Results 1 to 10 of about 60,100 (278)

Magnetocaloric Effect Caused by Paramagnetic Austenite–Ferromagnetic Martensite Phase Transformation [PDF]

, 2018
In the present work, the magnetization of Ni50Mn17.5Ga25Cu7.5 alloy undergoing the first-order phase transition from paramagnetic austenite to ferromagnetic martensite was measured to evaluate the magnetic-field-induced entropy change (MFIEC) and ...
Cesari, Eduard, Kosogor, Anna, L'vov, Victor A., Lazpita Arizmendiarrieta, Patricia, Seguí Palmer, María Concepción   +4 more
core   +2 more sources

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

Nanoscale austenite reversion through partitioning, segregation, and kinetic freezing: Example of a ductile 2 GPa Fe-Cr-C steel

, 2012
Austenite reversion during tempering of a Fe-13.6Cr-0.44C (wt.%) martensite results in an ultrahigh strength ferritic stainless steel with excellent ductility.
Choi, P., Jiménez, J. A., Ponge, D., Raabe, D., Wittig, J., Yuan, L.   +5 more
core   +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

Robust Bain distortion in the premartensite phase of platinum substituted Ni2MnGa magnetic shape memory alloy

, 2017
The premartensite phase of shape memory and magnetic shape memory alloys (MSMAs) is believed to be a precursor state of the martensite phase with preserved austenite phase symmetry.
Chadov, S., D'Souza, S., Devi, P., Dutta, B., Felser, C., Gibbs, A., Hickel, T., Pandey, D., Singh, S., Zavareh, M., Zavareh, M.   +10 more
core   +2 more sources

Nonclassical Austenite-Martensite Interfaces [PDF]

Le Journal de Physique IV, 1997
In the last 10 years a new theory of martensitic transformations based on nonlinear elasticity has been developed and intensively studied by J.M. Ball & R.D. James and others. Microstructures are understood in the theory as minimizing sequences for the total free energy, and are conveniently described using Young measures. For the case of the classical
Ball, J, Carstensen, C
openaire   +4 more sources

Variant Selection in Fe-20Ni-1.8C under Bending

Crystals, 2018
Variant selection is commonly observed in martensitic steels when a stress is applied to the material during transformation. Classically, the selection phenomenon is modelled considering the work of the shape strain in the applied stress field.
Annick P. Baur, Cyril Cayron, Roland E. Logé   +2 more
doaj   +1 more source

Fracture of drilling head pipe connection due to quenching of heat affected zone (HAZ)

Metalurgija, 2015
The drilling head pipe connection is made of quenched and tempered steel 34CrNiMo6. The steel characteristic is high hardenability. Due to unsuitable and untested welding technology the heat affected zone (HAZ) cooling rate after welding surpassed the ...
B. Zorc, M. Bizjak, B. Kosec, A. Nagode
doaj