Mechanical properties and structure of rolled rings from beryllium bronze BrB2

Autor:	K. I. Nedashkovskii, M. V. Zaitsev, B. A. Kozykov, V. N. Semenov, G. G. Derkach, O. N. Zheleznyak, N. I. Revina, A. K. Nikolaev, Yu. V. Movchan
Rok vydání:	1999
Předmět:	business.product_category Materials science Impact toughness Metallurgy Metals and Alloys chemistry.chemical_element engineering.material Deformation (meteorology) Condensed Matter Physics Rod chemistry Flexural strength Rocket Mechanics of Materials engineering Beryllium Bronze business Ductility
Zdroj:	Metal Science and Heat Treatment. 41:454-456
ISSN:	1573-8973 0026-0673
DOI:	10.1007/bf02469098
Popis:	1. The developed regimes of hot deformation and nonstandard heat treatment of large rolled rings up to 500 mm in diameter from rods 100 mm in diameter made of beryllium bronze BrB2 provide a high rupture strength (μr > 1000 MPa) and an elevated ductility (δ>6%, ψ>11%) and impact toughness (KCV>120 kJ/m2). 2. The created technology prevents the appearance of hot cracks, eliminates repeated heat-treatment operations, increases the yeild, and gives preforms with a homogeneous fine-grained structure and stable mechanical properties, which provides reliable service in sealing parts operating in the elastoplastic range in superduty units of liquid-propellant rocket engines.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d44cb1150be309b59d6cd2616bc748f https://doi.org/10.1007/bf02469098 Zobrazit plný text záznamu Full text from SpringerLink