Reducing hot cracking tendency of dissimilar weld overlay by magnetic arc oscillation

X. Yu; Y. C. Lim; R. Smith; S. S. Babu; D. F. Farson; J. C. Lippold; S. McCracken

doi:10.1179/1743284713Y.0000000358

Reducing hot cracking tendency of dissimilar weld overlay by magnetic arc oscillation

X. Yu, Y. C. Lim, R. Smith, S. S. Babu, D. F. Farson, J. C. Lippold, S. McCracken

Materials Joining

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22 Scopus citations

Abstract

Nickel filler metals are used for joining and repair of dissimilar metal welds in nuclear power plants. However, with some compositions of austenitic stainless steel base metals, weld cracking is observed. In the present work, the solidification cracking behaviour of 52M overlay on stainless steel with and without magnetic stirring was studied. Single, double and triple bead on plate experiments with 52M filler wire were performed on a type 303 stainless steel plate cladding with a single layer of ER308LSi stainless steel. Weldings were then performed with and without magnetic stirring. Although cracking tendency was observed in all experiments, it was seen that magnetic stirring significantly reduced the cracking tendency. Confirmatory electron backscattered diffraction analyses confirmed the grain refinement in 52M beads with magnetic stirring.

Original language	English
Pages (from-to)	930-937
Number of pages	8
Journal	Materials Science and Technology (United Kingdom)
Volume	30
Issue number	8
DOIs	https://doi.org/10.1179/1743284713Y.0000000358
State	Published - Aug 2014

Keywords

Alloy 52
Dissimilar welding
Grain boundaries
Grain refining
Hot cracking
Joining
Magnetic oscillation
Misorientation
Welding

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10.1179/1743284713Y.0000000358

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title = "Reducing hot cracking tendency of dissimilar weld overlay by magnetic arc oscillation",

abstract = "Nickel filler metals are used for joining and repair of dissimilar metal welds in nuclear power plants. However, with some compositions of austenitic stainless steel base metals, weld cracking is observed. In the present work, the solidification cracking behaviour of 52M overlay on stainless steel with and without magnetic stirring was studied. Single, double and triple bead on plate experiments with 52M filler wire were performed on a type 303 stainless steel plate cladding with a single layer of ER308LSi stainless steel. Weldings were then performed with and without magnetic stirring. Although cracking tendency was observed in all experiments, it was seen that magnetic stirring significantly reduced the cracking tendency. Confirmatory electron backscattered diffraction analyses confirmed the grain refinement in 52M beads with magnetic stirring.",

keywords = "Alloy 52, Dissimilar welding, Grain boundaries, Grain refining, Hot cracking, Joining, Magnetic oscillation, Misorientation, Welding",

author = "X. Yu and Lim, {Y. C.} and R. Smith and Babu, {S. S.} and Farson, {D. F.} and Lippold, {J. C.} and S. McCracken",

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AU - Yu, X.

AU - Lim, Y. C.

AU - Smith, R.

AU - Babu, S. S.

AU - Farson, D. F.

AU - Lippold, J. C.

AU - McCracken, S.

PY - 2014/8

Y1 - 2014/8

N2 - Nickel filler metals are used for joining and repair of dissimilar metal welds in nuclear power plants. However, with some compositions of austenitic stainless steel base metals, weld cracking is observed. In the present work, the solidification cracking behaviour of 52M overlay on stainless steel with and without magnetic stirring was studied. Single, double and triple bead on plate experiments with 52M filler wire were performed on a type 303 stainless steel plate cladding with a single layer of ER308LSi stainless steel. Weldings were then performed with and without magnetic stirring. Although cracking tendency was observed in all experiments, it was seen that magnetic stirring significantly reduced the cracking tendency. Confirmatory electron backscattered diffraction analyses confirmed the grain refinement in 52M beads with magnetic stirring.

AB - Nickel filler metals are used for joining and repair of dissimilar metal welds in nuclear power plants. However, with some compositions of austenitic stainless steel base metals, weld cracking is observed. In the present work, the solidification cracking behaviour of 52M overlay on stainless steel with and without magnetic stirring was studied. Single, double and triple bead on plate experiments with 52M filler wire were performed on a type 303 stainless steel plate cladding with a single layer of ER308LSi stainless steel. Weldings were then performed with and without magnetic stirring. Although cracking tendency was observed in all experiments, it was seen that magnetic stirring significantly reduced the cracking tendency. Confirmatory electron backscattered diffraction analyses confirmed the grain refinement in 52M beads with magnetic stirring.

KW - Alloy 52

KW - Dissimilar welding

KW - Grain boundaries

KW - Grain refining

KW - Hot cracking

KW - Joining

KW - Magnetic oscillation

KW - Misorientation

KW - Welding

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Reducing hot cracking tendency of dissimilar weld overlay by magnetic arc oscillation

Abstract

Keywords

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