Results 81 to 90 of about 1,365 (217)

Analyses of the Deformability and Chemistry of Non‐Metallic Inclusions in QT Steels With Increased Recycling‐Induced Tramp Element Content

steel research international, EarlyView.
This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka, Isabell Gruber, Gerald Klösch, Susanne Katharina Michelic   +3 more
wiley   +1 more source

Development of innovative steels and thermo-mechanical treatments for DEMO high operating temperature blanket options

Nuclear Materials and Energy, 2018
Among the options currently taken into account for the realization of the first DEMO reactor there are the “helium-cooled” and the “dual coolant” breeding blanket.
C. Cristalli, L. Pilloni, O. Tassa, L. Bozzetto, R. Sorci, L. Masotti   +5 more
doaj   +1 more source

Insights Into Paint‐Bake Toughening of Resistance Spot Welds of a 2.0 GPa Warm‐Stamped Medium‐Mn Steel

steel research international, EarlyView.
Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan, Savyasachi Nellikode, YeoJin Jang, Sumin Lee, Dileep Chandran Ramachandran, Sung‐bo Heo, Jinyoung Lee, Young‐Kook Lee, Yeong‐Do Park   +8 more
wiley   +1 more source

Influence of Tramp Elements on Phase Transformations, Structure, and Properties of Scrap‐Based Steels: A Focused Review of Recent Developments

steel research international, EarlyView.
This review explains how impurities from recycled scrap affect steel production and performance. Even small amounts (far below 1%) of these impurities can change how steel behaves during fabrication but also affect the properties of the end product. With better understanding and targeted countermeasures, these challenges can be managed, enabling wider ...
Oleksandr Glushko, Ronald Schnitzer
wiley   +1 more source

Influence of Chromium Carbide Size on the Austenitization Kinetics of a Martensitic Stainless Steel Measured by Dilatometry

, 2011
The use of martensitic stainless steels is commonly due to high mechanical properties requirements. To obtain these high values from the industrial material (whose microstructure consists in ferrite and M23C6carbides), a suitable heat treatment ...
Thomas Fröhlich, Jean Denis Mithieux, Valérie Kostoj   +2 more
core   +1 more source

Tailoring Microstructure and Hardness in Maraging 300 Steel via 2.4 wt.% Niobium Addition and Controlled Aging Treatments

steel research international, EarlyView.
High Nb (2.4 wt.%) addition to Maraging 300 steel drives lattice distortion and nanoscale Nb–Mo‐rich precipitation, confirmed by energy‐dispersive X‐ray spectroscopy mapping (Mo ~5.4 wt.%, Nb ~2.5 wt.%). Nanoindentation reveals strong matrix hardening (H >4.8 GPa) at 480°C aging, while 560°C induces ~1.92 vol.% reverted austenite, enabling tunable ...
Laylla Sharon B. Peixoto, Mohammad Masoumi, Luís Henrique N. de Lima, Marcos Natan da Silva Lima, Luis Flávio Gaspar Herculano, Isabel Ferreira de Barros, Geronimo Perez, Maria Vittoria Moraschini Reis, Hamilton Ferreira Gome Abreu, Marcelo J. Gomes da Silva   +9 more
wiley   +1 more source

Phase Transformations in the Al-Si Coating during the Austenitization Step

, 2011
Nowadays more and more hot stamped steel sheets dedicated for the automotive body-in-white structure are pre-coated to prevent the steel surface against iron oxidation and decarburization during the austenitization step.
Abdelkrim Redjaïmia, Pascal Drillet, Jean Michel Mataigne, Raisa Grigorieva   +3 more
core   +1 more source

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

steel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Effect of Austenitization Conditions on the Transformation Behavior of Low Carbon Steel Containing Ti–Ca Oxide Particles

, 2019
Inclusion-induced acicular ferrite (AF) nucleation has been used for microstructure refinement in steel. Austenitization conditions have a significant influence on AF nucleation ability.
Xin Wang, Guodong Wang, Chao Wang, Jian Kang, Guo Yuan   +4 more
core   +1 more source

Microstructure Evolution of Cold-Rolled Carbide-Free Bainite Steel Sheets During Continuous Annealing Process

Metals
A modified carbide-free bainite (CFB) steel has been developed, building on existing alloys for compatibility with commercial continuous annealing lines (CALs), featuring a low austenitization temperature and short overaging time.
Bahareh Mobedpour, Fateh Fazeli, Hatem Zurob   +2 more
doaj   +1 more source