Results 61 to 70 of about 93,926 (233)

Influence of Prior Martensite on Bainite Transformation, Microstructures, and Mechanical Properties in Ultra-Fine Bainitic Steel

Materials, 2019
A multiphase microstructure comprising of different volume fractions of prior martensite and ultra-fine bainite (bainitic ferrite and retained austenite) was obtained by quenching to certain temperatures, followed by isothermal bainitic transformation ...
Hui Guo, Xian-ying Feng, A. Zhao, Qiang Li, Jun Ma   +4 more
semanticscholar   +1 more source

Micromechanical Characterization of 316L‐V4E Steel Transitions Produced by Electron Beam Powder Bed Fusion with Dual‐Hopper Alternating Layer Strategy

Advanced Engineering Materials, EarlyView.
This work applies High‐Speed Nanoindentation to study multi‐material transitions in powder bed fusion–electron beam melting components. The aim is to assess the mechanical gradients and interfacial behavior between American iron and steel institute 316L stainless steel and V4E tool steel in additively manufactured structures.
Laia Ortiz‐Membrado, William Sjöström, Francesc Barberà Flichi, Carlos Botero, Anton S. Tremsin, Antonio Mateo, Emilio Jiménez‐Piqué   +6 more
wiley   +1 more source

Microstructure and Mechanical Properties of Nb and V Microalloyed TRIP-Assisted Steels

Metals, 2019
The intercritical annealing and isothermal bainitic processing response was studied for three Nb and V microalloyed Transformation-Induced Plasticity (TRIP)-assisted 980 MPa grade steels.
Olli Oja, Ari Saastamoinen, Madan Patnamsetty, Mari Honkanen, Pasi Peura, Martti Järvenpää   +5 more
doaj   +1 more source

Effect of solid solution cooling rate on α phase morphology of full lamellar metastable β titanium alloy

Cailiao gongcheng, 2022
The effect of solid solution cooling rate on mechanical properties and the morphology of strip α phase of TB17 titanium alloy was studied by Gleeble thermal simulation compression testing machine, microhardness tester, scanning electron microscope (SEM ...
XIN Yunpeng, ZHU Zhishou, WANG Xinnan, SHANG Guoqiang, WANG Yanwei, LI Mingbing   +5 more
doaj   +1 more source

A shape memory alloy adaptive tuned vibration absorber: design and implementation

, 2005
In this paper a tuned vibration absorber (TVA) is realized using shape memory alloy (SMA) elements. The elastic modulus of SMA changes with temperature and this effect is exploited to develop a continuously tunable device.A TVA with beam elements is ...
Brennan, M.J., Mace, B.R., Rustighi, E.
core   +1 more source

Martensite phase stress and the strengthening mechanism in TRIP steel by neutron diffraction

Scientific Reports, 2017
Two TRIP-aided multiphase steels with different carbon contents (0.2 and 0.4 mass%) were analyzed in situ during tensile deformation by time-of-flight neutron diffraction to clarify the deformation induced martensitic transformation behavior and its role
S. Harjo, N. Tsuchida, J. Abe, W. Gong
semanticscholar   +1 more source

Additive Manufacturing of Hot Work Tool Steel by Laser Powder Bed Fusion Utilizing Powder Mixtures Including Grinding Chips: Assessing Chemical Homogeneity and Achievable Hardness

Advanced Engineering Materials, EarlyView.
Grinding chips of high‐alloyed steel are prepared to be admixed to a starting powder mixture for laser powder bed fusion. A three‐stage preparation is performed, including washing in acetone, magnetic separation, and ball milling. The addition of 30% of grinding chips to the powder mixture allows the fabrication of dense samples.
Felix Großwendt, Chengsong Cui, Jonathan Lentz, Rainer Fechte‐Heinen, Sebastian Weber   +4 more
wiley   +1 more source

Effects of Q&P Processing Conditions on Austenite Carbon Enrichment Studied by In Situ High-Energy X-ray Diffraction Experiments

Metals, 2017
We report the first ultra-fast time-resolved quantitative information on the quenching and partitioning process of conventional high-strength steel by an in situ high-energy X-ray diffraction (HEXRD) experiment.
Sébastien Yves Pierre Allain, Guillaume Geandier, Jean-Christophe Hell, Michel Soler, Frédéric Danoix, Mohamed Gouné   +5 more
doaj   +1 more source

Transformation characteristics of γ→ε-M and ε-M→α'-M in high manganese steel under high speed compression

Cailiao gongcheng, 2021
The volume fractions of γ (austenite), ε-M (hcp martensite) and α'-M (bcc martensite) in static and high speed compressed high manganese transformation induced plasticity (TRIP) steel were calculated by the XRD technique to investigate the effect of ...
WANG Li-na, LI Zhi-chao, WU Xiao-long, MA Dan-dan, YANG Ping   +4 more
doaj   +1 more source

Phase-field analysis of quenching and partitioning in a polycrystalline Fe-C system under constrained-carbon equilibrium condition

, 2018
Mechanical properties of steels are significantly enhanced by retained austenite. Particularly, it has been shown that a recently developed heat-treatment technique called Quenching and Partitioning (Q\&P) stabilises austenite effectively. In the present
Amos, P G Kubendran, Nestler, Britta, Schneider, Daniel, Schoof, Ephraim, Streichan, Nick   +4 more
core   +1 more source