Results 71 to 80 of about 134,397 (238)

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

Efeito do cobre e da deformação no efeito trip de um aço inoxidável austenítico AISI304, avaliado por diversos métodos de análise [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013.A variação da fração volumétrica de martensita a' (fase ferromagnética) em função da ...
Lischka, Fernanda Torrens
core  

Effects of Ce addition on inclusion modification in martensitic stainless steel

Materials Research Express
The control of inclusion features, i.e., chemical composition, distribution, quantity, and size, is in high demand for stainless steels to achieve good surface quality, pitting corrosion resistance, and mechanical properties.
Lei Xing, Haiyan Wang, Xueyun Gao, Fangcheng Tian, Hongling Lin, Haixin Yin   +5 more
doaj   +1 more source

Microstructure Characterization of Bending Effects in 304L Stainless Steel Cladded with Low‐Alloy Steel Weld

steel research international, EarlyView.
Prebending of 304L/Q345R cladded plates significantly alters the subsequent weld thermal cycle and modifies the local interfacial microstructure. Combined electron backscatter diffraction (EBSD) and microscopy analysis demonstrates that deformation twinning, martensitic transformation, and defect initiation are concentrated at the trimaterial junction,
Ali Fahem, Elsiddig Elmukashfi, Hong Dong   +2 more
wiley   +1 more source

Laser heat treatment of martensitic steel and dual-phase steel with high martensite content

Materials Science and Engineering: A, 2019
Laser heat treatment of galvanised steels with a martensite content superior to 80% were performed on a 1 cm wide area over an extensive temperature range [620 K - 1350 K]. The material softening induced is studied through uniaxial tensile testing and SEM microstructural observation. A treatment temperature close to Ac3 yields a massive increase in the
Lapouge, Pierre, Dirrenberger, Justin, Coste, Frédéric, Schneider, Matthieu   +3 more
openaire   +4 more sources

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

steel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi, Jose A. Jimenez, Carlos Garcia‐Mateo, Radhakanta Rana   +3 more
wiley   +1 more source

Method of Determining the Main Features of Magnetic Ferromagnetic Materials

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2012
The purpose of this paper is to present a method for determining the main magnetic features such as magnetic induction B, magnetization M, the coercive magnetic field Hc, permeability μ, using hysteresis cycle chart.
Livia GHEORGHIEŞ, Ovidiu DIMA
doaj  

Revisiting rapid tempering of martensitic steel: the key role of tempering time over heating rate in carbide refinement and precipitation strengthening

Journal of Materials Research and Technology
Rapid tempering process can effectively improve the mechanical properties of martensitic steels such as strength, fracture toughness and impact toughness, which is mainly attributed to the promoted density and refined grain size of carbides. However, the
Baoqin Luo, Wenqi Mao, Yankang Zhao, Lijia Zhao, Hao Gao, Wenbin Ma, Shaolong Sheng, Nokeun Park, Pinaki Prasad Bhattacharjee, Qiang Wang   +9 more
doaj   +1 more source

On the Mechanism of the Martensite Formation in Steel

The Journal of the Japan Institute of Metals, 1948
The ‘Umklappen’ which is the process of the formation of one martensite (α') needle, takes place in an extremely short time. This process, therefore, must be adiabatic and needs no diffusion of atoms, that is, no change of composition, consequently, when the austenite (γ) is cooled from point X (Fig. 2 and 3).
Zenji Nishiyama, Yasumitsu Shimomura
openaire   +2 more sources

Near‐Atomic Investigation on the Elemental Redistribution During Coprecipitation of Nano‐Sized Kappa‐Type and B2 Precipitates in an Al‐Alloyed Lightweight Steel

steel research international, EarlyView.
Elemental redistribution during coprecipitation of kappa (κ)‐type and B2 precipitates in an Al‐alloyed lightweight steel is revealed by atom probe tomography (APT) and density functional theory (DFT). Fe and Ni redistribution promotes the evolution of B2 phase from NiAl‐type toward FeAl‐type and improves the stability of κ and B2 phases during ...
Bowen Zou, Yixu Wang, Xiao Shen, Philipp Krooß, Thomas Niendorf, Richard Dronskowski, Wenwen Song   +6 more
wiley   +1 more source