Open AccessNumerical relationship between hardness and microstructure of JLF-1 steel after cyclic deformation
Author(s) -
Huailin Li,
Yang Wen,
Yang Qifa
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.338
Subject(s) - lath , materials science , microstructure , martensite , vickers hardness test , dislocation , softening , transmission electron microscopy , deformation (meteorology) , indentation hardness , composite material , nanotechnology
The cyclic softening of a reduced-activation ferritic/martensitic steel, JLF-1, is one of main problems for application. The microstructure of JLF-1 steel after cyclic deformation is analysed by transmission electron microscope and the Vickers hardness is tested. Based on the dislocation theory, the numerical relationship between change in hardness and microstructure of JLF-1 dislocation density, lath width and dislocation cell size is given.