A combination of high electrical conductivity and mechanical strength in AA1070 commercially pure aluminum wires fabricated by KoBo extrusion

Author(s):  
Adelajda Polkowska
Author(s):  
Zhikun Liu ◽  
Yiliang Liao ◽  
Gary J. Cheng ◽  
Yuefeng Wang

Nanotwins in metallic nanowires can improve mechanical strength and maintain high electrical conductivity. We demonstrated a method of pulse laser assisted electrodeposition, which can generate dense nanotwins with different directions in copper nanowires of uniform length. Transmission electron microcopy characterization shows at lower electrochemical potential of −0.2 Volt, nanotwins tend to align along the longitudinal direction of the nanowires whereas at the high potential −0.8 Volt, nanotwins of {111}/<112> type that cross the width of the wire are formed. We investigated the two types of nanotwins by comparing the microstructures under different electrochemistry and laser setting. Two different mechanisms are proposed for two kinds of nanotwin — annealing twins and growth twins.


2017 ◽  
Vol 887 ◽  
pp. 122-127
Author(s):  
Nabeel Alshabatat ◽  
Adnan I.O. Zaid ◽  
Safwan M. Al-Qawabah

Aluminum and its alloys are the second used materials after steels due to their useful and attractive properties. In this paper, the effects of 4% copper addition to commercially pure aluminum grain refined by 0.15% vanadium are investigated. In particular, the effects of alloying on the mechanical behavior, fatigue life and strength are considered. The main objective of this study is to improve the mechanical strength and the fatigue strength of aluminum by refining its columnar microstructure. The obtained results show that the addition of 4% copper and 0.15%V to commercially pure aluminum significantly refined its grain size, and hence improve its mechanical strength as well as its fatigue life and strength.


2019 ◽  
Vol 11 (49) ◽  
pp. 46026-46033 ◽  
Author(s):  
Hyeon Jun Sim ◽  
Hyunsoo Kim ◽  
Yongwoo Jang ◽  
Geoffrey M. Spinks ◽  
Sanjeev Gambhir ◽  
...  

Alloy Digest ◽  
1988 ◽  
Vol 37 (1) ◽  

Abstract CDA C18700 is a copper-base alloy containing lead (nominally 1.0%). The lead is added to impart free-cutting properties to the metal. Although the lead lowers the electrical conductivity of CDA C18700 slightly below that of tough-pitch copper, it still has high electrical conductivity well within the limits needed for most current-carrying requirements. Typical uses comprise electrical motor and switch parts, electrical connectors and screw-machine parts requiring high conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-533. Producer or source: Copper and copper alloy mills.


Alloy Digest ◽  
1974 ◽  
Vol 23 (2) ◽  

Abstract ALUMINUM 1100 is commercially pure aluminum and is characterized by its excellent ability to be drawn, spun, stamped or forged. It has good weldability, excellent resistance to corrosion and many home, architectural and industrial applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-44. Producer or source: Various aluminum companies. Originally published October 1956, revised February 1974.


Alloy Digest ◽  
1975 ◽  
Vol 24 (12) ◽  

Abstract Copper Alloy NO. 182 is an age-hardening type of alloy that combines relatively high electrical conductivity with good strength and hardness. It was formerly known as Chromium Copper and its applications include such uses as resistance-welding-machine electrodes, switch contacts and cable connectors. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-305. Producer or source: Copper and copper alloy mills.


Alloy Digest ◽  
1977 ◽  
Vol 26 (5) ◽  

Abstract Copper Alloy No. 815 is an age-hardenable cast copper-chromium alloy. It is characterized by high electrical and thermal conductivities combined with medium hardness and strength in the age-hardened condition. It is used for components requiring high electrical conductivity or high thermal conductivity. 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-332. Producer or source: Copper alloy foundries.


Sign in / Sign up

Export Citation Format

Share Document