Effect of W addition on microstructure and mechanical properties of Ni base dual two-phase intermetallic alloys
Keyword(s):
ABSTRACTThe effect of W addition on microstructure and mechanical properties of Ni3Al (L12) and Ni3V (D022) two-phase intermetallic alloys has been investigated. W was added to the base alloy composition, Ni75Al10V12Nb3 (at. %) in place of either Ni, Al or V. The W-added alloy ingots were heat-treated in vacuum at 1575 K for 5 h. The majority of W-added alloys showed a dual two-phase microstructures while the alloy in which 3 at. % W substituted for Ni exhibited the dual two-phase microstructure containing W solid solution dispersions. Vickers hardness was significantly enhanced by W addition, which is primarily due to solid-solution strengthening.
2007 ◽
Vol 353-358
◽
pp. 718-721
2007 ◽
Vol 561-565
◽
pp. 375-378
Keyword(s):
2010 ◽
Vol 654-656
◽
pp. 635-638
◽
2013 ◽
Vol 747-748
◽
pp. 426-430
2015 ◽
Vol 817
◽
pp. 307-311
◽