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| 題名: | Characterizing sliding wear behavior of A1100/AlFe (p) composites produced via repeated fold-forging and annealing |
| 作者: | Tseng, Yu-fong;Liu, Chao-hwa;Lin, Ching-bin |
| 關鍵詞: | Composites;Intermetallic;Morphology;Wear |
| 日期: | 2024-09-27 |
| 上傳時間: | 2024-10-14 12:05:20 (UTC+8) |
| 摘要: | Aluminum matrix/aluminum-iron intermetallic composite materials pose challenges in plastic processing due to the susceptibility of hard intermetallic compound particles to fracture. This study introduces a novel fabrication method involving pure iron mesh, hot-dip aluminum plating, and solidification. Through ten consecutive folding, forging, and intermediate annealing cycles, aluminum matrix and iron undergo diffusion, leading to the formation of Fe2Al5 and FeAl3 interface reaction layers, as confirmed by X-ray diffraction analysis. Subsequent forging cycles cause the breakage or detachment of Fe2Al5 and FeAl3 particles from the interface, resulting in the formation of large-sized Fe2Al5 and small-sized Fe2Al5 intermetallic particles. FeAl3 intermetallic particles are observed via microscopic examination. These particles can be uniformly dispersed within the aluminum matrix through plastic flow, enabling the successful fabrication of A1100/Fe2Al5 and AlFe3 composite sheets. Furthermore, the study investigates the impact of intermetallic compound content, sliding speed, and forward load on the dry sliding wear of A1100/FeAl composites. It is found that Fe2Al5 and AlFe3 intermetallic compound particles effectively mitigate adhesive wear, plowing, and oxidative wear of the composites. With an AlFe intermetallic compound content of 4.3 wt.%, the volume wear rate remains low under conditions corresponding to PV = 56.652 (equivalent to a normal load of 19.6 kPa and a sliding speed of 2.87 m s−1). |
| 關聯: | International Journal of Materials Research 115(10), p.821-835 |
| DOI: | 10.1515/ijmr-2021-8412 |
| 顯示於類別: | [機械與機電工程學系暨研究所] 期刊論文
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