless steel can lead to good corrosion behavior and can be recommended as unconventional thermal processing of biocompatible materials.

Study on Corrosion Resistance of Carbon Steel/Stainless Steel Composite Pipe

2013 ◽  
Vol 423-426 ◽  
pp. 212-218
Author(s):  
Shu Yun Gou ◽  
Yu He Li
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Alloy Element ◽  
Chemical Compositions ◽  
Distribution Maps ◽  
Compound Casting ◽  
Composite Pipe ◽  
Steel Composite

The carbon steel/stainless steel composite pipe was prepared by centrifugal compound casting-hot extrusion-cold rolling. SEM was employed in detecting the microstructure and alloy element distribution maps in stainless steel of composite pipe. The mechanical properties were measured through tensile test. The corrosion resistance of the composite pipe was detected in acid, alkali and salt solutions. The results show that the outer and inner layers are integrated with good metallurgical behavior, and the mechanical properties of the composite pipe are satisfactory, the chemical compositions are well-distributed. The grain-boundary corrosion test is qualified. This composite pipe has better corrosion resistance in 10%H2SO4and 10%NaOH solution than in FeCl3solution at room temperature.

scholarly journals COMPARATIVE ANALYSIS OF STEEL CORROSION RESISTANCE

2020 ◽  
Vol 1 (2) ◽  
pp. 12-17
Author(s):  
Chao Zhang ◽  
Xiang Yin ◽  
Chun Qing
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Comparative Analysis ◽  
Carbon Steel ◽  
Salt Spray ◽  
Steel Corrosion ◽  
Immersion Test ◽  
Time Interval ◽  
Regular Time ◽  
Threshold Ratio

The objective of the study was to conduct the comparative analysis of steel types corrosion resistance. Three selected steel types were used in the study. The selected types were structural steel, stainless steel, and MMFX steel. The methodology we adopted is that we evaluated the steel parts resistance towards corrosion by doing in-salt spray experiment and the immersion of aqueous solution of sodium chloride. For salt spray test, we used guidelines by ASTM B117. This practice provides a controlled corrosion environment which is used for exposing specimen to salt spray chamber. For immersion test, test specimens are analyzed at regular time interval as the first rust is appeared. For carbon steel, we used three specimen and mostly initial rust appeared in initial 13 to 15 hours. For stainless steel, inter granular corrosion were analyzed. The results show that the first cycle started after about 46 hours; the second cycle started about 1% and the third cycle started with the rage of about 2 to 30%. For MMFX 2 steel, the results show that for MMFX carbon steel, the chloride threshold ratio is about 6 times higher than black bars and more than double of other types. The conclusion of the study is that in big structures like bridges, the MMFX steel should be used.

scholarly journals Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4272
Author(s):  
Xiao-qin Zha ◽  
Yi Xiong ◽  
Tian Zhou ◽  
Yong-feng Ren ◽  
Peng-hui Hei ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Residual Stress ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Duplex Stainless Steel ◽  
Welded Joints ◽  
Stress Relief ◽  
2205 Duplex Stainless Steel ◽  
Ultrasonic Peening ◽  
Stress Relieving

Stress relief treatments were carried out separately with a pneumatic chipping hammer, ultrasonic peening treatment, and heat treatment for metal active-gas welding (MAG) welded joints of 2205 duplex stainless steel. The effects of these methods on the residual stress, microstructure, mechanical properties and corrosion resistance of welded joints were studied. Results show the stress state of the weld and the surrounding area was effectively improved by the pneumatic chipping hammer and ultrasonic peening treatment, and the residual stress field of the surface layer changed from tensile stress to compressive stress. On the contrary, low-temperature stress relieving annealing had no obvious effect on stress distribution. After the pneumatic chipping hammer and ultrasonic peening treatment, the welded joints were machined and hardened. Correspondingly, strength and hardness were improved. However, the heat treatment only led to a slight decrease in strength and hardness due to the static recovery of the welded joint structure. All stress relief methods effectively improved the corrosion resistance of welded joints, with the ultrasonic peening treatment giving the best performance.

UNILOY 303, 303Se

Alloy Digest ◽  
1990 ◽  
Vol 39 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Heat Treating ◽  
General Purpose

Abstract UNILOY 303 and 303Se are improved machinability grades of 18-8 general purpose austenitic stainless steels. Machinability is respectively improved by additions of sulfur or selenium. Whereas standard 18-8 stainless steel had a machinability rating about 40-50% that of AISI B1112 free-machining carbon steel, these steels have a rating of about 70% that of AISI B1112. UNILOY 303Se is preferred over UNILOY 303 where machined finish and good cold formability and corrosion resistance are desired. This datasheet provides information on composition, physical properties, hardness, elasticity, 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-512. Producer or source: Cytemp Cyclops.

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