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Indexed by:期刊论文

Date of Publication:2012-03-14

Journal:VACUUM

Included Journals:SCIE、EI

Volume:86

Issue:9,SI

Page Number:1273-1277

ISSN No.:0042-207X

Key Words:Low energy high current pulsed electron beam (LEHCPEB); D2 steel; Craters; Nano-twins; Feathery structures; Amorphous

Abstract:A detailed investigation concerning the microstructure and phase formations in the crater-erupted areas formed under low energy high current pulsed electron beam bombardment has been carried out for a treated AISI D2 steel. The crater formations are initiated at carbides. Such carbide eruption events change the composition, phase selection and grain growth behaviour inside the craters. Under these extremely non-equilibrium conditions, amorphous patches and feathery type structures containing twinned nano-grains are retained. (C) 2011 Elsevier Lid. All rights reserved.