Journal ArticleDOI
Effect of friction stir welding speed on the microstructure and mechanical properties of a duplex stainless steel
TLDR
In this paper, the effect of the welding speed on the microstructure and mechanical properties of the stir zone (SZ) in friction stir welding (FSW) of SAF 2205 duplex stainless steel was investigated.Abstract:
The present study focuses on the effect of the welding speed on the microstructure and mechanical properties of the stir zone (SZ) in friction stir welding (FSW) of SAF 2205 duplex stainless steel. A single tool, made of a WC-base material, was used to weld 2 mm-thick plates at a constant rotational speed of 600 rpm. X-ray radiography revealed that sound welds were successfully obtained for the welding speeds in the range of 50–200 mm/min, whereas a groove-like defect was formed at the higher speed of 250 mm/min. Moreover, increasing the welding speed decreased the size of the α and γ grains in the SZ, and hence, improved the mean hardness value and the tensile strength of the SZ. These results are interpreted with respect to interplay between the welding speed and the peak temperature in FSW.read more
Citations
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Journal ArticleDOI
Friction stir welded structural materials: beyond Al-alloys
TL;DR: Friction stir welding (FSW) is widely accepted to be one of the most significant welding techniques to emerge in the last 20 years and has been widely used for joining alloys in various industrial applications.
Journal ArticleDOI
Effect of welding processes and conditions on the microstructure, mechanical properties and corrosion resistance of duplex stainless steel weldments—A review
TL;DR: In this article, the effect of welding processes and conditions on microstructure, mechanical properties and corrosion resistance of duplex stainless steels and its various combinations on the basis of structure-property co-relationship are systematically highlighted.
Journal ArticleDOI
A review of friction stir welding of steels: tool, material flow, microstructure, and properties
TL;DR: Friction stir welding (FSW) of steels has reached a new level of technical maturity with the development of reliable welding tools and precise control systems in the past two decades as mentioned in this paper.
Journal ArticleDOI
An assessment of microstructure, hardness, tensile and impact strength of friction stir welded ferritic stainless steel joints
TL;DR: In this paper, the structure and mechanical characterization of a friction stir welded 409M ferritic stainless steel joint were carried out using optical microscopy, microhardness testing, transverse tensile, impact and bend tests were performed.
Journal ArticleDOI
Microstructure, mechanical and corrosion properties of friction stir welded high nitrogen nickel-free austenitic stainless steel
Huabing Li,Zhouhua Jiang,Hao Feng,Shucai Zhang,L. Li,Peide Han,Raja Devesh Kumar Misra,J.Z. Li +7 more
TL;DR: In this article, a 2.4-mm high nitrogen nickel-free austenitic stainless steel plate using friction stir welding (FSW) was applied to a tungsten-rhenium (W-Re) tool.
References
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Book
Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
Book
Recrystallization and Related Annealing Phenomena
F.J. Humphreys,M. Hatherly +1 more
TL;DR: In this paper, the authors discuss the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes, and the subjects treated in this book are all active research areas and form a major part of at least four regular international conference series.
Book
Welding Metallurgy and Weldability of Stainless Steels
TL;DR: In this article, the authors introduce phase diagrams and constitution diagrams for welding of stainless steel welds, as well as a Weldability Testing Appendix 1: Nominal Compositions of Stainless Steels Appendix 2: Etching Techniques for Stainless Steel Welds Author Index Subject Index
Journal ArticleDOI
A process model for friction stir welding of age hardening aluminum alloys
TL;DR: In this article, a numerical 3D heat flow model for friction stir welding (FSW) is developed, based on the method of finite differences, which is implemented in MATLAB 5.2 and validated by comparison with in-situ thermocouple measurements and experimental hardness profiles.