Observation of Crack Evolution in Nickel steel of different Thermal Treatment

DOI

10.2991/mems.2012.64How to use a DOI?

Keywords

QLT treatment; QT treatment; In-situ tensile test; Retained and reversed austenite

Abstract

Formation and propagation of crack in quenching+tempering(QT) and quenching+ intercritical quenching+ tempering (QLT) treated Fe-9%Ni-C alloys were investigated by means of in-situ scanning electron microscope (SEM) and transmission electron microscopy (TEM).The sample treated by QLT showed better cryogenic toughness than QT treatment. High content of retained and reversed austenite in QLT-treated alloy could be tested which located not only on the high angle grain boundaries such as prior austenite boundary and packet boundary but also within the laths which was stable during loading because of protection of harder phase. Retained and reversed austenite in QT treated alloy mainly located at high angle grain boundaries and was weak in stability during loading, could not improve cryogenic toughness of the alloy comparatively.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Li Shuo
AU  - Wang Yide
AU  - Tang Di
PY  - 2012/12
DA  - 2012/12
TI  - Observation of Crack Evolution in Nickel steel of different Thermal Treatment
BT  - Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012)
PB  - Atlantis Press
SP  - 236
EP  - 239
SN  - 1951-6851
UR  - https://doi.org/10.2991/mems.2012.64
DO  - 10.2991/mems.2012.64
ID  - Shuo2012/12
ER  -