Erratum to: Dependence of dynamic fracture resistance on crack velocity in tungsten: Part 1. single crystals

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Page 1248: The first sentence under III. Experimental Results should read: In general, two types of crack velocity behavior were observed, when gauges were placed at 10 -~ 6 H.

Page 1250: The first sentence of the second full paragraph in the right column should read: The value of ~/d obtained in the mid range of speed (1 to 2 • 102 m per second, which is about 4 pct of the speed of longitudinal acoustic waves in tungsten) is comparable to the statically measured effective surface energy in tungsten single crystals at room temperature. 21

METALLURGICAL TRANSACTIONS A

VOLUME 15A, AUGUST 1984-- 1633