The Direct Powder-Rolling Process for Producing Thin Metal Strip

JOM ◽  
1983 ◽  
Vol 35 (1) ◽  
pp. 34-39 ◽  
Author(s):  
David H. Ro ◽  
Milton W. Toaz ◽  
Vladimir S. Moxson
2012 ◽  
Vol 36 (10) ◽  
pp. 1255-1260 ◽  
Author(s):  
Dong-Hwan Kang ◽  
Jae-Keun Hong ◽  
Nho-Kwang Park ◽  
Tae-Won Kim

2017 ◽  
Vol 737 ◽  
pp. 320-325 ◽  
Author(s):  
Hisashi Imai ◽  
Katsuyoshi Kondoh ◽  
Junko Umeda

Microstructural and mechanical properties of powder metallurgy (PM) with carbon nanotube (CNTs) dispersed copper (Cu) composites were investigated in detail. Pure copper powder was coated with un-bundled CNTs by using the zwitterionic surfactant solution containing CNTs. The powder rolling process was applied to increase the powder surface area to be coated with CNTs. The total rolling reduction of Cu-CNT composite powder by 5 steps rolling was about 75%. With increasing the number of rolling steps, the content of CNTs coated on the Cu powder surface increased because of the increment of the flat surface area of flaky Cu rolled powder. As a result, the CNT content was 0.67mass% after 5 steps powder rolling. It was about twice as that of as-coated Cu-CNT composite powder without rolling. The grain size of PM extruded Cu-CNT composite was about one fifth of that of the extruded monolithic Cu material without CNT. Yield stress of the extruded Cu-CNT composite via the rolling process was 192 MPa, which is about twice that of the extruded monolithic Cu material (88 MPa). CNTs distributed at primary particle boundaries were effective to prevent the grain coarsening by their pinning effects, and this grain refinement was the main strengthening factor of the Cu-CNT composite via rolling process.


2008 ◽  
Vol 185 (1) ◽  
pp. 559-565 ◽  
Author(s):  
Masanori Sakai ◽  
Yasuo Kondo ◽  
Satoshi Minoura ◽  
Takeo Sakamoto ◽  
Tokiyoshi Hirasawa

1983 ◽  
Vol 22 (3) ◽  
pp. 163-165
Author(s):  
E. B. Lozhechnikov

2011 ◽  
Vol 1300 ◽  
Author(s):  
Satoru Miyakawa ◽  
Motonori Nishida ◽  
Nobuyuki Nishiyama ◽  
Haruko Miura ◽  
Akihisa Inoue

ABSTRACTA non-equilibrium Cu-Zr-Ag alloy was designed for the development of an alternative electric connector to Cu-Be alloys. This work aims at producing a Cu-Zr-Ag sheet using a hot-powder-rolling (HPR) process. The sheets were produced by a sequential process of HPR, pre-annealing, and cold rolling, using Cu93.5Zr5.5Ag1 (at.%) alloy powder produced by an argon gas atomization method. The Cu93.5Zr5.5Ag1 alloy sheet has a tensile strength of 1188 MPa and a conductivity of 33.2% IACS, which are similar values to those of Cu-Be alloys. In this paper, we optimize the conditions of the HPR process and reveal the correlation between the microstructure and properties of the Cu-Zr-Ag sheet produced by the HPR process. In addition, we discuss the alloy’s applicability for use as a connecter material.


Sign in / Sign up

Export Citation Format

Share Document