THERMAL CONDUCTIVITY OF ALUMINUM FABRICATED BY EQUAL CHANNEL ANGULAR PRESSING |
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| S. Lee, S. Kwon |
- Abstract:
- Equal channel angular pressing (ECAP) has the advantage of enabling an ultrafine grain size. Aluminum 1060 is used as a power plant material because of its favorable electrical properties. However, the weak strength of aluminum limits its application. In this study, the thermal conductivity and electrical conductivity of Al 1060 made by ECAP was investigated. ECAP was conducted through the die having a channel angle of 90° and a corner angle of 20° at a temperature of 473 K with a strain rate of 2 mm·s-1. The specimen was then processed with 1 to 8 passes by the route Bc method with 90° rotation. In the case of eight passes, the grain size was reduced to as small as 300 nm. The thermal conductivity gradually decreased with ECAP passes, because of the decreased grain size by ECAP.
- Keywords:
- aluminum, ECAP, thermal conductivity
- Download:
- IMEKO-WC-2012-TC12-P6.pdf
- DOI:
- -
- Event details
- Event name:
- XX IMEKO World Congress
- Title:
Metrology for Green Growth
- Place:
- Busan, REPUBLIC of KOREA
- Time:
- 09 September 2012 - 12 September 2012