Effect of heat treatment on microstructure, mechanical and corrosion properties of austenitic stainless steel 316L using arc additive manufacturing

In the present work, a nanocrystalline nickel-free stainless steels as well as nickel-free stainless steel/hydroxyapatite nanocomposites have been synthesized by the combination of mechanical alloying (MA), heat treatment and nitriding. The microhardness of the final bulk material was studied using Vickers method. Corrosion potentiodynamic tests were performed in Ringer’s solution. The results show that nickel-free stainless steel/hydroxyapatite nanocomposites could be promising bionanomaterials for use as a hard tissue replacement implants.

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Effect of Heat Input on the Microstructural, Mechanical, and Corrosion Properties of Dissimilar Weldment of Conventional Austenitic Stainless Steel and Low-Nickel Stainless Steel

Metallography Microstructure and Analysis ◽

10.1007/s13632-020-00681-y ◽

2020 ◽

Vol 9 (5) ◽

pp. 668-677

Author(s):

Vipin Tandon ◽

Manish A. Thombre ◽

Awanikumar P. Patil ◽

Ravindra V. Taiwade ◽

Himanshu Vashishtha

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Fusion Zone ◽

Heat Input ◽

Dissimilar Welding ◽

Input Process ◽

Stainless Steel 316L ◽

Corrosion Properties ◽

Gas Tungsten Arc ◽

Mechanical And Corrosion Properties

AbstractIn the present investigation, an attempt has been made to investigate the replacement compatibility of conventional austenitic stainless steel (316L) with low-Ni austenitic stainless steel (201) by employing their dissimilar welding using gas tungsten arc welding technique with varying heat input. The effects of heat input on the microstructural, mechanical, and corrosion properties were studied. The result depicts the balanced austenite/ferrite content in the fusion zone for both the heat inputs. The low heat input process, which results in a faster cooling rate, demonstrates higher tensile strength and microhardness. Similarly, the pitting corrosion resistance of the fusion zone demonstrates better properties on the low heat input process attributed to the lesser dendritic length and lesser interdendritic arm spacing.

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Mechanical and Corrosion Properties of High Strength 18% Cr Austenitic Stainless Steel Weldment for Boiler.

ISIJ International ◽

10.2355/isijinternational.35.1258 ◽

1995 ◽

Vol 35 (10) ◽

pp. 1258-1264 ◽

Cited By ~ 7

Author(s):

Kazuhiro Ogawa ◽

Yoshiatsu Sawaragi ◽

Nobuo Otsuka ◽

Hiroyuki Hirata ◽

Atsushi Natori ◽

...

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

High Strength ◽

Corrosion Properties ◽

Steel Weldment ◽

Mechanical And Corrosion Properties ◽

Stainless Steel Weldment

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Effect of post-weld heat treatment on microstructure and corrosion properties of multi-layer super duplex stainless steel welds

Materials Testing ◽

10.1515/mt-2021-0015 ◽

2021 ◽

Vol 63 (9) ◽

pp. 791-796

Author(s):

Lei Tian ◽

Zhanqi Gao ◽

Yongdian Han

Keyword(s):

Heat Treatment ◽

Stainless Steel ◽

Duplex Stainless Steel ◽

Welded Joints ◽

Post Weld Heat Treatment ◽

Super Duplex Stainless Steel ◽

Corrosion Properties ◽

Austenite Content ◽

Mechanical And Corrosion Properties ◽

Weld Heat

Abstract To investigate the influence of post-weld heat treatment on the microstructure and corrosion properties of super duplex stainless steel welded joints, multi-layer multi-pass welding of 2507 super duplex stainless steel by tungsten argon arc welding was performed using an ER2594 welding wire. The microstructures of the welded joints before and after post-weld heat treatment at 1150 °C, 1170 °C and 1190 °C were observed, and the mechanical and corrosion properties were tested. The post-weld heat treatment changed the austenite content and morphology of the welded joint and improved the corrosion resistance of different parts of the weld metal. The choice of various solution heat treatment temperatures affected the change in austenite content in the weld zone and the degree of diffusion and homogenization of the alloy elements. After post-weld heat treatment at 1170 °C, the two-phase ratios in each area of the weld were the most suitable and uniform, and the overall mechanical and corrosion properties of the joint were more uniform.

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Mechanical and Corrosion Properties of a F138 Austenitic Stainless Steel after Deformation by Equal Channel Angular Pressing

Materials Science Forum ◽

10.4028/www.scientific.net/msf.783-786.837 ◽

2014 ◽

Vol 783-786 ◽

pp. 837-841

Author(s):

Andrea Madeira Kliauga ◽

V.L. Sordi ◽

Maurizio Ferrante ◽

C.A. Rovere ◽

S.E. Curi

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Equal Channel Angular Pressing ◽

Equivalent Strain ◽

X Ray Diffraction ◽

Corrosion Properties ◽

Angular Pressing ◽

Transmission Electron ◽

Heat Treated ◽

Mechanical And Corrosion Properties

A F138 austenitic stainless steel was solution heat treated, deformed by equal-channel angular pressing (ECAP) at 25 and 300°C. The equivalent strain was ~0.7 per pass and the applied equivalent strain varied from 0.7 to 2.8. Microstructure evolution was observed by transmission electron microscopy (TEM) electron back-scattered diffraction (EBSD) and X –ray diffraction. Work hardening behavior was studied by making use of Kocks-Mecking plots and hardness measurements, the influence of deformation on corrosion resistance was evaluated recording anodic polarization curves in 0.9% NaCl solution.

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