Results 41 to 50 of about 3,765,299 (160)

A thermo-metallurgical-mechanical model for microstructure evolution in laser-assisted robotic roller forming of ultrahigh strength martensitic steel

Journal of Materials Research and Technology, 2023
Laser-assisted robotic roller forming (LRRF) apparatus and process were developed to bend a plate to form a straight channel for ultrahigh strength steel MS1300.
Yi Liu, Jincheng Wang, Wayne Cai, Blair E. Carlson, Junhe Lian, Junying Min   +5 more
doaj   +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

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

Effects of austenitization temperature on the microstructure of 15BCr30 and PL22 boron steels [PDF]

Materials Research, 2013
This paper studies boron precipitation and segregation at austenitic grain boundaries for low carbon boron steels types: PL22 and 15BCr30. The following parameters were evaluated: percentage of martensite/bainite, size and nucleation sites of austenitic ...
C. A. Suski, C.A.S de Oliveira
doaj   +3 more sources

High-temperature quality of accelerated spheroidization on SUP9 leaf spring to enhance machinability

Heliyon, 2018
The high temperature on the austenitization showed the varied results in the fast spheroidization in high carbon leaf spring steel SUP9/55CrMnA. The heating temperature was held for 15 minutes in the austenitization temperature at 800, 850, and 900 °C ...
Hendri Chandra, Diah Kusuma Pratiwi, Muhammad Zahir   +2 more
doaj   +1 more source

Modeling research on laser quenching process of GCr15 bearing steel basing on material properties obtained with experimental methods

Materials Research Express, 2021
A combination of temperature and microstructure prediction models for the laser quenching process of GCr15 bearing steel was established. The thermo-physical parameters and austenitizaiton kinetics of GCr15 bearing steel were obtained with the laser ...
Zhiqiang Li, Zhi Wen, Fuyong Su
doaj   +1 more source

Fatigue Strength in Additive Toolmaking: A Study of Metal Binder Jetting and Electron Beam Melting for Processing Carbide‐Rich Cold‐Work Tool Steels

steel research international, EarlyView.
Focusing on the critical tap hole region of the blast furnace, this work examines binder characteristics, prepares tap hole clay with different formulations, and evaluates their physical properties. The findings confirm the advantages of composite binders and offer a new binder option for tap hole clay.
Frederik Tegeder, Lennart Mirko Scholl, Sandra Wieland, Christian Weck, Marie Franke‐Jurisch, Alexander Bezold, Thomas Weißgärber, Christoph Broeckmann   +7 more
wiley   +1 more source

Precipitation in a novel maraging steel F1E:A study of austenitization and aging using small angle neutron scattering [PDF]

, 2017
The effect of austenitization temperature, aging temperature, and, aging time on the development of precipitates in a novel maraging steel known as F1E was investigated.
Perkins, K., T. Martin, D. Galvin, Martin, T., Rawson, M., L. Sun, Hill, P., M. Rawson, Sun, L., Karen Perkins, V. Gray, Gray, V., E.P. Gilbert, P. Hill, K. Perkins, Gilbert, E. P., Galvin, D., Veronica Gray   +17 more
core   +1 more source

The Role and Modeling of Ultrafast Heating in Isothermal Austenite Formation Kinetics in Quenching and Partitioning Steel

Metals
A modified Johnson–Mehl–Avrami–Kolmogorov (JMAK) model, including the heating rates, was proposed in this study to improve the accuracy of isothermal austenite formation kinetics prediction.
Jiang Chang, Mai Wang, Xiaoyu Yang, Yonggang Yang, Yanxin Wu, Zhenli Mi   +5 more
doaj   +1 more source

In Situ Alloying of H13 Tool Steel With TiC via PBF‐LB/M

steel research international, EarlyView.
H13 tool steel is in situ alloyed with titanium carbides (TiC) in amounts up to 30 wt.%. This approach offers the advantage that the carbides melt only partially during processing, preventing excessive carbon enrichment of the steel matrix. The resulting microstructure consists of coarse, undissolved and fine, reprecipitated carbides, leading to grain ...
Oliver Bürgi, Anke Kaletsch, Christoph Broeckmann   +2 more
wiley   +1 more source