J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (11): 2183-2188.DOI: 10.1016/j.jmst.2018.03.014
Special Issue: FSW-and-FSP-articles 2018; Stainless Steel & High Strength Steel 2018
• Orginal Article • Previous Articles Next Articles
H. Zhangab, D. Wanga*(), P. Xuea, L.H. Wua, D.R. Nia, B.L. Xiaoa, Z.Y. Maab**()
Received:
2017-12-01
Revised:
2018-02-22
Accepted:
2018-03-19
Online:
2018-11-20
Published:
2018-11-26
Contact:
Wang D.,Ma Z.Y.
H. Zhang, D. Wang, P. Xue, L.H. Wu, D.R. Ni, B.L. Xiao, Z.Y. Ma. Achieving ultra-high strength friction stir welded joints of high nitrogen stainless steel by forced water cooling[J]. J. Mater. Sci. Technol., 2018, 34(11): 2183-2188.
Fig. 1. Cross-sectional macrographs of (a) air-cooled and (b) water-cooled FSW HNS joints; detailed microstructures of (c) air-cooled and (d) water-cooled joints.
Sample | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Joint efficiency |
---|---|---|---|---|
BM | 1350 ± 40 | 1613 ± 74 | 7 | - |
Air-cooled joint | 944 ± 35 | 1150 ± 23 | 13.3 | 71.3% |
Water-cooled joint | 1071 ± 27 | 1295 ± 32 | 11 | 80.3% |
Table 1 Mechanical properties of FSW HNS joints obtained via different cooling methods.
Sample | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Joint efficiency |
---|---|---|---|---|
BM | 1350 ± 40 | 1613 ± 74 | 7 | - |
Air-cooled joint | 944 ± 35 | 1150 ± 23 | 13.3 | 71.3% |
Water-cooled joint | 1071 ± 27 | 1295 ± 32 | 11 | 80.3% |
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