Results 1 to 10 of about 36,648 (255)
In addition to dispersed nanoparticles in the binder phase, the effect of Ni3Al on the growth mechanism of tungsten carbide (WC) grains is also essential for the fabrication of high-quality of cemented carbides.
Yingbiao Peng +6 more
doaj +1 more source
Prediction the Initiation of Pitting Corrosion Depending on Carbides in the Microstructure of 304 Stainless Steel [PDF]
Stainless steel has excellent corrosion resistance due to formation oxides protective films in many environments. When steel exposed to temperature in the range of (500-900) ºC, the carbon in the structure will be effective to react with chromium in the ...
S. I.Alrubaiey, Sh. F.Hasan
doaj +1 more source
Modification of cast alloys nanostructured material
The third article of the series devoted to the application of nanomaterials and nanotechnologies in industry in general and, first of all, in metallurgy, materials science and foundry is presented. This article deals with the use of nanomaterials for the
P. A. Vitiaz +4 more
doaj +1 more source
WEAR RESISTANCE OF MULTI-COMPONENT COMPOSITE COATINGS APPLIED BY CONCENTRATING ENERGY FLOWS [PDF]
In this work are presented the results of comparative tests of the abrasion wear characteristics and the wear resistance of new coatings from multi-component composite materials.
M. KANDEVA +4 more
doaj +1 more source
The effect of boron on the amount and type of carbides in chromium white irons [PDF]
The effect of boron, in the amounts of 0.26, 0.39, and 0.59 wt.%, on the volume fraction and structure of carbides in Cr white irons was examined. It was demonstrated that the addition of boron can change the microstructural characteristics of white iron
Tomović-Petrović Stanka M. +2 more
doaj +1 more source
Secondary Hardness and Heat Resistance of High-Speed Steels
This paper presents the research results concerning factors affecting the secondary hardness and heat resistance of high-speed steels. Processing parameters making possible to achieve the necessary levels of heat resistance and hardness are considered ...
O. V. Movchan, K. O. Chornoivanenko
doaj +1 more source
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
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
Aging Phenomena during In-Service Creep Exposure of Heat-Resistant Steels
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
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

