Influence of re-ultrasonic impact treatment on fatigue behaviors of S690QL welded joints

Yang Liu; Dongpo Wang; Caiyan Deng; Liqian Xia; Lixing Huo; Lijun Wang; Baoming Gong

doi:10.1016/j.ijfatigue.2014.03.024

Influence of re-ultrasonic impact treatment on fatigue behaviors of S690QL welded joints

Yang Liu
, Dongpo Wang
, Caiyan Deng^*
, Liqian Xia
, Lixing Huo
, Lijun Wang
, Baoming Gong

^*此作品的通讯作者

Tianjin University

科研成果: 期刊稿件 › 文章 › 同行评审

52 引用（Scopus）

摘要

The effects of re-ultrasonic impact treatment with different fatigue cycle intervals between two UITs on the fatigue life of S690QL cruciform welded joints were investigated. Fatigue life, residual stress, SEM micrographs of specimen cross profile, and fatigue fracture were determined. Fatigue determination results indicated that re-UIT increased the total fatigue life when the fatigue cycle interval between two UITs was appropriate. The contribution of residual stress produced by re-UIT to fatigue life was not significant at room temperature. The damages caused by UIT were confirmed with optical microscope and scanning electron microscope. Considering that UIT could close cracks, the effect of re-UIT on fatigue life strongly depended on the competition between the role of closing cracks and the formation process of new damage.

源语言	英语
页（从-至）	155-160
页数	6
期刊	International Journal of Fatigue
卷	66
DOI	https://doi.org/10.1016/j.ijfatigue.2014.03.024
出版状态	已出版 - 9月 2014
已对外发布	是

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@article{b2349f616d8649d9b5bae49fe1ac299f,

title = "Influence of re-ultrasonic impact treatment on fatigue behaviors of S690QL welded joints",

abstract = "The effects of re-ultrasonic impact treatment with different fatigue cycle intervals between two UITs on the fatigue life of S690QL cruciform welded joints were investigated. Fatigue life, residual stress, SEM micrographs of specimen cross profile, and fatigue fracture were determined. Fatigue determination results indicated that re-UIT increased the total fatigue life when the fatigue cycle interval between two UITs was appropriate. The contribution of residual stress produced by re-UIT to fatigue life was not significant at room temperature. The damages caused by UIT were confirmed with optical microscope and scanning electron microscope. Considering that UIT could close cracks, the effect of re-UIT on fatigue life strongly depended on the competition between the role of closing cracks and the formation process of new damage.",

keywords = "Fatigue, Re-ultrasonic impact treatment, Residual stress, Ultrasonic impact damage, Welded joints",

author = "Yang Liu and Dongpo Wang and Caiyan Deng and Liqian Xia and Lixing Huo and Lijun Wang and Baoming Gong",

year = "2014",

month = sep,

doi = "10.1016/j.ijfatigue.2014.03.024",

language = "English",

volume = "66",

pages = "155--160",

journal = "International Journal of Fatigue",

issn = "0142-1123",

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}

TY - JOUR

T1 - Influence of re-ultrasonic impact treatment on fatigue behaviors of S690QL welded joints

AU - Liu, Yang

AU - Wang, Dongpo

AU - Deng, Caiyan

AU - Xia, Liqian

AU - Huo, Lixing

AU - Wang, Lijun

AU - Gong, Baoming

PY - 2014/9

Y1 - 2014/9

N2 - The effects of re-ultrasonic impact treatment with different fatigue cycle intervals between two UITs on the fatigue life of S690QL cruciform welded joints were investigated. Fatigue life, residual stress, SEM micrographs of specimen cross profile, and fatigue fracture were determined. Fatigue determination results indicated that re-UIT increased the total fatigue life when the fatigue cycle interval between two UITs was appropriate. The contribution of residual stress produced by re-UIT to fatigue life was not significant at room temperature. The damages caused by UIT were confirmed with optical microscope and scanning electron microscope. Considering that UIT could close cracks, the effect of re-UIT on fatigue life strongly depended on the competition between the role of closing cracks and the formation process of new damage.

AB - The effects of re-ultrasonic impact treatment with different fatigue cycle intervals between two UITs on the fatigue life of S690QL cruciform welded joints were investigated. Fatigue life, residual stress, SEM micrographs of specimen cross profile, and fatigue fracture were determined. Fatigue determination results indicated that re-UIT increased the total fatigue life when the fatigue cycle interval between two UITs was appropriate. The contribution of residual stress produced by re-UIT to fatigue life was not significant at room temperature. The damages caused by UIT were confirmed with optical microscope and scanning electron microscope. Considering that UIT could close cracks, the effect of re-UIT on fatigue life strongly depended on the competition between the role of closing cracks and the formation process of new damage.

KW - Fatigue

KW - Re-ultrasonic impact treatment

KW - Residual stress

KW - Ultrasonic impact damage

KW - Welded joints

UR - https://www.scopus.com/pages/publications/84901985905

U2 - 10.1016/j.ijfatigue.2014.03.024

DO - 10.1016/j.ijfatigue.2014.03.024

M3 - Article

AN - SCOPUS:84901985905

SN - 0142-1123

VL - 66

SP - 155

EP - 160

JO - International Journal of Fatigue

JF - International Journal of Fatigue

ER -

Influence of re-ultrasonic impact treatment on fatigue behaviors of S690QL welded joints

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