Experience with the heat processing of cermet components of complex shape

Autor:	V. G. Sobolev, V. G. Gurevich, I. D. Radomysel'skii, N. G. Morozova, V. N. Klimenko
Rok vydání:	1969
Předmět:	Materials science Heat processing Metallurgy Metals and Alloys Cermet Condensed Matter Physics Thermal conductivity Mechanics of Materials Metallic materials Thermal Materials Chemistry Ceramics and Composites Hardening (metallurgy) Composite material
Zdroj:	Soviet Powder Metallurgy and Metal Ceramics. 8:759-763
ISSN:	1573-9066 0038-5735
DOI:	10.1007/bf00776020
Popis:	1. It is established that sintered steel components with additions of glass are very sensitive to thermal stresses during hardening, due to the shape of the components and the low thermal conductivity of the material. 2. Components of simple shape can be hardened without danger of crack formation to a hardness value of HRC = 59–61 from a temperature of 870°C in water. 3. Thin-walled components (gears) having constructional stress concentrators in the form of sudden changes in cross section, channels, gaps, etc., can be hardened to the required hardness, without the formation of hardening cracks, from 820±10°C in a 20%-aqueous solution of NaOH. The apertures of the hubs should be rammed with asbestos to reduce stresses.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cd46342075684046cfa46a183b48a81a https://doi.org/10.1007/bf00776020 Zobrazit plný text záznamu Full text from SpringerLink