scholarly journals Study of Fracture Mechanisms at Cyclic Fatigue of Austenitic Steels Used in Nuclear Reactors

2017 ◽  
Author(s):  
Tamaz Eterashvili
Keyword(s):  
Nuclear Reactors ◽  
Cyclic Fatigue ◽  
Austenitic Steels ◽  
Fracture Mechanisms

Study of Fracture Mechanisms at Cyclic Fatigue of Steels Used in Nuclear Reactors I

2012 ◽  
Vol 83 (3) ◽  
pp. 213-217 ◽  
Author(s):  
Tamaz Eterashvili ◽  
Temur Dzigrashvili
Keyword(s):  
Nuclear Reactors ◽  
Cyclic Fatigue ◽  
Fracture Mechanisms

Fatigue Behavior of High Manganese TWIP Steels and of Low Alloy Q&P Steels for Car-Body Applications

2014 ◽  
Vol 783-786 ◽  
pp. 713-720
Author(s):  
Paolo Matteis ◽  
Giorgio Scavino ◽  
R. Sesana ◽  
F. D’Aiuto ◽  
Donato Firrao
Keyword(s):  
Heat Treatment ◽  
Room Temperature ◽  
Fatigue Behavior ◽  
Austenitic Steels ◽  
Fracture Mechanisms ◽  
High Manganese ◽  
Cold Forming ◽  
Austenitic Structure ◽  
Plasticity Effect ◽  
Twip Steels

The automotive TWIP steels are high-Mn austenitic steels, with a relevant C content, which exhibit a promising combination of strength and toughness, arising from the ductile austenitic structure, which is strengthened by C, and from the TWIP (TWinning Induced Plasticity) effect. The microstructure of the low-alloy Q&P steels consists of martensite and austenite and is obtained by the Quenching and Partitioning (Q&P) heat treatment, which consists of: austenitizing; quenching to the Tqtemperature, comprised between Msand Mf; soaking at the Tppartitioning temperature (Tpbeing equal to or slightly higher than Tq) to allow carbon to diffuse from martensite to austenite; and quenching to room temperature. The fatigue behavior of these steels is examined both in the as-fabricated condition and after pre-straining and welding operations, which are representative of the cold forming and assembling operations performed to fabricate the car-bodies. Moreover, the microscopic fracture mechanisms are assessed by means of fractographic examinations.

Conventional austenitic steels as out-of-core materials for Generation IV nuclear reactors

2017 ◽  
pp. 595-633 ◽  
Author(s):  
F. Dalle ◽  
M. Blat-Yrieix ◽  
S. Dubiez-Le Goff ◽  
C. Cabet ◽  
Ph. Dubuisson
Keyword(s):  
Nuclear Reactors ◽  
Austenitic Steels ◽  
Core Materials

Fracture-mechanisms in pure iron, two austenitic steels, and one ferritic steel

1980 ◽  
Vol 11 (2) ◽  
pp. 333-347 ◽  
Author(s):  
R. J. Fields ◽  
T. Weerasooriya ◽  
M. F. Ashby
Keyword(s):  
Pure Iron ◽  
Ferritic Steel ◽  
Austenitic Steels ◽  
Fracture Mechanisms
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