Results 31 to 40 of about 58,589 (349)

The effect of solution annealing on properties of steel Nitronic 60 [PDF]

open access: yesMetalurgija, 2011
Nitronic 60 (UNS S21800) is a highly alloyed austenitic stainless steel. This steel provides exceptional wear and galling resistance as well as a high temperature corrosion resistance. Increasing strength of Nitronic 60 is obtained by cold deformation. A
A. Gigović-Gekić, M. Oruč, I. Vitez
doaj  

Study on as-cast microstructure of Fe-15Mn-10Al-5Ni-0.8C low density duplex steel

open access: yesMaterials Research Express, 2022
The microstructure of Fe-15Mn-10Al-5Ni-0.8C low density duplex steel ingots was studied by laser confocal scanning calorimetry , metallographic microscopy and scanning electron microscopy.
Zhihe Guo   +5 more
doaj   +1 more source

Effects of Build Orientations on Microstructure Evolution, Porosity Formation, and Mechanical Performance of Selective Laser Melted 17-4 PH Stainless Steel

open access: yesMetals, 2022
In this study, the effect of phase, microstructure, and porosity in Selective Laser Melting (SLM) on hardness, tensile, and fracture behavior of 17-4 PH was investigated.
Mohammad Azlan Aripin   +6 more
doaj   +1 more source

A new class of carbon stabilized austenitic steels resistant to hydrogen embrittlement [PDF]

open access: yesarXiv, 2023
High strength steels are susceptible to H-induced failure, which is typically caused by the presence of diffusible H in the microstructure. The diffusivity of H in austenitic steels with fcc crystal structure is slow. The austenitic steels are hence preferred for applications in the hydrogen-containing atmospheres.
arxiv  

Nonclassical Austenite-Martensite Interfaces [PDF]

open access: yesLe Journal de Physique IV, 1997
In the last 10 years a new theory of martensitic transformations based on nonlinear elasticity has been developed and intensively studied by J.M. Ball & R.D. James and others. Microstructures are understood in the theory as minimizing sequences for the total free energy, and are conveniently described using Young measures. For the case of the classical
Ball, J., Carstensen, C.
openaire   +5 more sources

On modeling the martensite nucleation on ferromagnetic clusters

open access: yesAdvanced Engineering Research, 2020
Introduction. The study of the austenite magnetic state in steels has provided the mechanism of the external magnetic field impact on steel under the hardening process.
Yu. V. Dolgachev   +3 more
doaj   +1 more source

Nanoscale austenite reversion through partitioning, segregation, and kinetic freezing: Example of a ductile 2 GPa Fe-Cr-C steel [PDF]

open access: yesActa Materialia 60 (2012) 2790-2804, 2012
Austenite reversion during tempering of a Fe-13.6Cr-0.44C (wt.%) martensite results in an ultrahigh strength ferritic stainless steel with excellent ductility. The austenite reversion mechanism is coupled to the kinetic freezing of carbon during low-temperature partitioning at the interfaces between martensite and retained austenite and to carbon ...
arxiv   +1 more source

Austenite growth behavior of Fe-13Cr-5Ni martensitic stainless steel under continuous heating

open access: yes工程科学学报, 2017
Microstructure transformation of Fe-13Cr-5Ni martensitic stainless steel during continuous heating was investigated by optical microscopy, transmission electronic microscopy, X-ray diffraction, and microhardness testing. Experimental results show that at
SONG Peng-cheng   +4 more
doaj   +1 more source

The Kinetics of Phase Transition of Austenite to Ferrite in Medium-Carbon Microalloy Steel

open access: yesMetals, 2021
To reduce energy and resource consumption, high-strength hot-rolled rebars with yield strengths of ≥400 MPa (HRB500) and ≥500 MPa (HRB600) have been designed and produced in recent years.
Liushun Wu, Kunlong Liu, Yun Zhou
doaj   +1 more source

Chemical gradients across phase boundaries between martensite and austenite in steel studied by atom probe tomography and simulation [PDF]

open access: yesActa Materialia vol 59 (2011) 364-374, 2014
Partitioning at phase boundaries of complex steels is important for their properties. We present atom probe tomography results across martensite / austenite interfaces in a precipitation-hardened maraging TRIP steel (12.2 Mn, 1.9 Ni, 0.6 Mo, 1.2 Ti, 0.3 Al; at.%).
arxiv   +1 more source

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