Published March 2005 | Version v1
Journal article Metadata-only

Creep activation energy of V-based alloys

Creators

  • 1. RAN, Inst. Metallurgii i Materialovedeniya im. A.A. Bajkova, Moscow (Russian Federation)

Description

Aimed to reveal creep mechanisms in vanadium base alloys the measurements of a creep activation energy are performed, which show the following: - in a V-Cr-Ti alloy the activation energy is practically constant within a whole temperature range studied and equal to ∼ 50 kcal/mole. The dependence of activation energy on applied stress escaped detection; - in a V-Ga-Si alloy the activation energy of creep progressively increases with temperature from ∼ 60 kcal/mole at 200 deg C to ∼ 115 kcal/mole at 450 deg C. The activation energy is independent of applied stress at temperatures above ∼ 350 deg C and decreases with a stress increase at lower temperatures

Abstract (Russian)

Для выяснения механизмов ползучести сплавов на основе ванадия проведены измерения энергии активации ползучести, которые показали, что в сплаве V-Cr-Ti энергия активации во всем исследованном интервале температур практически постоянна и равна ∼ 50 ккал/моль. Зависимость энергии активации от приложенного напряжения не обнаружена; в сплаве V-Ga-Si энергия активации ползучести непрерывно растет с температурой от ∼ 60 ккал/моль при 200 град С до ∼ 115 ккал/моль при 450 град С. Энергия активации не зависит от приложенного напряжения при температурах выше ∼ 350 град С и уменьшается с ростом приложенного напряжения при более низких температурах

Additional details

Additional titles

Original title (Russian)
Ehnergiya aktivatsii polzuchesti splavov na osnove vanadiya

Publishing Information

Journal Title
Fizika i Khimiya Obrabotki Materialov
Journal Issue
no.2
Journal Page Range
p. 95-96
ISSN
0015-3214
CODEN
FKOMAT

Conference

Title
methodology and simulation
Original Conference Title
Konferentsiya materialovedcheskikh obshchestv Rossii Sozdanie materialov s zadannymi svojstvami: metodologiya i modelirovanie
Acronym
Russian Materials Science Societies conference Development of materials with required properties
Dates
22-26 Nov 2004
Place
Ershovo, Moscow Region (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37104546
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACTIVATION ENERGY; CHROMIUM ALLOYS; CREEP; GALLIUM ALLOYS; SILICON ADDITIONS; STATIC LOADS; STRESSES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; TITANIUM ALLOYS; VANADIUM BASE ALLOYS
Descriptors DEC
ALLOYS; ENERGY; MECHANICAL PROPERTIES; SILICON ALLOYS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS; VANADIUM ALLOYS

Optional Information

Notes
5 refs., 1 fig.