Environmentally Assisted Cracking of Types 304L/316L/316NG Stainless Steel in 288°C Water

CORROSION ◽  
1989 ◽  
Vol 45 (6) ◽  
pp. 448-463 ◽  
Author(s):  
P. L. Andresen ◽  
C. L. Briant
Keyword(s):  
Stainless Steel ◽  
Environmentally Assisted Cracking

Environmentally Assisted Cracking Research of Engineering Alloys for Nuclear Waste Repository Containers

2012 ◽  
Vol 1475 ◽  
Author(s):  
Raul B. Rebak
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Nuclear Waste ◽  
Nickel Alloys ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Waste Repository ◽  
Environmentally Assisted Cracking ◽  
Waste Repository ◽  
Engineering Alloys

ABSTRACTAll the countries that operate commercial nuclear power plants are planning to dispose of the waste in underground geologically stable repositories. The materials being studied for the fabrication of the containers include carbon steel, stainless steel, copper, titanium and nickel alloys. The aim of this work is to review results from research performed using the alloys of interest regarding their resistance to environmentally assisted cracking (EAC) under simulated repository conditions. In general, it is concluded that the environments are mild and that the studied metals may not be susceptible to cracking under the planned emplacement conditions.

Corrosion behavior of metallic materials in biomedical applications. II. Stainless steels and Co-Cr alloys

2014 ◽  
Vol 32 (1-2) ◽  
pp. 21-41 ◽  
Author(s):  
Bruce G. Pound
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
Biomedical Applications ◽  
Galvanic Corrosion ◽  
General Corrosion ◽  
Metallic Materials ◽  
Environmentally Assisted Cracking ◽  
Type Stainless Steel ◽  
Corrosion Pitting

AbstractNumerous studies have been performed to investigate the corrosion behavior of Ti and its alloys, 316-type stainless steel, and Co-Cr alloys in simulated and actual physiological liquids. This review is the second of two parts and focuses on 316-type stainless steel and Co-Cr alloys. It deals with the forms of corrosion that are of principal interest with regard to these alloys in vivo: general corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, and fretting corrosion. The review also addresses environmentally assisted cracking in the form of corrosion fatigue and hydrogen embrittlement as well as the use of implantable electrodes.

scholarly journals Influence of Strain Rate and Waveshape on Environmentally-Assisted Cracking during Low-Cycle Fatigue of a 304L Austenitic Stainless Steel in a PWR Water Environment

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 197 ◽  
Author(s):  
Thibault Poulain ◽  
Laurent de Baglion ◽  
Jose Mendez ◽  
Gilbert Hénaff
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Strain Rate ◽  
Crack Growth ◽  
Growth Rates ◽  
Low Cycle Fatigue ◽  
Water Environment ◽  
Cycle Fatigue ◽  
Pressurized Water ◽  
Environmentally Assisted Cracking

In this paper, the low cycle fatigue resistance of a 304L austenitic stainless steel in a simulated pressurized water reactor (PWR) primary water environment has been investigated by paying a special attention to the interplay between environmentally-assisted cracking mechanisms, strain rate, and loading waveshape. More precisely, one of the prime interests of this research work is related to the consideration of complex waveshape signals that are more representative of solicitations encountered by real components. A detailed analysis of stress-strain relation, surface damage, and crack growth provides a preliminary ranking of the severity of complex, variable strain rate signals with respect to triangular, constant strain-rate signals associated with environmental effects in air or in PWR water. Furthermore, as the fatigue lives in PWR water environment are mainly controlled by crack propagation, the crack growth rates derived from striation spacing measurement and estimated from interrupted tests have been carefully examined and analyzed using the strain intensity factor range ΔKε. It is confirmed that the most severe signal with regards to fatigue life also induces the highest crack growth enhancement. Additionally two characteristic parameters, namely a threshold strain εth* and a time T*, corresponding to the duration of the effective exposure of the open cracks to PWR environment have been introduced. It is shown that the T* parameter properly accounts for the differences in environmentally-assisted growth rates as a function of waveshape.

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