Investigations on the Structure and Properties of the Hot Extruded AA2014-Nano SiCp Composite

2018 ◽  
Author(s):  
Shanmuga Sundaram Karibeeran ◽  
Dhanalakshmi Sathishkumar ◽  
Sankar Ramaiyan ◽  
Rajamanickam Subban
Keyword(s):  
Base Alloy ◽  
Research Work ◽  
High Strength ◽  
Stir Casting ◽  
Extensive Study ◽  
Age Hardening ◽  
Thermal Coefficient ◽  
Nano Particle ◽  
Nano Composite ◽  
Structural Applications

Aluminium based metal matrix composites with nano particle reinforcement are currently finding wide spread applications in automobile, aerospace and space structures because of their high strength, fatigue life, excellent wear resistance, low thermal coefficient value. However, in order to use these materials for critical automotive applications, extensive study in terms of manufacturing feasibility of the composites have to be carried out. Based on the objectives, the present investigation focuses on the development of Aluminium-SiC nano composite for structural applications. The aim of this research work is to arrive at an optimum weight faction of nano particle which gives the highest properties of the nano composite. The composites were produced by stir casting route. The base alloy and the composites were extruded and subsequently subjected to age hardening treatment. Microstructural evaluation, hardness studies were carried out on both the base alloy and the composites in the as-cast and extruded conditions. The effect of extrusion on the microstructure and properties of the AA2014-0.8 wt.%SiC composites have been discussed in detail.

INCONEL ALLOY 722

Alloy Digest ◽  
1965 ◽  
Vol 14 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Nickel Base Alloy ◽  
Inconel Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract INCONEL Alloy 722, formerly Inconel W alloy, is a high strength, high-temperature nickel-base alloy responding to age hardening heat treatments for maximum properties. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-100. Producer or source: Huntington Alloy Products Division, An INCO Company.

INCONEL X

Alloy Digest ◽  
1953 ◽  
Vol 2 (3) ◽  
Keyword(s):  
High Temperature ◽  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Chemical Corrosion ◽  
International Nickel Company ◽  
Temperature Performance ◽  
Nickel Base ◽  
Corrosion And Oxidation

Abstract INCONEL X is a high-strength, high-temperature nickel-base alloy responding to age hardening for maximum properties. It is highly resistant to chemical corrosion and oxidation. Its creep rate is low under high stresses at 1200-1500 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance as well as heat treating, machining, joining, and surface treatment. Filing Code: Ni-3. Producer or source: International Nickel Company Inc..

PYROMET 88

Alloy Digest ◽  
1989 ◽  
Vol 38 (8) ◽  
Keyword(s):  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Annealed Condition ◽  
Technology Corporation ◽  
Carpenter Technology Corporation ◽  
Nickel Base ◽  
Corrosion And Oxidation ◽  
Effect Of Age

Abstract PYROMET alloy 88 is an age hardenable nickel-base alloy with high strength good corrosion and oxidation resistance. It possesses low creep rate in the temperature range 1200-1500 F (650-820 C). Above 1500 F (820 C), the effect of age hardening is lost and the alloy is used in the annealed condition. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: Ni-185. Producer or source: Carpenter Technology Corporation. Originally published February 1973, revised August 1989.

Effect of Heat Treatment on Microstructure and Tensile Properties of A356/V2O5 Insitu Composites

2016 ◽  
Vol 6 (3) ◽  
pp. 1-10 ◽  
Author(s):  
Amneesh Singla ◽  
Rajnish Garg ◽  
Mukesh Saxena
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Base Alloy ◽  
Stir Casting ◽  
Optical Microscope ◽  
Age Hardening ◽  
Weight Percentage ◽  
Casting Technique ◽  
Microstructure And Mechanical Properties ◽  
Oxide Particles

A 356 alloy reinforced with insitu V2O5 particles by using stir casting technique. The composites were produced by the addition of oxide particles in different weight percentage. The effect of oxide powder addition on microstructure and mechanical properties of produced composites were investigated. The effect of heat treatment on microstructure and mechanical properties were investigated by optical microscope, Microhardness tester and tension test. A significant improvement in hardness and tensile strength was revealed in the produced composite as compared to the base alloy. With the addition of oxide particles, the shape and size of eutectic Si changed which in turn affects the properties. It was observed that 2h solutionizing followed by the artificial aging was sufficient to make the structure homogenize and to produce the hardening precipitates. The improvement in the mechanical properties has been observed due to the age hardening precipitates in addition with refinement of insitu V2O5 particles.

AISI No. 671

Alloy Digest ◽  
1981 ◽  
Vol 30 (10) ◽  
Keyword(s):  
High Temperature ◽  
Elevated Temperatures ◽  
Base Alloy ◽  
Turbine Blades ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Jet Engines ◽  
Cobalt Base Alloy ◽  
Cobalt Base

Abstract AISI No. 685 is a high-temperature, high-strength, cobalt-base alloy. It responds to an age-hardening heat treatment. At elevated temperatures it has high mechanical properties and excellent resistance to corrosion and oxidation. Its numerous applications include high-temperature hardware, turbine blades, parts for jet engines and aerospace components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Co-79. Producer or source: High-strength, high-temperature alloy mills & foundries.

ALUMINUM 336.0

Alloy Digest ◽  
1986 ◽  
Vol 35 (3) ◽  
Keyword(s):  
Heat Treatment ◽  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Permanent Mold ◽  
Temperature Performance ◽  
Permanent Mold Castings ◽  
Aluminum Base ◽  
Hardening Heat Treatment

Abstract ALUMINUM 336.0 is a high-silicon aluminum-base alloy recommended for high-strength permanent-mold castings. It responds to an age-hardening heat treatment. Its applications include automotive and diesel pistons, pulleys and sheaves. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-266. Producer or source: Various aluminum companies.

scholarly journals Analysing the mechanical behavior of A6061/SiC/B4C/Flyash composite fabricated through stir casting

2018 ◽  
Vol 7 (2.8) ◽  
pp. 424
Author(s):  
N Subramani ◽  
R Krishnan
Keyword(s):  
Mechanical Behavior ◽  
Experimental Studies ◽  
Weight Ratio ◽  
High Strength ◽  
Stir Casting ◽  
Mechanical Tests ◽  
Nano Composite ◽  
Reinforcement Distribution ◽  
Particulate Reinforced ◽  
Carbide Particles

Alloys of Aluminium are prominently used in automobiles, aerospace and ship building industries because of their high strength to weight ratio. The aim of this work is to manufacture the particulate reinforced metal matrix composite (PRMMC) materials by using Aluminium 6061 and reinforcing Boron Carbide, particles of silicon and fly ash. The study helps to fabricate an optimized composite material through the best methodology which is identified at the end of the experimental studies which is going to be carried out. This study helps the current researches carried on the nano-composite materials and PRMMC. In this paper, the Aluminium 6061 and its reinforcements are discussed and it gives a methodology to select the optimized method. The specimens fabricated by stir casting are analyzed and categorized according to their mechanical behavior by conducting mechanical tests. The Micro-structure of the specimen is examined by scanning electron microscopy (SEM) and spectrum analysis is done to the reinforcement distribution percentage.

TEM Observation of Precipitate Structures in Al-Zn-Mg Alloys with Additions of Cu/Ag

2014 ◽  
Vol 794-796 ◽  
pp. 985-987 ◽  
Author(s):  
Katsumi Watanabe ◽  
Kenji Matsuda ◽  
Susumu Ikeno ◽  
Tomoo Yoshida ◽  
Satoshi Murakami
Keyword(s):  
Mechanical Property ◽  
Aluminum Alloys ◽  
Base Alloy ◽  
High Strength ◽  
Mg Alloy ◽  
Age Hardening ◽  
Number Density ◽  
Maximum Hardness ◽  
Aging Behavior ◽  
Peak Aged

Al-Zn-Mg alloy has been known as one of the aluminum alloys with the good age-hardening ability and the high strength among commercial aluminum alloys. The mechanical property of the limited ductility, however, is required to further improvement. In this work, three alloys, which were added Cu or Ag into the Al-Zn-Mg alloy, were prepared to compare the effect of the additional elements on the aging behavior. The content of Ag and Cu were 0.2at.% and the same as, respectively. Ag or Cu added alloy showed higher maximum hardness than base alloy. The particle shape and rod shape precipitates were observed in all alloys peak-aged at 423K. According to addition of Ag or Cu, the number density of the precipitates increased higher than that of base alloy.

scholarly journals Tem Observation Of Precipitate Structures In Al-Zn-Mg Alloys With Additions Of Cu/Ag

2015 ◽  
Vol 60 (2) ◽  
pp. 977-979 ◽  
Author(s):  
K. Watanabe ◽  
K. Matsuda ◽  
S. Ikeno ◽  
T. Yoshida ◽  
S. Murakami
Keyword(s):  
Mechanical Property ◽  
Aluminum Alloys ◽  
Base Alloy ◽  
High Strength ◽  
Mg Alloy ◽  
Age Hardening ◽  
Number Density ◽  
Maximum Hardness ◽  
Aging Behavior ◽  
Peak Aged

AbstractAl-Zn-Mg alloy has been known as one of the aluminum alloys with the good age-hardening ability and the high strength among commercial aluminum alloys. The mechanical property of the limited ductility, however, is required to further improvement. In this work, three alloys, which were added Cu or Ag into the Al-Zn-Mg alloy, were prepared to compare the effect of the additional elements on the aging behavior. The content of Ag and Cu were 0.2at.% and the same as, respectively. Ag or Cu added alloy showed higher maximum hardness than base alloy. The particle shape and rod shape precipitates were observed in all alloys peak-aged at 423K. According to addition of Ag or Cu, the number density of the precipitates increased higher than that of base alloy.

scholarly journals Corrosion of Steel in High-Strength Self-Compacting Concrete Exposed to Saline Environment

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Hana A. Yousif ◽  
Farqad F. Al-Hadeethi ◽  
Bashar Al-Nabilsy ◽  
Amani N. Abdelhadi
Keyword(s):  
Compressive Strength ◽  
Electrical Resistance ◽  
Corrosion Potential ◽  
Research Work ◽  
High Strength ◽  
Corrosion Current ◽  
Self Compacting Concrete ◽  
Electrochemical Tests ◽  
Structural Applications ◽  
Corrosion Risk

A research work was carried out to investigate the effectiveness of high-strength self-compacting concrete (SF-R) in controlling corrosion of embedded steel. Reinforced concrete cylinders and plain cubes were subjected to 5% NaCl solution. Slump flow, J-ring, V-funnel, compressive strength, electrical resistance, and electrochemical tests were conducted. Corrosion resisting characteristics of steel were examined by monitoring corrosion potential, polarization resistance, corrosion currents, and Tafel plots. The relationship between corrosion current density and corrosion potential was established. Results were compared with characteristics of a grade 40 MPa reference concrete (R) and grade 70 MPa conventional self-compacting concrete (SP). Results indicated that at 270 days of exposure, the corrosion currents for steel in SF-R were 63- and 16-fold lower compared to those of steel in R and SP concretes, respectively. This concrete showed a considerable increase in electrical resistance and compressive strength of 96 MPa at 28 days of exposure. Relying on corrosion risk classification based on corrosion current densities and corrosion potentials, the steel in SF-R concrete is definitely in the passive condition. The splendid durability performance of steel in SF-R concrete linked to adorable self-compacting features could furnish numerous opportunities for future structural applications in severe environmental conditions.

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