Effect of Residual Stress on the Mechanical Properties of FSW Joints with SUS409L
Joint Authors
Lim, Yeong-Seok
Kim, Sang-Hyuk
Lee, Kwang-Jin
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-03
Country of Publication
Egypt
No. of Pages
8
Abstract EN
This study was performed to investigate both the residual stress distribution and the effect of the residual stress formed at the welding region on the mechanical properties of the friction stir welded joints with 409L stainless steel sheets.
Residual stress measurement with hole-drilling method; mechanical property evaluation including tensile test, Charpy impact test, and fatigue test; and microstructure observation were conducted.
It has got no residual stresses to speak of at the center region of the stir zone because the stored stresses are released in the process of the dynamic recrystallization, while a small quantity of compressive residual stresses is formed at the surface region of the stir zone because of strong compression reaction by the tool shoulder.
A considerable amount of compressive residual stresses is formed at the thermomechanical affected zone because of the synergy between the thermal expansion due to the heat conduction from the stir zone and mechanical compression by the tool.
The formation of residual stresses shows a similar tendency between the advancing side and the retreating side.
Both the mitigation of residual stress in the stir zone and the formation of compressive residual stress in the thermomechanical affected zone contribute to the improvement of the mechanical properties of the friction stir welded joints.
American Psychological Association (APA)
Lim, Yeong-Seok& Kim, Sang-Hyuk& Lee, Kwang-Jin. 2018. Effect of Residual Stress on the Mechanical Properties of FSW Joints with SUS409L. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1122527
Modern Language Association (MLA)
Lim, Yeong-Seok…[et al.]. Effect of Residual Stress on the Mechanical Properties of FSW Joints with SUS409L. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1122527
American Medical Association (AMA)
Lim, Yeong-Seok& Kim, Sang-Hyuk& Lee, Kwang-Jin. Effect of Residual Stress on the Mechanical Properties of FSW Joints with SUS409L. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1122527
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122527