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Ishiyama, Shintaro; Buchkremer, H. P.*; St
ver, D.*
Nihon Kinzoku Gakkai-Shi, 68(9), p.831 - 837, 2004/09
Times Cited Count：0 Percentile：0.01(Metallurgy & Metallurgical Engineering)NiAl intermetallics with dispersive Cr particles consolidated by the Hot Isostaic Press(HIP) and Reactive HIP(RHIP) techniques, has been investigated. Mechanical properties of HIPed and RHIPed materials with various Cr concentrations ranging form 0 to 30 mass.%Cr, were examined at various temperatures. The consolidation temperature of RHIP materials decreases with Cr addition; when RHIPing NiAl+xCr compounds with 25 mass% has attained, remarkable high ductility over 17% elongation and over 400MPa tensile strength at 873K. A very high tensile strength of HIPed NiAl+20wt.%Cr about 600MPa with 10% elongation was achieved at 873K.
Ishiyama, Shintaro; Buchkremer, H. P.*; Stver, D.*
Materials Transactions, 44(4), p.759 - 765, 2003/04
Times Cited Count：0 Percentile：0.01(Materials Science, Multidisciplinary)no abstracts in English
*; Ishii, Yoshinobu; *
Journal of Alloys and Compounds, 269, p.162 - 165, 1998/00
Times Cited Count：14 Percentile：65.07(Chemistry, Physical)no abstracts in English
Al(210) surface induced by supersonic oxygen molecular beam at room temperatureXu, Y.*; Demura, Masahiko*; Teraoka, Yuden; Yoshigoe, Akitaka; Sakurai, Junya*; Hirano, Toshiyuki*
no journal, ,
The initial oxidation behavior of a clean NiAl (210) surface was studied at 300 K using a supersonic O
molecular beam (O SSMB) having an O translational energy of 2.3 eV, and real-time photoemission spectroscopy performed with high-brilliance synchrotron radiation. The evolution behaviors of the O 1s, Ni 2p, Al 2p, and Ni 3p spectra were examined over time during irradiation with the O SSMB. The spectral analysis revealed that both the Al atoms and the Ni atoms on the surface were oxidized; however, the oxidation of Al progressed much faster than that of Ni.
