The Effect Of Alloying Elements On Wear Behaviour Of Ni-Al
Considerable amount of research has been performed on nickel aluminide (NiAl) over the last decade, with an exponential increase in effort occurring over the last few years. The enormouS potential of NiAI systems mainly from its many attractive properties, such as high oxidation and corrosion res...
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| Format: | Thesis |
| Language: | English |
| Published: |
2004
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| Subjects: | |
| Online Access: | http://eprints.usm.my/30740/1/MOHAMAD_IZHA_ISHAK.pdf |
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| Summary: | Considerable amount of research has been performed on nickel aluminide (NiAl) over the
last decade, with an exponential increase in effort occurring over the last few years. The
enormouS potential of NiAI systems mainly from its many attractive properties, such as
high oxidation and corrosion resistance and relatively low densities, combined with the
ability to retain strength and stiffness at elevated temperature. Furthermore, NiAI has
emerged as potential high temperature structural material because of its high melting
temperature. The main objective of this research is to synthesis Ni-Al by reaction
sintering of partial mechanically alloyed powder and to evaluate the wear behaviour of
the prepared materials.
Banyak penyelidikan telah dijalankan ke atas NiAI sejak sedekad yang lalu dan usaha
terhadap kajiannya meningkat sejak beberapa tahun yang lepas. NiAI mempunyai potensi
besar yang disumbangkan oleh sifat-sifatnya yang menarik seperti rintangan
pengoksidaan dan kakisan yang tinggi dan ketumpatan yang rendah. Sifat-sifat ini
apabila digabungkan mempunyai keupayaan untuk menahan kekuatan dan kekakuan pada
suhu yang tinggi. Selain daripada itu, NiAI berpotensi untuk digunakan sebagai bahan
struktur pada suhu tinggi disebabkan oleh takat lebumya yang tinggi dan konduktiviti
terma yang baik. Tujuan utama penyelidikan adalah untuk sintesis 1\i-AI melalui
persinteran reaktif dan mengkaji kelakuan haus sampel yang disediakan. |
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