Topic
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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30 Jan 2017
TL;DR: In this paper, the effects of input heat of different welding processes on the microstructure, corrosion, and mechanical characteristics of welded duplex stainless steel (DSS) are reviewed.
Abstract: The effects of input heat of different welding processes on the microstructure, corrosion, and mechanical characteristics of welded duplex stainless steel (DSS) are reviewed. Austenitic stainless steel (ASS) is welded using low-heat inputs. However, owing to differences in the physical metallurgy between ASS and DSS, low-heat inputs should be avoided for DSS. This review highlights the differences in solidification mode and transformation characteristics between ASS and DSS with regard to the heat input in welding processes. Specifically, many studies about the effects of heat energy input in welding process on the pitting corrosion, intergranular stress, stresscorrosion cracking, and mechanical properties of weldments of DSS are reviewed.
79 citations
TL;DR: In this paper, the influence of metallurgy using a range of existing rock bolt steels and (2) commercial steels varied considerably. But the results showed that steel microstructures (pearlitic-ferritic and tempered martensite) had similar resistance to SCC and HE in the most aggressive conditions (pH 2.1 and −1500mVSCE).
79 citations
TL;DR: In this article, the role of pH in chemically assisted fracture and chemically assisted comminution in frictional deformation is evaluated in a double cantilever beam (DCB) crack propagation data.
Abstract: The roles of chemically assisted crack and fracture propagation and chemically assisted comminution in frictional deformation are evaluated in this study. Double cantilever beam (DCB) crack propagation data are presented which show that the role of pH in chemically assisted fracture, and to a lesser extent the role of ionic concentration are important in stress corrosion cracking. Data on very slow crack growth and the stress corrosion limit are also presented. These data suggest that stress corrosion cracking may play an important role in compound earthquakes and in asperity breakdown in faults. The comminution literature is also reviewed in order to assess the role of chemically assisted comminution in frictional deformation. It appears that chemically assisted comminution may be important at low and high ionic strength because it may reduce the effective viscosity and the shear strength of fault gouge. At intermediate ionic concentration the role of pH, as an agent which enhances crack and fracture propagation, appears to be more important in reducing the coefficient of sliding friction.
78 citations
TL;DR: In this paper, an analysis of a change of the mentioned characteristics together with the results of hydrogen permeation and vacuum hydrogen extraction measurements indicate considerable material degradation of trunk pipeline steel after long term service and essential role of hydrogen in these processes.
78 citations
TL;DR: In this paper, flat coupon samples were immersed in binary nitrate salts at temperatures of 400, 500, 600, and 680°C, with air sparging on all tests.
78 citations