Indexed by：
Abstract：
The micro-process of crack initiation and propagation in austempered ductile iron has been investigated by scanning electron microscope with a micro-tensile stage. It was revealed that the micro-cracks always initiate at the graphite-matrix interface and then propagate along the graphite-matrix interface. The micro-cracks in matrix propagate along the bainitic ferrite-austenite interface. The crack deflection or branching is occurred due to the different orientation of bainitic ferrite. The graphite-matrix interface is cracked in the front of main crack during propagation. The mechanism of strengthening and toughening in austempered ductile iron is further discussed according to these observations.
Keyword：
Reprint 's Address：
Email：
Source ：
Journal of Iron and Steel Research International
ISSN： 1001-0963
CN： 11-2133/TF
Year： 2001
Issue： 6
Volume： 13
Page： 47-51
0 . 1 7 1
JCR@2001
3 . 1 0 0
JCR@2023
ESI Discipline： MATERIALS SCIENCE;
JCR Journal Grade：3
Cited Count：
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 0
Affiliated Colleges：
