| 학회 |
한국재료학회 |
| 학술대회 |
2013년 봄 (05/23 ~ 05/24, 여수 엠블호텔(THE MVL)) |
| 권호 |
19권 1호 |
| 발표분야 |
B. 나노재료(Nanomaterials) |
| 제목 |
Fabrication and Property Evaluation of WC-TiC with increased Co Contents for a FSW Tool Application by SPS method |
| 초록 |
Friction stir welding(FSW) is a new solid-state joining process which uses frictional heat generated by a rotating and traversing cylindrical tool with a profiled pin along a square butt weld joint. This welding process is quite efficient. Because there are no special pre-weld preparation; and no weld fumes occurrence as compared to other conventional welding method. The powder of tungsten carbide is used to make a bulk material for FSW tool, because the tungsten carbide has a high strength and fracture toughness. Titanium Carbides are used as binders which can be used to inhibit grain growth. The Cobalt powder can decrease the sintering temperature as binder. The spark plasma sintering(SPS) have emerged as a useful technique to density the powder like WC which has the high temperature melting point at relatively low temperatures and shorter times because of activating a high-voltage pulse current with the pressure between gaps in the powder. Densification by SPS is extremely fast compared to conventional sintering methods applying external pressure like Hot Pressure(HP). The sintering behavior of WC–TiC-Co composite powder and mechanical properties of its sintered bulk materials were investigated in this study. The relative densities of the sintered-body were measured by the Archimedes method and the mixed powder, a sintered bulk material was analyzed through X-ray diffraction (XRD). Vickers hardness and fracture toughness of WC–Binders composite is investigated. |
| 저자 |
Jung-Han Ryu1, Hyun-Kuk Park2, Jun-Ho Jang3, Han-Sur Bang1, Hee-Seon Bang4, Ik-Hyun Oh5
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| 소속 |
11Korea Institute of Industrial Technology (KITECH), 22The Institute of joining and manufacture, 3Chosun Univ., 4Korea Institute of Industrial Technology (KITECH), 5The Institute of joining and manufacture |
| 키워드 |
FSW-Tool; WC–Binders; Hard Materials; Mechanical Property; Rapid Sintering
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| E-Mail |
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