Results 41 to 50 of about 4,684 (195)

Surface Modification of a Nickel-Free Austenitic Stainless Steel by Low-Temperature Nitriding

Metals, 2021
Low-temperature nitriding allows to improve surface hardening of austenitic stainless steels, maintaining or even increasing their corrosion resistance. The treatment conditions to be used in order to avoid the precipitation of large amounts of nitrides ...
Francesca Borgioli, Emanuele Galvanetto, Tiberio Bacci   +2 more
doaj   +1 more source

Effect of Heat Treatment Parameters on Microstructure, Hardness, and Corrosion Resistance of Martensitic Stainless Steel X30Cr13 (AISI 420B)

Materials and Corrosion, EarlyView.
The hardness and corrosion resistance of the martensitic stainless steel X30Cr13 depend directly on the applied heat treatment. This article describes and discusses the relationships between alloy composition, thermodynamic phase stabilities, heat treatment parameters, resulting microstructures, and achievable corrosion resistance. To investigate these
Adrian Evia Ocampo, Saskia Roßberg, Jann Rohr, Paul Rosemann   +3 more
wiley   +1 more source

Predicting the Ms temperature of lean alloyed ferritic–austenitic stainless steels

Journal of Materials Research and Technology
A set of laboratory hot-rolled and thermally cycled 19–22 wt% Cr lean alloyed ferritic–austenitic stainless steels were studied with respect to calculated equilibrium austenite composition and experimental martensite start (Ms) temperature.
Sampo Uusikallio, Aarne Pohjonen, Pentti Kaikkonen, Oskari Haiko, Jukka Kömi   +4 more
doaj   +1 more source

Failure Investigation of Alloy 625 Sockolets After Prolonged Service in an Ammonia Cracker Unit

Materials and Corrosion, EarlyView.
The failure of the sockolets was caused by intergranular cracking and fracture. The thick and highly brittle nitrided layer formed intergranular surface cracks, which propagated along grain boundaries into the base alloy substrate due to the presence of brittle Cr‐rich carbides. ABSTRACT Several sockolets of Alloy 625 operating at 540°C in contact with
Kamlesh Chandra, N. Naveen Kumar, Niraj Kumar   +2 more
wiley   +1 more source

Nickel-free austenitic stainless steels for medical applications

Science and Technology of Advanced Materials, 2010
The adverse effects of nickel ions being released into the human body have prompted the development of high-nitrogen nickel-free austenitic stainless steels for medical applications.
Ke Yang and Yibin Ren
doaj  

Evaluation of Mechanical, Thermal, Rheological, and Biocompatibility Properties of Additively Manufactured Metal‐Reinforced Biocomposites Optimized by Reinforcement Ratios and Printing Parameters

Polymer Composites, EarlyView.
Schematic illustration of PLA/316L stainless steel composite filament production via fused deposition modeling, demonstrating the trade‐off between stainless steel content, mechanical enhancement, and biocompatibility. ABSTRACT Polylactic acid (PLA) is a biodegradable thermoplastic widely used in biomedical devices; however, its inherent brittleness ...
İbrahim Baki Sahin, Bayram Sercan Bayram, Begum Pinarbasi, Pınar Yilgor, Berzah Yavuzyegit, İhsan Korkut   +5 more
wiley   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Understanding the effect of decreasing C contents and increasing solid-solution time on intergranular corrosion resistance of 304 austenitic stainless steel

Journal of Materials Research and Technology
The purpose of this study is to investigate the intergranular corrosion resistance mechanism of 304 austenitic stainless steel treated by decreasing C contents and increasing the solid-solution treatment time.
Shaobin Bai, Shaohua Zhang, Jinyu Ma, Jingyang Li, Liming Mou   +4 more
doaj   +1 more source

Mix structure of high nitrogen austenitic stainless steel and 316L stainless steel formed by wire and arc additive manufacturing based on size controlling of beads

Cailiao gongcheng, 2020
Wires of high nitrogen austenitic stainless steel and 316L stainless steel were used, the surface forming characteristics of single bead, single-bead multi-layer and single-layer multi-bead were analyzed on high nitrogen austenitic stainless steel ...
YAO Xiang-hong, ZHOU Qi, WANG Ke-hong, ZHANG Xiao-yong   +3 more
doaj   +1 more source

Thermodynamic calculation of phase equilibria in stainless steels [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2012
In this paper two examples of thermodynamic investigation of stainless steels using both, experimental and modeling approach are described. The ferritic-austenitic duplex stainless steel and austenitic stainless steel were investigated using thermal ...
Klančnik G., Petrovič Steiner D., Medved J.   +2 more
doaj   +1 more source