| 3 | ELEVATED AND ROOM TEMPERATURE MECHANICAL BEHAVIOR OF BORON DOPED NiAl ALLOYS显示文摘The effects of boron addition on defect hardening at room temperature and on high temperatrue creep properties are investigated in the B2 NiAl intermetallic comopound.It is foundthat boron addition is effective on inereasing the room temperature hardeness on theNi-rich side but it has no effect on the Al rich side of stoichiometry.These obseryationsare attributed to interstitial dissolution of boron in Ni-rich NiAl and to a lack of solubilityand also due to an enrichment at grain boundaries on the Al-rich side.The similar effect is found in high temperature creep resistance of NiAl by bofom addition.The high temperature creep resistance increases on the Ni-rich side but it does not affect the Al-rich side ofoff-stoiciometry. | SHINODAT MISHIMAY SUZUKIT | 1994 | Acta Metallurgica Sinica(English Letters)1994，7，1： | 0 |
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