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16

Corrosion Behavior of Ti-6Al-4V with Different Thermomechanical Treatments and Microstructures

host posted on June 16, 2010 19:15
M. Atapour, A. Pilchak, and G. S. Frankel et al.
The corrosion behavior of four different microstructures of Ti-6Al-4V with varying volume fractions of primary α (0, 10%∼20%, 40%∼50%, and ∼90%) was investigated in sodium chloride (NaCl) and hydrochloric acid (HCl) solutions. The microstructure constituent morphologies and distributions were chara ... [Corrosion 66 065004 (2010)] published Tue Jun 01, 2010.

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16

Novel Multi-Electrode Test Method for Evaluating Inhibition of Underdeposit Corrosion—Part 2: Sour Conditions

host posted on June 16, 2010 19:15
G. Hinds and A. Turnbull
In the first part of this two-part paper we reported on the development of a novel test method to evaluate the performance of inhibitors for underdeposit corrosion under sweet (carbon dioxide [CO2]) conditions for oil and gas applications. The use of a multi-electrode array enables examination of t ... [Corrosion 66 056002 (2010)] published Sat May 01, 2010.

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16

Metal Corrosion Rate Determination of Different Solutions and Reinforced Concrete Specimens by Means of a Noncontacting Corrosion Method

host posted on June 16, 2010 19:15
C. Andrade and I. Martínez
All the current techniques used to measure the metallic corrosion require contact with the metal. Particularly, in the case of reinforcement corrosion, this signifies the need to reach the bar that is embedded in the concrete, which consequently may result in the disruption of the integrity of the ... [Corrosion 66 056001 (2010)] published Sat May 01, 2010.

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16

Oxidation Kinetics of Nd-Fe-B Permanent Magnets Prepared by Spark Plasma Sintering

host posted on June 16, 2010 19:15
W. Q. Liu, M. Yue, and G. P. Wang et al.
An anisotropic Nd-Fe-B magnet was prepared by the spark plasma sintering (SPS) technique. A magnet with the same composition was produced using the conventional sintering method for comparison. The oxidation behavior in oxidizing environments for both magnets was studied. The microstructure and com ... [Corrosion 66 055004 (2010)] published Sat May 01, 2010.

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16

Prediction of Critical Crevice Potentials for Ni-Cr-Mo Alloys in Simulated Crevice Solutions as a Function of Molybdenum Content

host posted on June 16, 2010 19:15
F. Bocher, R. Huang, and J. R. Scully et al.
Critical potentials for crevice corrosion initiation were predicted for Ni-22Cr-XMo alloys (X=0,3, 6, 9, 13%), Alloy 625 (UNS N06625), and Alloy 22 (UNS N06022) based on electrochemical oxidation behavior in various artificial crevice solutions using an adaptation of a previously developed approach ... [Corrosion 66 055002 (2010)] published Sat May 01, 2010.

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16

2009 W.R. Whitney Award Lecture: Local Hydrogen Generation and Its Impact on Environment-Assisted Cracking and Crevice Corrosion

host posted on June 16, 2010 19:15
A. Turnbull
An overview is given of the key role for reduction of hydrogen ions and water in determining the local chemistry and electrochemistry in crevices and cracks. Thus, the ability to cathodically protect long, tight crevices and cracks is explained on the basis of depletion of oxygen but also on the sl ... [Corrosion 66 055001 (2010)] published Sat May 01, 2010.

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16

Potential-pH (Pourbaix) Diagrams as Aids for Screening Corrosion Inhibitors and Sequestering Agents

host posted on June 16, 2010 19:15
D. C. Silverman and A. L. Silverman
Potential-pH (Pourbaix) diagrams are used as road maps for aiding in predicting the most stable states of a metal, its corrosion products, and its associated ions in an aqueous solution. It is presented in a plot of equilibrium potential vs. hydrogen ion activity. Organic ions, including those of b ... [Corrosion 66 055003 (2010)] published Sat May 01, 2010.

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16

Novel Multi-Electrode Test Method for Evaluating Inhibition of Underdeposit Corrosion—Part 1: Sweet Conditions

host posted on June 16, 2010 19:15
G. Hinds and A. Turnbull
A multi-electrode test method has been developed to assess the performance of corrosion inhibitors under sand deposits for oil and gas applications. The electrode array is mounted in a cup under a layer of sand and coupled to an external carbon steel electrode in such a way that the galvanic corros ... [Corrosion 66 046001 (2010)] published Thu Apr 01, 2010.

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16

Chemical Composition and Corrosiveness of the Condensate in Top-of-the-Line Corrosion

host posted on June 16, 2010 19:15
D. Hinkson, Z. Zhang, and M. Singer et al.
The three key aspects of the top-of-the-line corrosion process are condensation, chemical speciation, and corrosion. The focus of this study is on the condensate speciation through a thermodynamic approach. Specifically, the goal of this study was to determine the concentration of acetic acid in th ... [Corrosion 66 045002 (2010)] published Thu Apr 01, 2010.

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16

Nominally Anaerobic Corrosion of Carbon Steel in Near-Neutral pH Saline Environments

host posted on June 16, 2010 19:15
B. W. A. Sherar, P. G. Keech, and Z. Qin et al.
Gas transmission pipeline corrosion commences when coatings disbond, exposing the steel to groundwater. When this occurs, a number of anaerobic and aerobic corrosion scenarios can be envisaged. The initial nominally anaerobic corrosion period has been investigated by applying a combination of elect ... [Corrosion 66 045001 (2010)] published Thu Apr 01, 2010.

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