Journal of Materials Processing Technology

, volume 247 , pages 64-72

Study of type-II boundary behavior during SA508-3/EQ309L overlay weld interfacial failure process

Qingzhao Wang ¹

Maolong Zhang ¹

Weihua Liu ¹

Xiao Wei ¹

J J Xu ¹

Junmei Chen ¹

Hao Lu ¹

Chun Yu ¹

Hide authors affiliations Show authors affiliations: 1 affiliation

Key Lab of Shanghai Laser Manufacturing and Materials Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |

Publication type: Journal Article

Publication date: 2017-09-01

Elsevier

Journal of Materials Processing Technology

scimago Q1

wos Q1

SJR: 1.885

CiteScore: 14.3

Impact factor: 7.5

ISSN: 09240136, 18734774

DOI: 10.1016/j.jmatprotec.2017.04.009

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Metals and Alloys

Ceramics and Composites

Computer Science Applications

Industrial and Manufacturing Engineering

Modeling and Simulation

Abstract

Failure behavior of SA508-3/EQ309L overlay weld interface was analyzed. Residual stress measurement showed weld interface was in low stress state at transverse and longitude directions. SA508-3/EQ309L interface was a typical sandwich structure containing a white bright band ended with multi micro-voids type-II boundary. Element changes little around type-II boundary, but hardness varied a lot. The property difference and feature of multi voids made type-II boundary unstable, affecting weld property significantly. Induced shear and tensile tests were applied to study type-II boundary behavior. Under shear stress, type-II boundary suffered work hardening while under tensile stress, type-II boundary cracked first before EQ309L necking. Energy Dispersive Spectrometer (EDS) showed little element variation around type-II boundary. Electron Back-Scattered Diffraction (EBSD) indicated that most part of type-II boundary was ∑3 CSL grain boundary. Under tensile stress, dislocations crossed the boundary, leading to further stress concentration, so as to make the boundary crack under low positive stress.

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Wang Q. et al. Study of type-II boundary behavior during SA508-3/EQ309L overlay weld interfacial failure process // Journal of Materials Processing Technology. 2017. Vol. 247. pp. 64-72.

GOST all authors (up to 50) Copy

Wang Q., Zhang M., Liu W., Wei X., Xu J. J., Chen J., Lu H., Yu C. Study of type-II boundary behavior during SA508-3/EQ309L overlay weld interfacial failure process // Journal of Materials Processing Technology. 2017. Vol. 247. pp. 64-72.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1016/j.jmatprotec.2017.04.009

UR - https://doi.org/10.1016/j.jmatprotec.2017.04.009

TI - Study of type-II boundary behavior during SA508-3/EQ309L overlay weld interfacial failure process

T2 - Journal of Materials Processing Technology

AU - Wang, Qingzhao

AU - Zhang, Maolong

AU - Liu, Weihua

AU - Wei, Xiao

AU - Xu, J J

AU - Chen, Junmei

AU - Lu, Hao

AU - Yu, Chun

PY - 2017

DA - 2017/09/01

PB - Elsevier

SP - 64-72

VL - 247

SN - 0924-0136

SN - 1873-4774

ER -

BibTex

Cite this

BibTex (up to 50 authors) Copy

@article{2017_Wang,

author = {Qingzhao Wang and Maolong Zhang and Weihua Liu and Xiao Wei and J J Xu and Junmei Chen and Hao Lu and Chun Yu},

title = {Study of type-II boundary behavior during SA508-3/EQ309L overlay weld interfacial failure process},

journal = {Journal of Materials Processing Technology},

year = {2017},

volume = {247},

publisher = {Elsevier},

month = {sep},

url = {https://doi.org/10.1016/j.jmatprotec.2017.04.009},

pages = {64--72},

doi = {10.1016/j.jmatprotec.2017.04.009}

}

Publisher

Elsevier

Journal

Journal of Materials Processing Technology

scimago Q1

wos Q1

SJR

1.885

CiteScore

14.3

Impact factor

7.5

ISSN

09240136 (Print)

18734774 (Electronic)