Analysis of the relationship of crack arrest effects with fusion zone size by current detour and Joule heating

Jing Yu; Hongchao Zhang; Dewei Deng; Qianqian Liu; Shengzhi Hao

doi:10.1007/s00170-014-5949-6

Analysis of the relationship of crack arrest effects with fusion zone size by current detour and Joule heating

Jing Yu, Hongchao Zhang, Dewei Deng, Qianqian Liu, Shengzhi Hao

Industrial Engineering

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

7 Scopus citations

Abstract

Specimens of UNS S 31600 stainless steel with precast crack were treated under different discharge parameters. An elliptic hole formed ahead of the crack tip and the thermal compressive stress caused during electropulsing treatment cause the crack arresting. The factors affecting the curvature radius of the crack tip were studied. The crack arrest effect was examined by tensile test and fatigue test. Scanning electron microscopy (SEM), electro backscatter diffraction (EBSD), and transmission electron microscope (TEM) were employed to examine the changes of specimen before and after the treatment. The local recrystallization occurred around the crack tip. The experimental results indicate that the curvature radius of the crack tip is proportional to discharge parameter and crack length. The relationship between discharge parameter and the effectiveness of crack arrest can be obtained.

Original language	English
Pages (from-to)	1465-1474
Number of pages	10
Journal	International Journal of Advanced Manufacturing Technology
Volume	87
Issue number	5-8
DOIs	https://doi.org/10.1007/s00170-014-5949-6
State	Published - Nov 1 2016

Keywords

Crack arrest
Fusion zone size
Joule heating
Remanufacturing

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10.1007/s00170-014-5949-6

Cite this

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title = "Analysis of the relationship of crack arrest effects with fusion zone size by current detour and Joule heating",

abstract = "Specimens of UNS S 31600 stainless steel with precast crack were treated under different discharge parameters. An elliptic hole formed ahead of the crack tip and the thermal compressive stress caused during electropulsing treatment cause the crack arresting. The factors affecting the curvature radius of the crack tip were studied. The crack arrest effect was examined by tensile test and fatigue test. Scanning electron microscopy (SEM), electro backscatter diffraction (EBSD), and transmission electron microscope (TEM) were employed to examine the changes of specimen before and after the treatment. The local recrystallization occurred around the crack tip. The experimental results indicate that the curvature radius of the crack tip is proportional to discharge parameter and crack length. The relationship between discharge parameter and the effectiveness of crack arrest can be obtained.",

keywords = "Crack arrest, Fusion zone size, Joule heating, Remanufacturing",

author = "Jing Yu and Hongchao Zhang and Dewei Deng and Qianqian Liu and Shengzhi Hao",

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T1 - Analysis of the relationship of crack arrest effects with fusion zone size by current detour and Joule heating

AU - Yu, Jing

AU - Zhang, Hongchao

AU - Deng, Dewei

AU - Liu, Qianqian

AU - Hao, Shengzhi

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Specimens of UNS S 31600 stainless steel with precast crack were treated under different discharge parameters. An elliptic hole formed ahead of the crack tip and the thermal compressive stress caused during electropulsing treatment cause the crack arresting. The factors affecting the curvature radius of the crack tip were studied. The crack arrest effect was examined by tensile test and fatigue test. Scanning electron microscopy (SEM), electro backscatter diffraction (EBSD), and transmission electron microscope (TEM) were employed to examine the changes of specimen before and after the treatment. The local recrystallization occurred around the crack tip. The experimental results indicate that the curvature radius of the crack tip is proportional to discharge parameter and crack length. The relationship between discharge parameter and the effectiveness of crack arrest can be obtained.

AB - Specimens of UNS S 31600 stainless steel with precast crack were treated under different discharge parameters. An elliptic hole formed ahead of the crack tip and the thermal compressive stress caused during electropulsing treatment cause the crack arresting. The factors affecting the curvature radius of the crack tip were studied. The crack arrest effect was examined by tensile test and fatigue test. Scanning electron microscopy (SEM), electro backscatter diffraction (EBSD), and transmission electron microscope (TEM) were employed to examine the changes of specimen before and after the treatment. The local recrystallization occurred around the crack tip. The experimental results indicate that the curvature radius of the crack tip is proportional to discharge parameter and crack length. The relationship between discharge parameter and the effectiveness of crack arrest can be obtained.

KW - Crack arrest

KW - Fusion zone size

KW - Joule heating

KW - Remanufacturing

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Analysis of the relationship of crack arrest effects with fusion zone size by current detour and Joule heating

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Keywords

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