Results 101 to 110 of about 641,862 (248)
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 +6 more
wiley +1 more source
Minimal Surfaces and Topology of Martensitic Phase Transformations
Martensitic phase transformations and the shape memory effect have been extensively studied, with various theories proposed to understand their mechanisms.
Yin, Mengdi
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Martensitic transformations in ion implanted stainless steels
, 1989 Using ion implantation it is possible to induce a variety of phase transformations in the surfaces of stainless steels. The implanted layer can be either amorphized, undergo an fee (γ) => bec (α') martensitic transformation, or compounds can be formed
Erik Johnson
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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 +8 more
wiley +1 more source
Martensitic and austenitic transformations in core-surface cubic nanoparticles [PDF]
, 2015 International Conference on Nanoscale Magnetism (ICNM-2013) -- SEP 02-06, 2013 -- Istanbul, TURKEYAs a continuation of our recently published work, we have used the pair approximation in Kikuchi version to investigate martensitic and austenitic ...
Ozum, S. +5 more
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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 +9 more
wiley +1 more source
steel research international, EarlyView.The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
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CLASSICAL AND NONCLASSICAL MECHANISMS OF MARTENSITIC TRANSFORMATIONS
, 1982 Theoretical approaches to the nucleation of martensitic transformations have considered two types of nucleation paths : (a) the classical path, involving a nucleus of fixed structure and increasing size, and (b) nonclassical paths, involving a nucleus of
G.B. Olson, M. Cohen
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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 +2 more
wiley +1 more source
The effect of point defects on the martensitic phase transformation
CRPPSPCMaterials Science and Engineering A, 438-440 (2006) 102-108 - International Conference on Martensitic Transformations (ICOMAT) 2005, 13-17 June 2005, Shanghai ...
Abromeit, C. +4 more
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