skip to main content

Title: Orientation dependence of the dislocation microstructure in compressed body-centered cubic molybdenum

The orientation dependence of the deformation microstructure has been investigated in commercial pure molybdenum. After deformation, the dislocation boundaries of compressed molybdenum can be classified, similar to that in face-centered cubic metals, into three types: dislocation cells (Type 2), and extended planar boundaries parallel to (Type 1) or not parallel to (Type 3) a (110) trace. However, it shows a reciprocal relationship between face-centered cubic metals and body-centered cubic metals on the orientation dependence of the deformation microstructure. The higher the strain, the finer the microstructure is and the smaller the inclination angle between extended planar boundaries and the compression axis is. - Highlights: • A reciprocal relationship between FCC metals and BCC metals is confirmed. • The dislocation boundaries can be classified into three types in compressed Mo. • The dislocation characteristic of different dislocation boundaries is different.
Authors:
;  [1] ;  [1] ;  [2] ; ; ;  [1] ;  [3]
  1. School of Materials Science and Engineering, Central South University, Changsha 410083 (China)
  2. (China)
  3. School of Metallurgy and Environment, Central South University, Changsha 410083 (China)
Publication Date:
OSTI Identifier:
22340355
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 91; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BACKSCATTERING; BCC LATTICES; COMPRESSION; DEFORMATION; DISLOCATIONS; ELECTRON DIFFRACTION; FCC LATTICES; MICROSTRUCTURE; MOLYBDENUM; TRANSMISSION ELECTRON MICROSCOPY