SKD11 (ASTM D2) tool steel is a versatile high-carbon, high-chromium, air-hardening tool steel that is charac- terized by a relatively high attainable hardness and numerous, large, chromium rich alloy carbide in the microstructure. SKD11 tool steel provides an effective combination of wear resistance and toughness, tool performance, price, and a wide variety of product forms. The CNTs was good additives to improve the mechanical properties of metal. In this study, 1, 3 vol% CNTs was dispersed in SKD11 matrix by mechanical alloying. The SKD11+ CNT hybrid nanocomposites were investigated by FE-SEM, particle size distribution, hardness and wear resistance. The CNT was well dispersed in the SKD11 matrix and the mechanical properties of the composite were improved by CNTs addition. It shows good fea- sibility as cold work die tool.

• 정성실(Applied Carbon Nanotechnology, CO., LTD.) | Sung-sil Jung Corresponding Author
• 문제세(Applied Carbon Nanotechnology, CO., LTD.) | Je-se Moon
• 이대열(Applied Carbon Nanotechnology, CO., LTD.) | Dae-yeol Lee
• 윤국태(Die and Mold Technology Center, Daegu Mechatronics and Materials Institute 12) | Kuk-tae Youn
• 박춘달(ie and Mold Technology Center, Daegu Mechatronics and Materials Institute 12) | Chun-dal Park
• 송재선(Die and Mold Technology Center, Daegu Mechatronics and Materials Institute 12) | Jae-sun Song