Temat: carburizing - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Effect of the Quenching Method on the Deformations Size of Gear Wheels after Vacuum Carburizing
Autorzy:: Dybowski, K.
Sawicki, J.
Kula, P.
Atraszkiewicz, R.
Lipa, S.
Powiązania:: https://bibliotekanauki.pl/articles/352890.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: thermo-chemical treatment
vacuum carburizing
carburized layer
quenching
quenching deformations
low-pressure carburizing
Opis:: This paper presents a comparison of the deformations and residual stresses in gear wheels after vacuum carburizing process with quenching in high-pressure nitrogen and oil. The comparison was made on a medium-sized gear wheels, made of AMS6265 (AISI 9310) steel. This steel is applied in the aerospace industry for gears. The study has provided grounds for an assessment of the effect of the method of quenching on the size of deformations. Compared to oil quenching, high-pressure gas quenching following vacuum carburizing resulted in more uniform and smaller deformations.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 2B; 1057-1062
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Acetylene Flow Rate as a Crucial Parameter of Vacuum Carburizing Process of Modern Tool Steels
Autorzy:: Rokicki, P.
Dychton, K.
Powiązania:: https://bibliotekanauki.pl/articles/354322.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: vacuum carburizing
heavily-loaded gears
thermo-chemical treatment
microstructure
Opis:: Carburizing is one of the most popular and wide used thermo-chemical treatment methods of surface modification of tool steels. It is a process based on carbon diffusive enrichment of the surface material and is applied for elements that are supposed to present higher hardness and wear resistance sustaining core ductility. Typical elements submitted to carburizing process are gears, shafts, pins and bearing elements. In the last years, more and more popular, especially in highly advanced treatment procedures used in the aerospace industry is vacuum carburizing. It is a process based on chemical treatment of the surface in lower pressure, providing much higher uniformity of carburized layer, lower process cost and much lesser negative impact on environment to compare with conventional carburizing methods, as for example gas carburizing in Endo atmosphere. Unfortunately, aerospace industry requires much more detailed description of the phenomena linked to this process method and the literature background shows lack of tests that could confirm fulfilment of all needed requirements and to understand the process itself in much deeper meaning. In the presented paper, authors focused their research on acetylene flow impact on carburized layer characteristic. This is one of the most crucial parameters concerning homogeneity and uniformity of carburized layer properties. That is why, specific process methodology have been planned based on different acetylene flow values, and the surface layer of the steel gears have been investigated in meaning to impact on any possible change in potential properties of the final product.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 4; 2009-2012
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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