Published 2010 | Version v1
Miscellaneous Metadata-only

Low-temperature radiation hardening of Fe-Cr alloys

Creators

  • 1. Inst. Fiziki Metallov UrO RAN, Ekaterinburg (Russian Federation)

Description

Methods of positron annihilation spectroscopy is used to study the processes accumulation and annealing (300-700 K, vacuum) of vacancy defects in Fe-15.7 at.% Cr alloy as well as the effect of these processes on alloy low-temperature hardening at electron irradiation (5 MeV) in 270-370 K temperature range. Tensile tests are carried out during alloy irradiation. It is shown that at the initial stages of irradiation growth of yield strength is a result of vacancy-carbon complexes accumulation. Growth of yield strength with radiation dose increasing is related with rise of three-dimension vacancy clusters density. For alloy irradiated at 370 K possibility of contribution into its hardening of high-chromium phase arising as a result of radiation-accelerated α-α' stratification is considered

Abstract (Russian)

Методом позитронной аннигиляционной спектроскопии исследованы процессы накопления и отжига при 300-700 К в вакууме вакансионных дефектов в сплаве Fe-15.7at.%Cr, а также влияние этих процессов на низкотемпературное упрочнение сплава при электронном облучении (5 МэВ) при температуре 270-370 K. Проведены механические испытания на растяжение в процессе облучения сплава. Показано, что на начальных стадиях облучения прирост предела текучести вызван накоплением вакансионно-углеродных комплексов. С повышением дозы облучения рост предела текучести связывается с увеличением плотности трехмерных вакансионных кластеров. Для сплава, облученного при 370 K, рассмотрена также возможность вклада в его упрочнение высокохромистой фазы, зарождающейся в результате радиационно-ускоренного α-α' расслоения
Part of:
VII International scientific conference Radiation-thermal effects and processes in inorganic materials. Proceedings

Additional details

Additional titles

Original title (Russian)
Низкотемпературное радиационное упрочнение сплавов Фе-Cр

Publishing Information

Publisher
Isd-vo TPU
Imprint Place
Tomsk (Russian Federation)
Imprint Title
VII International scientific conference Radiation-thermal effects and processes in inorganic materials. Proceedings
Imprint Pagination
768 p.
Journal Page Range
p. 56-61
Report number
INIS-RU--534

Conference

Title
7. international scientific conference radiation-thermal effects and processes in inorganic materials
Original Conference Title
VII Mezhdunarodnaya nauchnaya konferentsiya Radiatsionno-termicheskie ehffekty i protsessy v neorganicheskikh materialakh
Dates
2-10 Oct 2010
Place
Tomsk (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
44066104
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNEALING; CHROMIUM ALLOYS; DOSE RATES; ELECTRONS; IRON ALLOYS; MEV RANGE 01-10; RADIATION DOSES; RADIATION HARDENING; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TENSILE PROPERTIES; VACANCIES; YIELD STRENGTH
Descriptors DEC
ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DOSES; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HARDENING; HEAT TREATMENTS; LEPTONS; MECHANICAL PROPERTIES; MEV RANGE; PHYSICAL RADIATION EFFECTS; POINT DEFECTS; RADIATION EFFECTS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
24 refs., 3 figs. Imprint:Trudy VII Mezhdunarodnoj nauchnoj konferentsii Radiatsionno-termicheskie ehffekty i protsessy v neorganicheskikh materialakh