Results 11 to 20 of about 1,053 (210)
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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Characterization of the expanded austenite developed on AISI 316 LM steel by plasma nitriding [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2017 AISI 316 LM samples were plasma nitrided at a temperature of 380°C for different times between 0.5 and 8 h in a 85%N2- 15%H2 gas mixture. Different experimental techniques such as: optical microscopy (OM), X- ray diffraction (XRD ) and glow ...
Keddam M. +3 more
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Depth-Resolved Phase Analysis of Expanded Austenite Formed in Austenitic Stainless Steel [PDF]
Coatings, 2020 Expanded austenite γN formed after nitrogen insertion into austenitic stainless steel and CoCr alloys is known as a hard and very wear resistant phase. Nevertheless, no single composition and lattice expansion can describe this phase with nitrogen in solid solution.
Darina Manova +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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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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Residual Stress in Expanded Austenite on Stainless Steel; Origin, Measurement, and Prediction [PDF]
Materials Performance and Characterization, 2018 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 ...
Marcel A. J. Somers +6 more
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Lattice expansion of carbon-stabilized expanded austenite
Scripta Materialia, 2010 The lattice parameter of expanded austenite was determined as a function of the content of interstitially dissolved carbon in homogeneous, carburized thin stainless steel foils. For the first time this expansion of the face-centered cubic lattice is determined on unstrained austenite.
Thomas S. Hummelshøj +2 more
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Metals, 2023 The existence and formation of expanded austenite in ferritic stainless steels remains a subject of debate. This research article aims to provide comprehensive insights into the formation and decomposition of expanded austenite through in situ structure ...
Bruna C. E. Schibicheski Kurelo +7 more
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On the interstitial induced lattice inhomogeneities in nitrogen-expanded austenite [PDF]
Scripta Materialia, 2020 Lattice inhomogeneities, i.e. nitrogen interstitial-induced hexagonal-close-packed martensite (HCP-εN) and shear bands, can form in face-centred cubic nitrogen-expanded austenite (FCC-γN) synthesised on Fe-Cr-Mn and Fe-Cr-Ni austenitic stainless steel (ASS) using triode-plasma nitriding (TPN). Homogenous elemental distribution between HCP-εN and FCC-γN
Xiao Tao +4 more
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Low Temperature Carburizing of Stainless Steels and the Development of Carbon Expanded Austenite* [PDF]
HTM Journal of Heat Treatment and Materials, 2022 Abstract Low-temperature carburizing dramatically enhances the inherently low wear resistance of austenitic stainless steels due to the formation of a carbon-supersaturated solid solution, i.e. expanded austenite.
Werner, K. V. +4 more
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