X-ray analysis/ high-speed steel HS18-0-1austemperingbainitic transformationoptical metallographic analysiselectron-microscope analysisSome special features of the kinetics and mechanism of the bainitic transformation in high-speed steel HS18-0-1 have been studied. Austempering has been performed at ...
The effects of alloying elements on the microstructural factors, hardness, and wear properties of four high-speed steel (HSS) rolls fabricated by centrifugal casting were investigated. A hot-rolling simulation test was carried out using a high-temperature wear tester capable of controlling speed, loa...
High speed steels (JIS SKH51) have been produced by sinter forging using high-pressure water atomized powders. The bend strength and hardness have been measured and optical and electron microscopic observations have been carried out. The properties of the forged steels have been compared with those...
A study was made of the effects of alloying elements on microstructural factors of six high speed steel (HSS) rolls manufactured by centrifugal casting method. Particular emphasis was placed on the role of hard carbides located along solidification cell boundary and the type of the martensite matrix...
Microstructure, mechanical properties, and wear resistance of B-bearing high-speed steel (HSS) roll material containing 0.90-1.00% C, 1.3-1.5% B, 0.8-1.5% W, 0.8-1.5% Mo, 4.6-5.0% Cr, 1.0-1.2% V, and 0.15-0.20% Ti were studied by means of the optical microscopy (OM), the scannin...
The authors determined the coefficient of thermal conductivity, specific heats, and the coefficients of linear expansion of five new low-alloy high-speed steels in the hardened and tempered (ie. working) condition; with the same characteristics determined for R6M5 steel for comparison. The chemical...
25-CHx coating with the best tribological properties was deposited on micro-drills and used to perform a series of high-speed through-hole drilling tests under dry conditions using printed circuit board specimens. Among the various NbTiNx coatings, the NbTiN25...
Effects of alloying elements on microstructure and fracture properties of cast high speed steel rolls: Part I: Microstructural analysis Effects of Alloying Elements on Microstructure and Fracture Properties of Cast High Speed Steel Rolls Part I :Microstructural analysis[J]. Mater. Sci. Eng. A, 1998...
strength of powder metallurgy high speed steel was researched.The results show that the microstructure of the heat-treated high speed steel is composed of martensite,retained austenite and MC carbide.The hardness and bending strength of the high speed steel increase with the rise of quenching ...
deposited at a purity level greater than 97 percent. Graphite anodes are used in the electrolytic production of lithium, while the cathodes are made of steel. The pure lithium formed at the cathodecoalescesat the surface of the electrolyte to form a molten pool, which is protected from ...