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    Effect of Impact Pressure on Reducing the Weld Residual Stress by Water Jet Peening in Repair Weld to 304 Stainless Steel Clad Plate

    Source: Journal of Pressure Vessel Technology:;2015:;volume( 137 ):;issue: 003::page 31401
    Author:
    Jiang, Wenchun
    ,
    Luo, Yun
    ,
    Wang, Huai
    ,
    Wang, B. Y.
    DOI: 10.1115/1.4029655
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Stainless steel clad plate manufactured by explosive bonding is widely used in the chemical industry, but cracks are often initiated in the clad layer. Repair welding is a popular method to repair the cracked zone. But residual stresses are generated inevitably, which can lead to further cracking. How to decrease the residual stress is critical to ensure the structure integrity. This paper studies a method to reduce weld residual stresses by water jet peening (WJP) in 304 stainless steel clad plate. The effect of impact pressure is discussed. A sequential coupling finite element method is developed to simulate the aswelded residual stresses, which is validated by impact indentation measurement. Then, a user subroutine is developed to model the moving load generated by WJP. The results show that the WJP can introduce compressive stresses on the metal surface and thus decrease the aswelded tensile stresses. As the maximum impact pressure at the center of impact (P0) increases, the residual stresses are decreased greatly and even change to compressive stresses. There is a critical value P0, which changes the tensile stresses to compressive stresses. As P0 increases to 1.4 times the yield strength of 304 stainless steel, the initial tensile stresses on the surface have been decreased to compressive stresses.
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      Effect of Impact Pressure on Reducing the Weld Residual Stress by Water Jet Peening in Repair Weld to 304 Stainless Steel Clad Plate

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    http://yetl.yabesh.ir/yetl1/handle/yetl/159476
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    contributor authorJiang, Wenchun
    contributor authorLuo, Yun
    contributor authorWang, Huai
    contributor authorWang, B. Y.
    date accessioned2017-05-09T01:23:05Z
    date available2017-05-09T01:23:05Z
    date issued2015
    identifier issn0094-9930
    identifier otherpvt_137_03_031401.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/159476
    description abstractStainless steel clad plate manufactured by explosive bonding is widely used in the chemical industry, but cracks are often initiated in the clad layer. Repair welding is a popular method to repair the cracked zone. But residual stresses are generated inevitably, which can lead to further cracking. How to decrease the residual stress is critical to ensure the structure integrity. This paper studies a method to reduce weld residual stresses by water jet peening (WJP) in 304 stainless steel clad plate. The effect of impact pressure is discussed. A sequential coupling finite element method is developed to simulate the aswelded residual stresses, which is validated by impact indentation measurement. Then, a user subroutine is developed to model the moving load generated by WJP. The results show that the WJP can introduce compressive stresses on the metal surface and thus decrease the aswelded tensile stresses. As the maximum impact pressure at the center of impact (P0) increases, the residual stresses are decreased greatly and even change to compressive stresses. There is a critical value P0, which changes the tensile stresses to compressive stresses. As P0 increases to 1.4 times the yield strength of 304 stainless steel, the initial tensile stresses on the surface have been decreased to compressive stresses.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleEffect of Impact Pressure on Reducing the Weld Residual Stress by Water Jet Peening in Repair Weld to 304 Stainless Steel Clad Plate
    typeJournal Paper
    journal volume137
    journal issue3
    journal titleJournal of Pressure Vessel Technology
    identifier doi10.1115/1.4029655
    journal fristpage31401
    journal lastpage31401
    identifier eissn1528-8978
    treeJournal of Pressure Vessel Technology:;2015:;volume( 137 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian