On the role of recovery in creep of precipitation-strengthened polycrystalline nickel-base alloys

Autor:	J. Čadek, V. Šustek, Antonín Dlouhý, M. Pahutová
Rok vydání:	1997
Předmět:	Materials science Mechanical Engineering Effective stress Alloy Metallurgy technology industry and agriculture Strain rate engineering.material Condensed Matter Physics Microstructure Precipitation hardening Creep Mechanics of Materials engineering General Materials Science Crystallite Dislocation
Zdroj:	Materials Science and Engineering: A. 238:391-398
ISSN:	0921-5093
DOI:	10.1016/s0921-5093(97)00464-4
Popis:	An attempt is made to shed some new light on the role of recovery in creep of precipitation-strengthened polycrystalline nickel-base creep-resistant alloys, comparing some basic creep data for a Ni–16Cr–10W–4Mo–Ti–Al alloy with similar data for a low carbon 18Cr–12Ni stainless steel and a 15M 2 B–Fe–18Cr–12Ni in situ composite. The comparison suggests that the minimum creep strain rate of precipitation-stregthened polycrystalline nickel-base creep-resistant alloys is controlled rather by recovery (driven by internal stress affected by the presence of γ′-particles), than by dislocation glide/climb (driven by effective stress) past these particles. An urgent need to study in detail recovery in creep of precipitation-strengthened polycrystalline nickel-base alloys is emphasized.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::76ea71d453ab825b49893e2d3cc52ce5 https://doi.org/10.1016/s0921-5093(97)00464-4 Zobrazit plný text záznamu Full Text from ScienceDirect