Next Article in Journal
Interface Characteristic of Explosive-Welded and Hot-Rolled TA1/X65 Bimetallic Plate
Next Article in Special Issue
Precipitation and Grain Size Effects on the Tensile Strain-Hardening Exponents of an API X80 Steel Pipe after High-Frequency Hot-Induction Bending
Previous Article in Journal
A Fragmentation Criterion for the Interface of a Hydrostatic Extruded Al-Mg-Compound
Previous Article in Special Issue
Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing
Open AccessArticle

Effect of Hot Mill Scale on Hydrogen Embrittlement of High Strength Steels for Pre-Stressed Concrete Structures

1
Department of Engineering and Applied Sciences, University of Bergamo, Dalmine (BG) 24044, Italy
2
Consorzio Superfici Grandi Interfase (CSGI), Unit of Research of Bergamo, Dalmine (BG) 24044, Italy
3
Consorzio Interuniversitario Nazionale per la Scienze e Tecnologia dei Materiali (INSTM), Unity of Research of Bergamo, Dalmine (BG) 24044, Italy
*
Author to whom correspondence should be addressed.
Metals 2018, 8(3), 158; https://doi.org/10.3390/met8030158
Received: 2 February 2018 / Revised: 23 February 2018 / Accepted: 23 February 2018 / Published: 3 March 2018
(This article belongs to the Special Issue Mechanical Behavior of High-Strength Low-Alloy Steels)
The presence of a conductive layers of hot-formed oxide on the surface of bars for pre or post-compressing structures can promote localized attacks as a function of pH. The aggressive local environment in the occluded cells inside localized attacks has as consequence the possibility of initiation of stress corrosion cracking. In this paper, the stress corrosion cracking behavior of high strength steels proposed for tendons was studied by means of Constant Load (CL) tests and Slow Strain Rate (SSR) tests. Critical ranges of pH for cracking were verified. The promoting role of localized attack was confirmed. Further, electrochemical tests were performed on bars in as received surface conditions, in order to evaluate pitting initiation. The adverse effect of mill scale was recognized. View Full-Text
Keywords: stress corrosion cracking; localized corrosion; pre-stressed concrete; hydrogen embrittlement stress corrosion cracking; localized corrosion; pre-stressed concrete; hydrogen embrittlement
Show Figures

Figure 1

MDPI and ACS Style

Cabrini, M.; Lorenzi, S.; Pastore, T.; Pesenti Bucella, D. Effect of Hot Mill Scale on Hydrogen Embrittlement of High Strength Steels for Pre-Stressed Concrete Structures. Metals 2018, 8, 158.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop