Mechanical properties of alloy KhN35VTYu at low temperatures

Previously abstracted from original as item 9202-56-0194. Various quench and aging heat treatments were used on KhN35VTYu (EI787) alloy to determine their effects on mechanical properties and impact resistance at low temperatures down to --253 deg c. Heating to 1050 deg C and holding for 3 h, air qu...

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Bibliographic Details
Published in:	Metal science and heat treatment Vol. 33; no. 5-6; pp. 388 - 390
Main Authors:	KOSHELEV, P. F, NIKITIN, P. N, BYNIN, E. YU, PASTUKHOVA, T. A
Format:	Journal Article
Language:	English
Published:	New York, NY Springer 01-05-1991
Subjects:	Applied sciences Exact sciences and technology Heat treatment Metals. Metallurgy Other heat treatments Production techniques Grain size Stress concentration Precipitation Nickel Chromium Alloys Ageing Mechanical characteristic Microstructure Quenching
Online Access:	Get full text
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Summary:	Previously abstracted from original as item 9202-56-0194. Various quench and aging heat treatments were used on KhN35VTYu (EI787) alloy to determine their effects on mechanical properties and impact resistance at low temperatures down to --253 deg c. Heating to 1050 deg C and holding for 3 h, air quenching and aging at 700 deg c for 3-8 h with subsequent air cooling resulted in the highest values of strength and impact resistance at room temperature and cryogenic temperatures. The alloy was insensitive to stress concentrations. Raising the quench temperature to 1200 deg C resulted in a significant reduction in strength and impact resistance and reduction in area. Raising the aging temperature from 700 to 750 deg C increased strength and lowered ductility and impact resistance sharply at low temperatures.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Translation-2 content type line 23
ISSN:	0026-0673 1573-8973
DOI:	10.1007/BF00775591