Results 121 to 130 of about 24,290 (250)
Fracture-tough, corrosion-resistant bearing steels [PDF]
The fundamental principles allowing design of stainless bearing steels with enhanced toughness and stress corrosion resistance has involved both investigation of basic phenomena in model alloys and evaluation of a prototype bearing steel based on a ...
Olson, Gregory B.
core +1 more source
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
KINETICS AND CRACK GROWTH MECHANISM IN STEEL WITH FERRITE-MARTENSITIC COMPOSITE STRUCTURE
Вестник Донского государственного технического университета, 2018 Research results of the crack behavior examination in steels with the ferrite martensitic composite structure are presented. It is shown that the crack propagation rate in these steels is considerably lower than in the same steels with secondary sorbite ...
Victor N. Pustovoit +2 more
doaj
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
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
Macroscopic fe-simulation of residual stresses in thermo-mechanically processed steels considering phase transformation effects [PDF]
, 2019 Residual stresses are an important issue as they affect both the manufacturing processes as well as the performance of the final parts. Taking into account the whole process chain of hot forming, the integrated heat treatment provided by a defined ...
Behrens, B. A., Chugreev, A., Kock, C.
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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
wiley +1 more source
High Cycle Fatigue Properties of PM‐HIPed High‐Nitrogen Tool Steel: Effect of Surface Condition
Fatigue &Fracture of Engineering Materials &Structures, EarlyView.ABSTRACT This study explores the impact of surface condition on high‐cycle fatigue performance of a high‐nitrogen martensitic tool steel manufactured through powder metallurgy and hot isostatic pressing. In near‐net manufacturing applications, acid‐leaching pickling treatment and/or machining is used as a post‐treatment to remove the powder container ...
Faezeh Javadzadeh Kalahroudi +3 more
wiley +1 more source
Comparative Study of the Tempering Behavior of Different Martensitic Steels by Means of In-Situ Diffractometry and Dilatometry. [PDF]
Materials (Basel), 2020 Hunkel M +8 more
europepmc +1 more source
Early Stages of Fatigue Damage of Steels for Fusion Energetics [PDF]
, 2012 Hlavním cílem této práce bylo vysvětlit únavové chování ocelí ODS Eurofer, 14Cr ODS feritické oceli vyráběné v CEA (Commissariat a l’énergie atomique, Saclay, France) a 14Cr ODS feritické oceli vyráběné v EPFL (École Polytechnique Fédérale de Laussane ...
Kuběna, Ivo
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