Deformation Mechanisms in Be 12 X Compounds
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DEFORMATION MECHANISMS IN Be 12 X COMPOUNDS
S. SONDHI*, R. G. HOAGLAND*, J. P. HIRTH J. L. BRIMHALL**, L. A. CHARLOT** and S. M. BRUEMMER** *Pacific Northwest Laboratory, Richland, WA 99352 **Department of Mechanical & Materials Engineering, Washington State University, Pullman, WA 99164-2920. ABSTRACT Dislocation structures have been examined, and active slip systems identified, in Be 12 Nb after compressive deformation at 20, 800, 900,1000 and 12000 C. A large number of slip systems are active at 12000C, but these decrease significantly at temperatures below 10000C. Dislocation structures at low temperatures are limited to 1/2
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