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Jingmang XU1,2, Hui ZHU1,2, Wenfeng GAO1,2, Taoshuo BAI1,2, Jian YANG1,2, Kai WANG3, Yao QIAN1,2, Ping WANG1,2. Effect of laminar plasma quenching technology on the anti-wear and anti-fatigue properties of two types of U75V rail welded joints[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .
@article{title="Effect of laminar plasma quenching technology on the anti-wear and anti-fatigue properties of two types of U75V rail welded joints",
author="Jingmang XU1,2, Hui ZHU1,2, Wenfeng GAO1,2, Taoshuo BAI1,2, Jian YANG1,2, Kai WANG3, Yao QIAN1,2, Ping WANG1,2",
journal="Journal of Zhejiang University Science A",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2500194"
}
%0 Journal Article
%T Effect of laminar plasma quenching technology on the anti-wear and anti-fatigue properties of two types of U75V rail welded joints
%A Jingmang XU1
%A 2
%A Hui ZHU1
%A 2
%A Wenfeng GAO1
%A 2
%A Taoshuo BAI1
%A 2
%A Jian YANG1
%A 2
%A Kai WANG3
%A Yao QIAN1
%A 2
%A Ping WANG1
%A 2
%J Journal of Zhejiang University SCIENCE A
%V -1
%N -1
%P
%@ 1673-565X
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2500194
TY - JOUR
T1 - Effect of laminar plasma quenching technology on the anti-wear and anti-fatigue properties of two types of U75V rail welded joints
A1 - Jingmang XU1
A1 - 2
A1 - Hui ZHU1
A1 - 2
A1 - Wenfeng GAO1
A1 - 2
A1 - Taoshuo BAI1
A1 - 2
A1 - Jian YANG1
A1 - 2
A1 - Kai WANG3
A1 - Yao QIAN1
A1 - 2
A1 - Ping WANG1
A1 - 2
J0 - Journal of Zhejiang University Science A
VL - -1
IS - -1
SP -
EP -
%@ 1673-565X
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2500194
Abstract: The performance of rail welded joints significantly affects the safety of railways. In this study we compare the fatigue damage of U75V thermite welded joints (TWJs) and flash-butt welded joints (FWJs), and subsequently explore the effect of laminar plasma quenching (LPQ) on the anti-wear and anti-fatigue properties of these two types of joints. The results indicate that LPQ reduced the wear of the FWJs by 78-85%. Crack propagation in the quenched thermite welded joints is observed to be controlled by the subsurface defect-initiated cracking (SDIC) mechanism, whereas the crack propagation in quenched flash-butt welded joints involves two mechanisms: surface-originated fatigue cracks (SOFC), as well as SDIC. Elemental fluctuations and changes in dislocation density account for the differences in wear mechanisms and fatigue damage between these two forms of quenched welded joints.
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