Results 21 to 30 of about 66,508 (302)
Metals, 2023 In this paper, through high-temperature tensile tests of 55NiCrMoV7 steel, high-temperature fracture behavior, microstructure evolution, and carbide distribution characteristics of both the thermal–mechanical coupling zone (fracture zone) and thermal ...
Yasha Yuan +4 more
doaj +1 more source
Mechanics and mechanisms of fatigue in a WC-Ni hardmetal and a comparative study with respect to WC-Co hardmetals [PDF]
, 2015 There is a major interest in replacing cobalt binder in hardmetals (cemented carbides) aiming for materials with similar or even improved properties at a lower price.
Coureaux Mustelier, David +5 more
core +2 more sources
Materials Research Express, 2021 Co–Cr–W alloys were widely used in the inlet exhaust valve of aeroengine. However, the traditional manufacturing process of Co–Cr–W alloys can not meet the demand for higher comprehensive performance, and an optimum method needs to be developed.
S Y Wang +7 more
doaj +1 more source
Vpliv podhlajevanja na lomno žilavost martenzitnega nerjavečega jekla AISI 420 [PDF]
, 2017 Cryogenic treatments have been employed over the last three decades in both tool and high-alloy steels to improve wear resistance, mainly through the transformation of retained austenite and the precipitation of fine carbides.
Perez Ipiña, Juan Elias +2 more
core +1 more source
Silicon Carbide Platelet/Silicon Carbide Composites [PDF]
Journal of the American Ceramic Society, 1995 α‐silicon carbide platelet/β‐silicon carbide composites have been produced in which the individual platelets were coated with an aluminum oxide layer. Hot‐pressed composites showed a fracture toughness as high as 7.2 MPa·m 1/2 .
Mitchell, T. +3 more
openaire +2 more sources
Aging Phenomena during In-Service Creep Exposure of Heat-Resistant Steels
Metals, 2019 An investigation of aging phenomena during creep exposure has been conducted for HP-Nb cast reformer tubes for several exposure conditions. Aging was manifested by carbide precipitation, carbide coarsening, and carbide transformation.
G. N. Haidemenopoulos +7 more
doaj +1 more source
Metals, 2022 Ledeburitic tool steel X210Cr12 was processed by passing through a semi-solid state with subsequent forming on a hydraulic press, thus achieving a fine-grained martensitic matrix, uniformly dispersed fine precipitates, and removal of sharp-edged primary ...
Hana Jirková +4 more
doaj +1 more source
Ab initio explanation of disorder and off-stoichiometry in Fe-Mn-Al-C kappa carbides [PDF]
, 2017 Carbides play a central role for the strength and ductility in many materials. Simulating the impact of these precipitates on the mechanical performance requires the knowledge about their atomic configuration.
Dey, P. +8 more
core +2 more sources
Metals, 2023 The effects of heat treatment (H1 and H2) on the creep behavior and microstructures of Mar-M247 at 871 °C/250 MPa are studied. The results show that the as-cast microstructure is composed of eutectics, γ phase, γ’ phase, MC and M23C6 carbides, while new ...
Qinghai Pan +7 more
doaj +1 more source
Creep behaviour of as received, aged and cold worked INCONEL 617 at 850 °C and 950 °C [PDF]
, 2010 The effect of initial microstructure on alloy 617 creep behaviour has been investigated at 850 °C and 950 °C. The solution treated material shows non-classical creep behaviour at both temperatures with a strain rate drop at the beginning of the tests ...
Chomette, Sébastien +2 more
core +3 more sources