ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The deformation behaviour of Fe2B single crystals with different orientations has been studied by the compression test over the temperature range 800 to 1100° C. Three slip systems (1 1 0) [0 0 1], (1 1 0) [1¯1 1], and (hkl) [1¯11] have been found to be active in the present work. The operation of (h k l) [1 ¯1 1] slip system appears to require about ten times higher stress than those of (1 1 0) [0 0 1] and (1 1 0) [1 ¯1 1] slip systems. The temperature and strain-rate dependence of the yield stress suggests that the Peierls mechanism controls the plastic deformation of Fe2B crystals. The activation energy for the thermally activated deformation of Fe2B varies between 6 and 10 eV and the activation volume between 10b 3 and 160b 3. The remarkably high activation energies have been discussed in connection with the large Burgers vectors of Fe2B.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00754488
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