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.

scholarly journals AN EXPERIMENTAL EVALUATION OF FIBER REINFORCED POLYPROPYLENE THERMOPLASTICS FOR AEROSPACE APPLICATIONS

2014 ◽  
Vol 43 (2) ◽  
pp. 92-97 ◽  
Author(s):  
K. Vijaya Kumar ◽  
Mir Safiulla ◽  
A.N. Khaleel Ahmed
Keyword(s):  
Epoxy Matrix ◽  
Natural Fiber ◽  
High Strength ◽  
Polyphenylene Sulfide ◽  
Environmental Stability ◽  
Fiber Reinforced ◽  
Aerospace Applications ◽  
Thermosetting Polymers ◽  
Reinforced Thermoplastics ◽  
Fiber Reinforced Thermoplastics

Fiber reinforced thermosetting composites have wide scope in the field of Aerospace and MilitaryApplications. These materials exhibit high strength and high stiffness, besides these composites have long fatiguelife, corrosion resistance, environmental stability, thermal insulation and conductivity. Researchers areexploring possibilities to use natural fiber reinforced polymer composites (NFRPCs) in response to the increasingdemand for environmentally friendly materials and also to develop reusable fiber reinforced thermoplastics withthe desire to reduce the cost and to promote the replacement of thermosetting composites.In this work efforts are put to fabricate fiber thermoplastics made of jute, glass and carbon with (PP)polypropylene as the matrix. The mechanical strength of these fiber reinforced thermoplastics was evaluated andcompared with that of fiber reinforced thermosetting polymers made of same fibers along with epoxy matrix. Thetests clearly indicate that the laminates made of fiber reinforced polypropylene have 7 to 8 times less strengthcompared to thermosetting polymers made of fiber epoxy and it is found that for achieving better strength of thematerial, the polypropylene layers should be more than that of the epoxy matrix or to use alternative thermoplasticmaterials like polyphenylene sulfide (PPS), polyetherimide (PEI) and polyetheretherketone (PEEK). Hence thesematerials are feasible for fabricating low load bearing aircraft interior cabin parts and automobile interiorswhich can be reused or reshaped making them easy to re-work and repair.DOI: http://dx.doi.org/10.3329/jme.v43i2.17832

Titanium Containing High Strength Sulfuric Acid Corrosion Resistant Steel

2012 ◽  
Vol 83 (5) ◽  
pp. 465-471
Author(s):  
Hairong Guo ◽  
Tingting Li ◽  
Hualong Li ◽  
Emi Toshihiko
Keyword(s):  
Sulfuric Acid ◽  
Acid Corrosion ◽  
High Strength ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant ◽  
Sulfuric Acid Corrosion

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.

ALCOA 7150-T7751 and T77511

Alloy Digest ◽  
2015 ◽  
Vol 64 (4) ◽  
Keyword(s):  
Compressive Strength ◽  
Corrosion Resistance ◽  
Tensile Properties ◽  
High Strength ◽  
Static Strength ◽  
Corrosion Resistant ◽  
Overaged Condition

Abstract This producer has pioneered the development of the -T77 temper, a high strength corrosion resistant temper for Alloy 7150 plate and extrusions. Alloy 7150-T77 provides weight savings opportunities in structure governed by static strength requirements but where "overaged" condition corrosion resistance is required. This datasheet provides information on composition, tensile properties, and compressive strength. It also includes information on corrosion resistance as well as forming. Filing Code: Al-442. Producer or source: Alcoa Mill Products Inc..

REVERE No. 430

Alloy Digest ◽  
1958 ◽  
Vol 7 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
High Temperature ◽  
Physical Properties ◽  
High Resistance ◽  
High Strength ◽  
Heat Treating ◽  
Aluminum Bronze ◽  
Temperature Performance ◽  
Excellent Corrosion Resistance

Abstract REVERE No. 430 is an aluminum bronze having high strength, excellent corrosion resistance, and high resistance to sulfuric acid. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-63. Producer or source: Revere Copper and Brass Inc..

NIBRON SPECIAL

Alloy Digest ◽  
2015 ◽  
Vol 64 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Marine Environments ◽  
Corrosion Resistant

Abstract Nibron Special is an extra high-strength nickel bronze that is corrosion resistant in both marine environments and industrial media. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as machining and joining. Filing Code: Cu-844. Producer or source: Columbia Metals Ltd.

EVERDUR-637

Alloy Digest ◽  
1967 ◽  
Vol 16 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion Resistant

Abstract EVERDUR-637 is a high-strength, corrosion resistant copper alloy containing silicon and aluminum. It is also characterized by its good forging and machining qualities. It is recommended for fasteners, valve stems, marine hardware, cable connectors, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-183. Producer or source: Anaconda American Brass Company.

PROMET 115N

Alloy Digest ◽  
1967 ◽  
Vol 16 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Aluminum Bronze ◽  
Nickel Aluminum ◽  
Corrosion Resistant ◽  
Nickel Aluminum Bronze

Abstract PROMET-115N is a heat treatable nickel-aluminum bronze recommended for corrosion resistant, high strength bearings, gears and castings. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-175. Producer or source: American Crucible Products Company.

REYNOLDS R-301

Alloy Digest ◽  
1954 ◽  
Vol 3 (5) ◽  
Keyword(s):  
Composite Material ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Bearing Strength ◽  
High Strength Aluminum Alloy

Abstract Reynolds R301 is a composite material, constituted of a core of high strength aluminum alloy, clad with a corrosion-resistant aluminum alloy. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and compressive, shear, and bearing strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Al-16. Producer or source: Reynolds Metals Company.

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