Structure and properties of coatings built up by CO2-laser radiation

Autor:	A. A. Ablaev, L. T. Krasnov, V. E. Arkhipov
Rok vydání:	1992
Předmět:	Materials science Seizing Metallurgy Alloy steel Metals and Alloys chemistry.chemical_element engineering.material Condensed Matter Physics Microstructure Galvanization Corrosion Cracking symbols.namesake Chromium chemistry Mechanics of Materials symbols engineering Metal powder
Zdroj:	Metal Science and Heat Treatment. 34:452-456
ISSN:	1573-8973 0026-0673
DOI:	10.1007/bf00774905
Popis:	1. Lowering the content of chromium and carbon in powder materials of the system Ni−Cr−B−Si reduces the proneness to cracking of built-up coatings. 2. Preliminary heating of the specimen (part) to 100–150°C eliminates almost completely the proneness to cracking of built-up coatings when the facing materials are nickel base powders of the self-fluxing class. 3. In regard to corrosion resistance built-up coatings are not inferior to galvanized chromium coatings and are better than alloy steel 38KhMYuA. Such coatings have long life even when there are cracks on the surface. 4. Built-up coatings have good seizing resistance both at room temperature and at elevated temperatures, and their wear resistance is one order of magnitude better than the wear resistance of steel 45 heat-treated to HRC 51–53.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::79d4049e6c0cde788b44b490f18fde21 https://doi.org/10.1007/bf00774905 Zobrazit plný text záznamu Full text from SpringerLink