Results 131 to 140 of about 2,067 (160)

Features of phase transformations in high-chromium cast irons

Metal Science and Heat Treatment, 1983
1. In contrast to cast irons with 12–14% Cr, in cast irons with 29–30% Cr transformation by bainitic and martensitic mechanisms is prevalent. 2. With increasing content of carbon and manganese there is an increase in austenite stability in both the pearlitic and intermediate regions. 3.
E. V. Rozhkova, S. S. Mikhailovskaya, I. I. Tsypin   +2 more
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Specific features of hydroabrasive wear of high chromium cast irons

Physicochemical Mechanics of Materials
The fracture mechanism (wear) of high-chromium cast irons in a hydroabrasive environment was studied. The grades of cast irons for parts which require mechanical cutting were determined. It is shown that the character of hydroabrasive wear of high-chromium cast irons depends on their chemical composition, structure, properties of the environment and is
V. V. Netrebko, O. A. Mityayev, O. A. Glotka, O. S. Petrashev   +3 more
openaire   +1 more source

High-chromium cast iron sintered of sprayed powders

Powder Metallurgy and Metal Ceramics, 2007
The paper examines basic technological characteristics of high-chromium cast iron powders resulting from gas or water melt spraying. Sintering of billets made of these powders is investigated. It is shown that Fe-Cr-Mo-Cr powder alloys can combine high hardness and thermal stability.
G. A. Baglyuk, Yu. F. Ternovoi, V. N. Terekhov   +2 more
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Modelling of the High-Chromium Cast Iron Surface Roughness

2020
The surface roughness is one of the functions of material machinability. In order to obtain the better results in the surface roughness, it must strive for the more ideal cutting parameters. In addition to the cutting parameters on quality of surface roughness influenced by a number of factors. This paper examines the influence of cutting parameters on
Borislav Savković, Pavel Kovač, Branko Štrbac, Marcela Pokusova, Nenad Kulundžić   +4 more
openaire   +1 more source

High chromium cast iron: surfacing and application prospects

Blanking productions in mechanical engineering (press forging foundry and other productions)
A brief review of the literature of domestic and foreign researchers on high-chromium cast iron is performed. The main industries using high-chromium cast iron products and coatings are highlighted, the requirements for them are noted, and the production methods are analyzed.
V.E. Gromov, A.B. Yur'ev, A.R. Mikhno, S.V. Raykov   +3 more
openaire   +1 more source

Structure and properties of high-chromium white cast irons

Metal Science and Heat Treatment, 1974
1. The highly alloyed austenite produced in the alloys investigated, especially alloys 2 and 3, is very stable. The amount of austenite can be reduced only by combined heat treatment. 2. The optimal quenching temperature for all the alloys investigated is in the range of 900–975°. 3.
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Phase composition of high-chromium white cast iron

Metal Science and Heat Treatment, 1977
The change in hardness after annealing of cast iron and after normalization at temperatures up to 1100° is due to the structural condition of α phase, while the reduction of the hardness when the normalization temperature is raised from 1100 to 1200° is due to the appearance of austenite.
Yu. I. Paskal', M. N. Berkun, L. V. Sholokhova, A. S. Paskal', I. V. Zhivitsa   +4 more
openaire   +1 more source

A composite material with a matrix of high-chromium cast iron

Metal Science and Heat Treatment, 1979
1. Saturation of the matrix with tungsten and carbon during interaction of the matrix with grains of tungsten carbide eliminates the substantial difference in the wear resistance of hardening particles and the matrix of the composite material and secures the tungsten carbide grains in the material. 2. The tungsten diffusing from tungsten
V. P. Ponomarenko, V. P. Stoiko, A. Ya. Shvartser   +2 more
openaire   +1 more source

Features of distribution of chromium in high-chromium cast iron

2016
 Изучено влияние хрома на его распределение в высокохромистых чугунах. При содержании 12% хрома в сплаве он преимущественно находится в карбидах. По мере увеличения содержания хрома в сплаве, возрастало его количество как в карбидной фазе, так и металлической основе, при этом отношение Crкар/Crосн снижалось с 6,5 до 4,2.
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Welding Repair of High Chromium Cast Iron Defects

Key Engineering Materials, 2019
Welded arc welding repair welding technology was used to repair the casting defects of high chromium cast iron ball mill liners. Select the same high-chromium cast iron as the casting. The diameter of the electrode is 4mm and the welding current is 150-160A.
openaire   +1 more source