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Stress corrosion cracking
About: Stress corrosion cracking is a research topic. Over the lifetime, 11340 publications have been published within this topic receiving 138157 citations.
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TL;DR: In this paper, the effect of surface preparation method on the susceptibility of a 304H stainless steel to stress corrosion cracking under simulated atmospheric corrosion conditions was investigated, where MgCl2 was deposited onto four-point bend specimens, which were then placed in a chamber with a relative humidity of 45% and temperature of 60 °C.
180 citations
12 Apr 1988
TL;DR: In this article, a moisture-diffusion analysis of the plastic, deformation and stress analysis of a package, and measurement of some high-temperature properties of the polyethylene has been carried out.
Abstract: Package cracking that occurs in surface-mount devices that have absorbed moisture has been studied by means of a moisture-diffusion analysis of the plastic, deformation and stress analysis of the package, and measurement of some high-temperature properties of the plastic. The validity of the analysis has been confirmed by a measurement of the deformation of packages heated by infrared radiation. Several packages with different level of moisture saturation and hysteresis of moisture absorption have been heated by soldering and the occurrence of package cracking investigated. The vapor pressure and distribution of moisture content of these packages have been calculated by the present analysis. It was found that generated vapor pressure is lower than saturated vapor pressure and depends on the moisture content at the part of the plastic facing the space in which vapor pressure is generated. This example shows that it is possible to evaluate package cracking by the present analysis method quantitatively. >
179 citations
TL;DR: In this article, a study has been made of the HE and SCC of a type 304 and a type 310 austenitic stainless steel, and the results correlated with the presence or absence of α′ martensite, determined by means of a ferrite detector.
Abstract: A study has been made of the HE and SCC of a type 304 and a type 310 austenitic stainless steel, and the results correlated with the presence or absence of α′ martensite, determined by means of a ferrite detector. Hydrogen induced slow crack growth (SCG) was observed at room temperature when type 304 was stressed i) in 1 psig (∼105 N/m2) gaseous hydrogen, ii) after high temperature charging, and iii) while undergoing cathodic charging. The fracture surfaces corresponding to SCG were primarily transgranular and cleavage-like, and were found to be associated with α′. Conditions i) to iii) did not produce SCG in the type 310 steel, in which α′ martensite was not detected, nor did SCG occur when type 304 was stressed in gaseous hydrogen above the MD temperature (∼110°C). These observations indicated that the formation of the martensitic phase was a prerequisite for SCG under these test conditions. Stressing of type 310 while it was undergoing cathodic charging at room temperature was found to produce shallow, nonpropagating cracks, confirming earlier reports that austenite can be embrittled by hydrogen in the absence of α′. SCC occurred in both alloys in boiling aqueous MgCl2 (154°C) with no evidence for α′ formation. The results are discussed in terms of the mechanisms of HE and SCC.
176 citations
TL;DR: In this article, the authors outlined sources of hydrogen attack as well as their induced failure mechanisms in pipeline steels and highlighted several past and recent studies supporting them in line with understanding of the effect of hydrogen on pipeline steel failure.
175 citations
01 Jan 1984
TL;DR: In this paper, the authors present proceedings which give an account of knowledge and understanding of hydrogen embrittlement and stress corrosion cracking from the viewpoints of the authors, with papers by experts in the field contained in each section.
Abstract: This book presents proceedings which give an account of knowledge and understanding of hydrogen embrittlement and stress corrosion cracking from the viewpoints of the authors The book is divided into two sections: (1) hydrogen embrittlement and (2) stress corrosion cracking, with papers by experts in the field contained in each section Contents include: Hydrogen Embrittlement: Overview on hydrogen degradation phenomena; theories of hydrogen induced cracking of steels; hydrogen embrittlement of steels; hydrogen trapping and hydrogen embrittlement; some recent results on the direct observation of hydrogen trapping in metals and its consequence on embrittlement mechanisms; fracture mechanisms and surface chemistry; investigations of environment-assisted crack growth; the role of microstructure in hydrogen embrittlement; hydrogen related second phase embrittlement of solids Stress corrosion cracking: Recent observations on the propagation of stress corrosion cracks and their relevance to proposed mechanisms of stress corrosion cracking; films and their importance in the nucleation of stress corrosion cracking stainless steel; stress corrosion cracking of ferritic and austenitic stainless steels; fundamentals of corrosion fatigue behavior of metals and alloys; hydrogen embrittlement and stress corrosion cracking of aluminum alloys; hydrogen permeation and embrittlement studies on metallic glasses; and industrial occurrence of stress corrosion cracking and means for prediction
175 citations