Measurement and application of arc separability in plasma arc

S. J. Chen; R. Y. Zhang; F. Jiang; Z. Y. Yan; Y. M. Zhang

Measurement and application of arc separability in plasma arc

S. J. Chen
, R. Y. Zhang
, F. Jiang
, Z. Y. Yan
, Y. M. Zhang

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The authors recently demonstrated that the arc plasma and electron flow in an arc could be separated. This separability provided the foundation to develop an ability to adjust the heat and arc pressure distribution without changing the current. To better understand this property, a novel system was developed based on the split anode. The distribution of the pressure and heat from the separated arc plasma was analyzed quantitatively. It was verified that the arc pressure mainly concentrated in the arc plasma. Also, the heat input from the arc plasma exceeded that from the eletron flow. To explore possible applications of this separability, a novel process, namely, separated plasma transferred arc weld surfacing (SPTAWS) is proposed. Grade D steel workpieces were hardfaced using this process. As the separated electron flow increased, the heat-affected zone (HAZ) of the deposited bead was reduced. The microstructure with SPTAWS was found to be better than with conventional plasma transferred arc weld surfacing (PTAWS), especially in the fine-grain zone. The grain is more refined and uniform.

Original language	English
Pages (from-to)	219s-228s
Journal	Welding Journal
Volume	95
Issue number	6
State	Published - Jun 2016

Bibliographical note

Funding Information:
This work is supported financially by the National Science and Technology Major Project of China (Grant No. 2014ZX04001171) and National Natural Science Foundation of China (Grant No.51375021) and the Project was supported by Beijing Postdoctoral Research Foundation (Grant No. 2015zz-15) and by the Chaoyang District Postdoctoral Research Foundation (Grant No.2014zz-02).

Funding

This work is supported financially by the National Science and Technology Major Project of China (Grant No. 2014ZX04001171) and National Natural Science Foundation of China (Grant No.51375021) and the Project was supported by Beijing Postdoctoral Research Foundation (Grant No. 2015zz-15) and by the Chaoyang District Postdoctoral Research Foundation (Grant No.2014zz-02).

Funders	Funder number
Chaoyang District Postdoctoral Research Foundation
National Natural Science Foundation of China (NSFC)	51375021
Beijing Postdoctoral Science Foundation	2015zz-15
National Major Science and Technology Projects of China	2014ZX04001171

Keywords

Arc heat
Arc pressure
Arc separability
Plasma arc
SPTAWS

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Cite this

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title = "Measurement and application of arc separability in plasma arc",

abstract = "The authors recently demonstrated that the arc plasma and electron flow in an arc could be separated. This separability provided the foundation to develop an ability to adjust the heat and arc pressure distribution without changing the current. To better understand this property, a novel system was developed based on the split anode. The distribution of the pressure and heat from the separated arc plasma was analyzed quantitatively. It was verified that the arc pressure mainly concentrated in the arc plasma. Also, the heat input from the arc plasma exceeded that from the eletron flow. To explore possible applications of this separability, a novel process, namely, separated plasma transferred arc weld surfacing (SPTAWS) is proposed. Grade D steel workpieces were hardfaced using this process. As the separated electron flow increased, the heat-affected zone (HAZ) of the deposited bead was reduced. The microstructure with SPTAWS was found to be better than with conventional plasma transferred arc weld surfacing (PTAWS), especially in the fine-grain zone. The grain is more refined and uniform.",

keywords = "Arc heat, Arc pressure, Arc separability, Plasma arc, SPTAWS",

author = "Chen, \{S. J.\} and Zhang, \{R. Y.\} and F. Jiang and Yan, \{Z. Y.\} and Zhang, \{Y. M.\}",

note = "Funding Information: This work is supported financially by the National Science and Technology Major Project of China (Grant No. 2014ZX04001171) and National Natural Science Foundation of China (Grant No.51375021) and the Project was supported by Beijing Postdoctoral Research Foundation (Grant No. 2015zz-15) and by the Chaoyang District Postdoctoral Research Foundation (Grant No.2014zz-02).",

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T1 - Measurement and application of arc separability in plasma arc

AU - Chen, S. J.

AU - Zhang, R. Y.

AU - Jiang, F.

AU - Yan, Z. Y.

AU - Zhang, Y. M.

N1 - Funding Information: This work is supported financially by the National Science and Technology Major Project of China (Grant No. 2014ZX04001171) and National Natural Science Foundation of China (Grant No.51375021) and the Project was supported by Beijing Postdoctoral Research Foundation (Grant No. 2015zz-15) and by the Chaoyang District Postdoctoral Research Foundation (Grant No.2014zz-02).

PY - 2016/6

Y1 - 2016/6

N2 - The authors recently demonstrated that the arc plasma and electron flow in an arc could be separated. This separability provided the foundation to develop an ability to adjust the heat and arc pressure distribution without changing the current. To better understand this property, a novel system was developed based on the split anode. The distribution of the pressure and heat from the separated arc plasma was analyzed quantitatively. It was verified that the arc pressure mainly concentrated in the arc plasma. Also, the heat input from the arc plasma exceeded that from the eletron flow. To explore possible applications of this separability, a novel process, namely, separated plasma transferred arc weld surfacing (SPTAWS) is proposed. Grade D steel workpieces were hardfaced using this process. As the separated electron flow increased, the heat-affected zone (HAZ) of the deposited bead was reduced. The microstructure with SPTAWS was found to be better than with conventional plasma transferred arc weld surfacing (PTAWS), especially in the fine-grain zone. The grain is more refined and uniform.

AB - The authors recently demonstrated that the arc plasma and electron flow in an arc could be separated. This separability provided the foundation to develop an ability to adjust the heat and arc pressure distribution without changing the current. To better understand this property, a novel system was developed based on the split anode. The distribution of the pressure and heat from the separated arc plasma was analyzed quantitatively. It was verified that the arc pressure mainly concentrated in the arc plasma. Also, the heat input from the arc plasma exceeded that from the eletron flow. To explore possible applications of this separability, a novel process, namely, separated plasma transferred arc weld surfacing (SPTAWS) is proposed. Grade D steel workpieces were hardfaced using this process. As the separated electron flow increased, the heat-affected zone (HAZ) of the deposited bead was reduced. The microstructure with SPTAWS was found to be better than with conventional plasma transferred arc weld surfacing (PTAWS), especially in the fine-grain zone. The grain is more refined and uniform.

KW - Arc heat

KW - Arc pressure

KW - Arc separability

KW - Plasma arc

KW - SPTAWS

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M3 - Article

AN - SCOPUS:84978698082

SN - 0043-2296

VL - 95

SP - 219s-228s

JO - Welding Journal

JF - Welding Journal

IS - 6

ER -

Measurement and application of arc separability in plasma arc

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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