Results 11 to 20 of about 4,525 (236)
From Austenitic Stainless Steel to Expanded Austenite-S Phase: Formation, Characteristics and Properties of an Elusive Metastable Phase [PDF]
Metals, 2020 Austenitic stainless steels are employed in many industrial fields, due to their excellent corrosion resistance, easy formability and weldability. However, their low hardness, poor tribological properties and the possibility of localized corrosion in ...
Francesca Borgioli
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Chemical Load-Induced Surface Nanocrystallization in Nitrided Martensitic Stainless Steel [PDF]
NanomaterialsSurface nanocrystallization is a critical approach for improving mechanical and functional properties of materials. Beyond conventional mechanical routes, chemical loading presents a promising pathway for nanocrystallization via interstitial-driven phase
Xu Yang, Honglong Che, Mingkai Lei
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Stability of Expanded Austenite During Annealing in Vacuum. [PDF]
Materials (Basel)In situ X-ray diffraction has been used to investigate the stability of expanded austenite during annealing in vacuum for the austenitic stainless steel 316Ti, the super-austenitic stainless steel 904L, and the duplex steel 318LN. Expanded austenite has been formed using plasma immersion ion nitriding before.
Mändl S, Oh H, Hristov D, Manova D.
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On the elusive crystal structure of expanded austenite [PDF]
Scripta Materialia, 2017 Abstract No consistent structural description exists for expanded austenite that accurately accounts for the hkl -dependent peak shifts and broadening observed in diffraction experiments. The best available description for homogeneous samples is a face-centered cubic lattice with stacking faults. Here Debye simulations of stacking fault effects were
Brink, Bastian +5 more
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INSTRUMENTED MICROSCRATCH TESTS USAGE FOR STUDY OF EXPANDED AUSTENITE PROPERTIES [PDF]
Tecnologia em Metalurgia, Materiais e Mineração, 2015 Corrosion resistance and poor mechanical properties are both characteristics of AISI 316 austenitic stainless steel. Nitrogen supersaturated expanded austenite, or S-phase, promotes surface hardening of the alloy without the formation of undesirable ...
Fernando Luis Sato +3 more
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Pancake-like antiphase domains in perfect nitrogen-expanded austenite by TEM characterization
Materials Research Express, 2023 Elongated superstructure diffraction spots were observed in perfect nitrogen-expanded austenite without stress or plastic strain, which was prepared by plasma-based low-energy nitrogen-ion implanting Fe-Cr-Ni austenitic alloy foils at low temperature of ...
H L Che, X Yang, M K Lei
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Measurement and tailoring of residual stress in expanded austenite on austenitic stainless steel [PDF]
Materials Science and Engineering: A, 2017 Abstract Expanded austenite on stainless steel with a high interstitial nitrogen content is characterized by elasto-plastic accommodation of the large composition-induced lattice expansion leading to huge compressive residual stress. The elasto-plastic accommodation as well as the (steep) concentration profile has implications for the measurement ...
Fernandes, Frederico Augusto Pires +3 more
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Modelling the evolution of composition-and stress-depth profiles in austenitic stainless steels during low-temperature nitriding:Paper [PDF]
Materials Performance and Characterization, 2016 ABSTRACT Expanded austenite is a supersaturated solid solution of nitrogen/carbon in austenite that forms as a case by the diffusion of nitrogen/carbon into austenitic stainless steel. Expanded austenite has a high level of hardness that provides resistance against galling and wear, superior resistance against localized corrosion, and ...
Hattel, Jesper Henri +2 more
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ACS Applied Materials & Interfaces, 2013 Ferromagnetic single crystalline [100], [110], and [111]-oriented expanded austenite is obtained by plasma nitriding of paramagnetic 316L austenitic stainless steel single crystals at either 300 or 400 °C. After nitriding at 400 °C, the [100] direction appears to constitute the magnetic easy axis due to the interplay between a large lattice expansion ...
Menéndez, Enric +6 more
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Expanded austenite; from fundamental understanding to predicting composition- and stress-depth profiles [PDF]
, 2018 The case developing during low temperature surface hardening of austenitic stainless steel by nitriding, carburising or nitrocarburising consists of a supersaturated interstitial solid solution of nitrogen and/or carbon in austenite. The favorable properties of this so-called expanded austenite depend on the profiles of interstitial concentration and ...
Christiansen, Thomas L. +2 more
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