Densification and Mechanical Property of Nanostructured NiAl Produced by Mechanical-Alloying and Spark-Plasma Sintering
2004 ◽
Vol 449-452
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pp. 1101-1104
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Keyword(s):
Mechanically-alloyed NiAl powder was sintered by Spark-Plasma Sintering (SPS) process. Densification behavior and mechanical property were determined. Above 97% relative density was obtained after sintering at 1150oC for 5min. Crystallite size determined by the Scherrer method was approximately 80 nm. TEM observation revealed a relative larger crystallite size. X-ray diffraction analysis showed that the sintered bodies were composed mainly of NiAl phase together with Ni3Al phase. Sintered NiAl body showed an average Vickers hardness of 555Hv, transverse-rupture strength of 1393MPa, 4-point-bending strength of 1100MPa, and fracture toughness of 19.9MPa m-1/2
2003 ◽
Vol 10
(3)
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pp. 172-175
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2011 ◽
Vol 509
(10)
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pp. 4081-4083
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Keyword(s):
Keyword(s):
Keyword(s):
2007 ◽
Vol 336-338
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pp. 1050-1052
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