scholarly journals Strengthening Mechanisms in Nickel-Copper Alloys: A Review

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1358
Author(s):  
Olexandra Marenych ◽  
Andrii Kostryzhev
Keyword(s):  
Heat Treatment ◽  
Copper Alloys ◽  
High Strength ◽  
Wire Drawing ◽  
Strengthening Mechanisms ◽  
Processing Technologies ◽  
Cu Alloys ◽  
Excellent Corrosion Resistance ◽  
Nickel Copper ◽  
Marine Vessels

Nickel-Copper (Ni-Cu) alloys exhibit simultaneously high strength and toughness, excellent corrosion resistance, and may show good wear resistance. Therefore, they are widely used in the chemical, oil, and marine industries for manufacturing of various components of equipment, such as: drill collars, pumps, valves, impellers, fixtures, pipes, and, particularly, propeller shafts of marine vessels. Processing technology includes bar forging, plate and tube rolling, wire drawing followed by heat treatment (for certain alloy compositions). Growing demand for properties improvement at a reduced cost initiate developments of new alloy chemistries and processing technologies, which require a revision of the microstructure-properties relationship. This work is dedicate to analysis of publicly available data for the microstructure, mechanical properties and strengthening mechanisms in Ni-Cu alloys. The effects of composition (Ti, Al, Mn, Cr, Mo, Co contents) and heat treatment on grain refinement, solid solution, precipitation strengthening, and work hardening are discussed.

PHOSNIC BRONZE

Alloy Digest ◽  
1965 ◽  
Vol 14 (2) ◽  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Copper Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Excellent Corrosion Resistance ◽  
Endurance Strength ◽  
Prolonged Stress ◽  
Hardening Heat Treatment

Abstract CHASE PHOSNIC BRONZE is a high copper alloy combining high strength and high conductivity, both electrical and thermal, in an unusual degree. It has high workability and excellent corrosion resistance. The additions of nickel and phosphorus to the copper render the alloy capable of being hardened and strengthened by age-hardening heat treatment. The alloy has also high endurance strength in the harder drawn tempers of wire, and excellent resistance to creep or flow under the influence of prolonged stress. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-12. Producer or source: Chase Brass & Copper Company Inc.. Originally published November 1953, revised February 1965.

NICKELVAC K-500

Alloy Digest ◽  
2002 ◽  
Vol 51 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Chloride Ion ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Alloying Additions ◽  
Excellent Corrosion Resistance ◽  
Nickel Copper ◽  
Extensive Range ◽  
Very High

Abstract Nickelvac K-500 is a nickel-copper alloy with age-hardening properties imparted by alloying additions of aluminum and titanium. The alloy is characterized by excellent corrosion resistance in an extensive range of natural and chemical environments, excellent resistance to chloride-ion stress-corrosion cracking, and very high strength and hardness. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-595. Producer or source: Allvac Metals Company.

MONEL ALLOY K-500

Alloy Digest ◽  
1966 ◽  
Vol 15 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloys ◽  
Heat Treating ◽  
Bearing Strength ◽  
Temperature Performance ◽  
Excellent Corrosion Resistance ◽  
Nickel Copper

Abstract MONEL Alloy K-500 combines the excellent corrosion resistance characteristics of the MONEL nickel-copper alloys with the added advantages of greaterr strength and hardness. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties and bearing strength as well as 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: Ni-119. Producer or source: Huntington Alloy Products Division.

LANGALLOY K-500

Alloy Digest ◽  
2007 ◽  
Vol 56 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Copper Alloy ◽  
Sea Water ◽  
High Strength ◽  
Age Hardening ◽  
Good Resistance ◽  
Alloying Additions ◽  
Excellent Corrosion Resistance ◽  
Nickel Copper ◽  
High Fatigue

Abstract Langalloy K-500 is a nickel-copper alloy with both aluminum and titanium additions for age hardening. The additions give the alloy high strength and hardness. The alloy has excellent corrosion resistance along with resistance to chloride stress corrosion, high fatigue resistance in sea water, and good resistance to impingement attack. The alloying additions give it a low magnetic permeability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and machining. Filing Code: Ni-653. Producer or source: Langley Alloys.

NICKEL COPPER ALLOYS 505 and 506

Alloy Digest ◽  
1975 ◽  
Vol 24 (2) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Copper Alloys ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Alloy Casting ◽  
Resistance Alloy ◽  
Nickel Copper

Abstract Nickel-Copper Alloys 505 and 506 are strong castings alloys. Both alloys combine high strength with good wear resistance. Alloy 505 (4% silicon) is employed where exceptional resistance to galling is needed. Alloy 506 (3% silicon) is recommended where good (but not exceptional) galling resistance is sufficient. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion and wear resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Ni-215. Producer or source: Nickel alloy casting producers.

Study of the Effects of Two-Step Ageing Heat Treatment on Fatigue Crack Growth on an AA7050 Aluminum Alloy

2014 ◽  
Vol 891-892 ◽  
pp. 1111-1116 ◽  
Author(s):  
Luis Otavio Ribas Lima ◽  
Sheila Cristina Jacumasso ◽  
Cassius Olivio Figueiredo Terra Ruchert ◽  
Juliana Paula Martins ◽  
André Luis Moreira Carvalho
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Low Temperatures ◽  
Crack Propagation Rate ◽  
High Strength ◽  
Propagation Rate ◽  
High Ratio ◽  
Alternative Route ◽  
Cu Alloys ◽  
Alloy Properties

Aluminum alloys are the first chosen materials for aircraft structures since 1930 due to their high ratio between properties and density. Currently, aircraft industries use Al-Zn-Mg-Cu alloys, with T7451 temper, which it shows high strength, fatigue and corrosion resistance. The improvements properties are result from the η’ phase formation, MgZn2. The aim the present work is to propose an alternative route for ageing heat treatment at one AA7050 aluminum alloy, the manner which the formation of η’ phase particles at lower temperatures and longer periods of treatment is obtained. According to the literature, ageing treatments at low temperatures and longer periods optimize the usage of the solution atoms, favoring the growth and nucleation particles. As a result, there is an increase in the density of the particle improving the alloy properties. These improvements show a decrease up to 13% in the crack propagation rate for moderate ΔK levels, keeping the same levels of Vickers hardness but with decay of 12% of ultimate tensile strength.

Effect of Heat Treatment on Conductivity of Cu-1.0Cr-0.12Zr Alloy

2014 ◽  
Vol 1061-1062 ◽  
pp. 7-12
Author(s):  
Yong Qiang Qin ◽  
Yu Cheng Wu ◽  
Xin Min Huang ◽  
Yan Wang ◽  
Jie Wu Cui ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Brinell Hardness ◽  
Copper Alloys ◽  
High Strength ◽  
Optical Microscope ◽  
Comprehensive Properties ◽  
Comprehensive Performance ◽  
Conductive Properties ◽  
Scanning Electron ◽  
Main Factor

Copper alloys with high strength and high conductivity are a serial of materials with excellent comprehensive performance. However, the strength and the conductivity are a pair of conflicting factors. To resolve this contradiction, Cu-1.0Cr-0.12Zr alloy was studied in this paper. With optical microscope, scanning electron microscope, Brinell hardness and the arms bridge, effects of heat treatment on microstructure and properties of such alloys was studied,and we strived to find a heat treatment processing to achieve the best match between the conductivity and the strength of the alloy. This paper focused on the study of conductive properties of the alloy. The main factor infuencing the conductivity of the alloy was the content of the soluting elements. The higher the content,the lower the conductivity, and vice versa. The results showed that the best comprehensive properties were obtained after solid solution at 920°C and then aging at 450°C for 180 min.

ARMCO 17-4 PH

Alloy Digest ◽  
1989 ◽  
Vol 38 (9) ◽  
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Precipitation Hardening ◽  
High Strength ◽  
Heat Treating ◽  
Temperature Performance ◽  
Excellent Corrosion Resistance

Abstract ARMCO 17-4 PH, a precipitation hardening stainless steel, is widely accepted in a broad range of industries. High strength, excellent corrosion resistance, ease of heat treatment and good weldability make it an important alloy to designers and engineers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-7. Producer or source: Baltimore Specialty Steels Corporation. Originally published April 1953, revised June 1959, revised September 1989.

Screw Form Rolling of Beta Type Titanium Alloy Preliminary Worked by Torsion

2010 ◽  
Vol 654-656 ◽  
pp. 906-909 ◽  
Author(s):  
Kazuhiro Kume ◽  
Mitsuaki Furui ◽  
Susumu Ikeno ◽  
Yusuke Ishisaka ◽  
Masayuki Yamamoto
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Titanium Alloys ◽  
Medical Equipment ◽  
High Strength ◽  
Golf Club ◽  
Excellent Corrosion Resistance ◽  
Nuclear Plants ◽  
Club Head

Beta type titanium alloys in a cold processability are light, have high strength, excellent corrosion resistance and the same level as Young's modulus of human bone. Therefore, beta type titanium alloys are used for plant facilities such as nuclear plants, architectural materials, aircraft, car, biomaterial, medical equipment, glasses and golf club head, etc. Microstructure and mechanical properties of beta type titanium alloys processed by rolling and heat treatment have been reported [1]. Additionally, screw form rolling using beta type titanium alloys has also been reported [2]. However, the development in those characteristics after the preliminary working by torsion has been unknown.

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