Results 121 to 130 of about 3,109,044 (287)

Austenite stability in TRIP steels studied by synchrotron radiation

, 2014
Radiation Science and ...
openaire   +3 more sources

Influence of Competitive C–P Segregation on Austenite Grain Growth in Iron Alloys

steel research international, EarlyView.
This study investigates how carbon influences phosphorus‐induced solute drag effects during isothermal annealing of austenite grain growth in Fe–C–P alloys. Using in situ high‐temperature laser scanning confocal microscopy and density functional theory simulations, it demonstrates that carbon above a critical temperature significantly reduces P ...
Maximilian Kern, Michael Bernhard, Daniel Scheiber, Matthias Militzer, Christian Bernhard   +4 more
wiley   +1 more source

Improving mechanical properties and retained-austenite stability of a medium carbon Q&P steel by adjusting phase ratio

Materials Science & Engineering: A, 2022
X.X. Dong, Y. Shen, N. Jia, Y. Zhu
semanticscholar   +1 more source

Multifaceted Behavior and Functional Versatility of Ferritic Stainless Steels, Part I: Applications and Processing, a Review

steel research international, EarlyView.
This review investigates the processing‐microstructure‐property relationships in ferritic stainless steels (FSSs). It highlights advances in deformation behavior, heat treatments, surface modifications, and alloying effects. Theoretical models, including Johnson‐Mehl‐Avrami‐Kolmogorov, Arrhenius, nucleation theory, and diffusion theories, are discussed
Shahab Bazri, Carlo Mapelli, Silvia Barella, Andrea Gruttadauria, Davide Mombelli   +4 more
wiley   +1 more source

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

steel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

A priori error estimates for the optimal control of laser surface hardening of steel [PDF]

, 2010
A priori error estimates for the optimal control of laser surface hardening of ...
Amiya K, Gupta Nupur, Nataraj Neela, Neela Nataraj A. K. Pani, Nupur Gupta, Pani Amiya K   +5 more
core   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Minimization of Porosity in E11018‐G Low‐Alloyed Steel Processed by Laser Powder Directed Energy Deposition

steel research international, EarlyView.
The processability of the E11018‐G by laser powder directed energy deposition (LP‐DED) is investigated. The effects of powder moisture, ambient humidity, and laser remelting on LP‐DED parts’ porosity are shown. A strong influence of the atomizing gas is observed.
Josu López‐López, Florencia Schiopetto, Itziar Ruiz‐Moraza, Iñigo Pérez‐Casero, Ernesto Urionabarrenetxea, Carmen Luno‐Bilbao, Angela Veiga, Sergio Ausejo   +7 more
wiley   +1 more source

Synergistic effects of cryogenic treatment and tempering on mechanical and microstructural properties of M42 HSS

Next Materials
High-speed steel (HSS) tools like M42 must perform well in precision machining applications that require hardness, stability, and wear resistance. The liquid nitrogen cryogenic treatment turns retained austenite into martensite and precipitates fine ...
Anish R, Binu C. Yeldose, Hitha P S, Mathew J. Joseph, Rohan Kurian, Jestin Sunny, Sanoop Satheesan, J.B. Sajin   +7 more
doaj   +1 more source

Comparison of Intergranular Corrosion Resistance and Hardness between Nitrogen and Carbon Martensites in Stainless Steels

steel research international, EarlyView.
By applying solution heat treatment after plasma nitriding, followed by requenching and tempering, researchers successfully obtained nitrogen‐rich martensite on AISI 409. This study compares the intergranular corrosion resistance and hardness of nitrogen‐rich martensite in AISI 409 with carbon‐rich martensite in AISI 420.
Pedro Victorio Caetano Abrantes Quadros, Elisiane Maria Berton, Paulo César Borges   +2 more
wiley   +1 more source