A New, High-Strength and High-Corrosion-Resistant Titanium Alloy for Oilwell Use

1991 ◽  
Author(s):  
M. Okada ◽  
A. Kuroda ◽  
S. Kitayama ◽  
Y. Shida ◽  
M. Ueda ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
High Strength ◽  
Corrosion Resistant ◽  
High Corrosion

Development of High-strength High-corrosion-resistant Conductor and Accessories

2020 ◽  
Vol 140 (4) ◽  
pp. 253-260
Author(s):  
Atsushi Kato ◽  
Kazuya Ohtani ◽  
Koji Nagano ◽  
Toshiharu Ogawa ◽  
Masato Watabe ◽  
...  
Keyword(s):  
High Strength ◽  
Corrosion Resistant ◽  
High Corrosion

scholarly journals Anodic Polarization Behavior of Titanium Grade 7 in Dust Deliquescence Salt Environments

2007 ◽  
Author(s):  
Kenneth J. Evans ◽  
Raul B. Rebak
Keyword(s):  
Titanium Alloy ◽  
Crevice Corrosion ◽  
Anodic Polarization ◽  
High Strength ◽  
Yucca Mountain ◽  
Localized Corrosion ◽  
Corrosion Performance ◽  
Corrosion Resistant ◽  
Reducing Conditions ◽  
Titanium Grade

It is planned to use the highly corrosion resistant titanium grade 7 (Ti Gr 7) and a high strength titanium alloy (Ti Gr 29) to fabricate the drip shield for the Yucca Mountain repository. Ti Gr 7 contains 0.15% Palladium (Pd) to increase its corrosion performance, mainly under reducing conditions. It was important to determine the corrosion behavior of Ti Gr 7 in concentrated brines at temperatures higher than 100°C, which may represent the behavior of dust deliquescence solutions. Tests were performed in concentrated NaCl + KCl solutions containing also nitrates and fluorides. Results show that Ti Gr 7 was highly resistant to general and localized corrosion. Some specimens were polarized to potentials higher than 4 volts. None of the tightly creviced specimens suffered crevice corrosion. The presence of fluoride promoted localized corrosion around the edges of the crevice former.

Formation of High Corrosion Resistant Nanotubular Layers on Titanium Alloy Ti13Nb13Zr

2011 ◽  
Vol 183 ◽  
pp. 137-142 ◽  
Author(s):  
A. Ossowska ◽  
A. Zieliński ◽  
M. Supernak
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Electrochemical Method ◽  
Acidic Environment ◽  
Constant Voltage ◽  
Corrosion Resistant ◽  
Corrosion Tests ◽  
Improve Corrosion Resistance ◽  
High Corrosion ◽  
Potentiodynamic Method

This paper presents results of oxidation tests and corrosion investigations of titanium alloy Ti13Nb13Zr performed at different conditions. The oxide layers have been formed by electrochemical method in 2M H3PO4 + 0.3% HF solution for 30 min. and 1 h at 20 V constant voltage. The corrosion tests have been made by potentiodynamic method in Ringer`s solution at pH ranged between 3 and 7. It has been shown that the nanooxide films, which improve corrosion resistance of titanium alloy Ti13Nb13Zr even if acidic environment, have appeared.

Development of High-Strength, High-Corrosion-Resistant Austenitic Stainless Steel for Sour-Gas Service

CORROSION ◽  
1989 ◽  
Vol 45 (9) ◽  
pp. 749-757 ◽  
Author(s):  
T. Nakayama ◽  
K. Fujiwara ◽  
Y. Torii ◽  
T. Inoue
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
High Strength ◽  
Corrosion Resistant ◽  
High Corrosion ◽  
Sour Gas

Physical, Chemical, and Crystallographic Characterization of Anodic Coatings on High Strength Aluminum Base Alloys

1976 ◽  
Vol 34 ◽  
pp. 636-637
Author(s):  
R. E. Herfert ◽  
N. T. McDevitt
Keyword(s):  
Sulfuric Acid ◽  
Salt Spray ◽  
High Strength ◽  
Environmental Stability ◽  
Anodic Films ◽  
Sodium Dichromate ◽  
Corrosion Resistant ◽  
Aerospace Applications ◽  
Bond Strengths ◽  
Adhesive Bonded Joints

Durability of adhesive bonded joints in moisture and salt spray environments is essential to USAF aircraft. Structural bonding technology for aerospace applications has depended for many years on the preparation of aluminum surfaces by a sulfuric acid/sodium dichromate (FPL etch) treatment. Recently, specific thin film anodizing techniques, phosphoric acid, and chromic acid anodizing have been developed which not only provide good initial bond strengths but vastly improved environmental durability. These thin anodic films are in contrast to the commonly used thick anodic films such as the sulfuric acid or "hard" sulfuric acid anodic films which are highly corrosion resistant in themselves, but which do not provide good initial bond strengths, particularly in low temperature peel.The objective of this study was to determine the characteristics of anodic films on aluminum alloys that make them corrosion resistant. The chemical composition, physical morphology and structure, and mechanical properties of the thin oxide films were to be defined and correlated with the environmental stability of these surfaces in humidity and salt spray. It is anticipated that anodic film characteristics and corrosion resistance will vary with the anodizing processing conditions.

SANICRO 41

Alloy Digest ◽  
1995 ◽  
Vol 44 (1) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Oil And Gas ◽  
High Strength ◽  
Heat Treating ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Corrosion Resistant ◽  
Corrosion Resistant Alloy ◽  
Nickel Base

Abstract SANDVIK SANICRO 41 is a nickel-base corrosion resistant alloy with a composition balanced to resist both oxidizing and reducing environments. A high-strength version (110) is available for oil and gas production. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-475. Producer or source: Sandvik.

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