Results 31 to 40 of about 2,634 (290)
High temperature gas nitriding performed on AISI 316L at the temperature of 1200°C. The microstructure of treated AISI 316L samples were observed to identify the formation of the microstructure of nitrided surface layer. The grain size of austenite tends
Mahmoud Hassan R. S. +5 more
doaj +1 more source
Cementite Residual Stress Analysis in Gas-nitrided Low Alloy Steels [PDF]
This paper deals with the measurement of residual stresses in cementite after gas-nitriding of a 33CrMoV12-9 steel. During nitriding, precipitation of nanometric alloying elements nitrides and cementite at grain boundaries occurs leading to an increase ...
GOEKJIAN, S. +6 more
core +1 more source
Research of influence of gas nitriding duration on formation of diffusion layer of steel 20Kh2N4A
The research of the gas nitriding process, which allows to obtain a high surface quality of steel parts and has a wide application in mass production, is relevant.
Kateryna O. Kostyk
doaj +1 more source
Nitriding of aluminium-containing steels [PDF]
This thesis describes a study of the nitriding behaviour of some aluminium-containing low alloy steels with and without chromium. The main aim of the study has been to establish the relationship between prior heat treatment and nitriding process ...
Abdul-Hussein, Abbas, Abdul-Hussein, A
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This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe +4 more
wiley +1 more source
Modeling of Gas nitriding using Artificial Neural Networks [PDF]
In North America, heat treating adds about $15 billion per year in value to metal goods by imparting specific properties that are required if parts are to function successfully.
Afzaal, Umar
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Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver +9 more
wiley +1 more source
LOCAL PROTECTION WITH SPECIAL PAINTS BASED ON COPPER POWDERS USED AGAINST IONIC NITRIDING [PDF]
The paper presents aspects concerning the appreciation of the protection through special paints based on copper powders used against plasma nitriding.
Marius BIBU, Florin CIOFU
doaj
Depth profiling analysis of the nitriding layer formed by gas nitriding of Ti13Nb13Zr alloy
The gas nitriding of Ti13Nb13Zr alloy was performed in a pure nitrogen atmosphere at 1200 °C with different holding times. The variations in the phase constituents, microstructure, and mechanical properties of the nitriding layer with depth were ...
Xiaolei Sun, Hanke Song, Yong Luo
doaj +1 more source
Tratamentos termoquímicos sequenciais por plasma do aço AISI 1005 [PDF]
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2015.Este trabalho apresenta uma nova abordagem sobre o emprego sequencial dos tratamentos
Damin, Keli Vanessa Salvador
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