Results 61 to 70 of about 2,934 (216)
Super-strong dislocation-structured high-carbon martensite steel
Scientific Reports, 2017 High-carbon martensite steels (with C > 0.5 wt.%) are very hard but at the same time as brittle as glass in as-quenched or low-temperature-tempered state.
Jun-jie Sun +8 more
doaj +1 more source
steel research international, EarlyView.The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi +3 more
wiley +1 more source
Shear-mode Crack Initiation Behavior in the Martensitic and Bainitic Microstructures
MATEC Web of Conferences, 2018 Fully reversed torsional fatigue tests were conducted to elucidate the behaviour of shear-mode crack initiation and propagation in one martensitic and two bainitic steels.
Wada Kentaro +4 more
doaj +1 more source
Long-term corrosion behavior of ODS-Eurofer in flowing Pb-15.7Li at 550°C
Nuclear Materials and Energy, 2016 Low activation ferritic-martensitic steels (RAFM-steels) are foreseen as structural materials in different blanket designs (HCLL, DCLL, WCLL) with Pb-15.7Li as breeding and partly also as cooling medium.
W. Krauss, S.-E. Wulf, J. Konys
doaj +1 more source
steel research international, EarlyView.To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt +2 more
wiley +1 more source
Yielding Behaviour of Martensite in Steel
ISIJ International, 2015 Although martensite is recognised as a very strong phase in carbon steels, its initial yielding commences at low stresses and the tensile stress-strain curve shows a smooth, rounded form. Evidence is presented from x-ray diffraction to show that this behaviour is due to the presence of intra-granular stresses that are residues after the shear ...
Hutchinson, Bevis +2 more
openaire +2 more sources
steel research international, EarlyView.This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam +7 more
wiley +1 more source
On the Mechanism of the Martensite Formation in Steel
Journal of the Japan Institute of Metals and Materials, 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).
Nishiyama, Zenji, Shimomura, Yasumitsu
openaire +3 more sources
Hydrogen Embrittlement of Ultrafine-Grained Austenitic Stainless Steels
Reviews on Advanced Materials Science, 2018 The effect of electrochemical hydrogen-charging on tensile properties, mechanisms of plastic deformation and fracture micromechanisms was studied using two ultrafine-grained (UFG) Cr-Ni austenitic stainless steels.
Astafurova E. G. +5 more
doaj +1 more source
steel research international, EarlyView.The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing +4 more
wiley +1 more source