Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy

Zhijin Guo; Yan Zhang; Jianping Zhou; Daqian Sun; Hongmei Li

doi:doi:10.11648/j.ijmpem.20220703.12

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Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy

Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li

Published in International Journal of Mineral Processing and Extractive Metallurgy (Volume 7, Issue 3)

Received: 17 April 2022 Accepted: 24 June 2022 Published: 20 July 2022

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Abstract

In this paper, laser welding of stainless steel and TiNi shape memory alloy dissimilar materials was carried. Microstructures of the joints were analyzed by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Mechanical properties of the joints were evaluated by tensile tests. Based on avoiding the formation of Ti-Fe intermetallics in the joint, three welding processes for SS-TiNi alloy joint were introduced. The joint A was formed while the laser was acted on the SS-TiNi alloy interface and joint fractured along the SS side in weld immediately after welding without filler metal. The joint B was formed while the laser was acted on the Cu interlayer. Experimental results showed that Cu interlayer was helping to decrease the Ti-Fe intermetallics by forming Ti-Cu phases in the weld. The tensile strength of the joint B was 216 MPa. The joint C was formed while the laser was acted on the SS side 1.0 mm. One process was one pass welding involving creation of a joint with one fusion weld and one brazed weld separated by remaining unmelted SS. The mechanical performance of the joint C was determined by the brazed weld formed at SS-TiNi alloy interface with a tensile strength of 256 MPa.

Published in	International Journal of Mineral Processing and Extractive Metallurgy (Volume 7, Issue 3)
DOI	10.11648/j.ijmpem.20220703.12
Page(s)	75-84
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Stainless Steel, TiNi Alloy, Cu Interlayer, Laser Welding, Microstructure, Tensile Strength

References

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APA Style

Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li. (2022). Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy. International Journal of Mineral Processing and Extractive Metallurgy, 7(3), 75-84. https://doi.org/10.11648/j.ijmpem.20220703.12

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ACS Style

Zhijin Guo; Yan Zhang; Jianping Zhou; Daqian Sun; Hongmei Li. Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy. Int. J. Miner. Process. Extr. Metall. 2022, 7(3), 75-84. doi: 10.11648/j.ijmpem.20220703.12

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AMA Style

Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li. Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy. Int J Miner Process Extr Metall. 2022;7(3):75-84. doi: 10.11648/j.ijmpem.20220703.12

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@article{10.11648/j.ijmpem.20220703.12,
  author = {Zhijin Guo and Yan Zhang and Jianping Zhou and Daqian Sun and Hongmei Li},
  title = {Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy},
  journal = {International Journal of Mineral Processing and Extractive Metallurgy},
  volume = {7},
  number = {3},
  pages = {75-84},
  doi = {10.11648/j.ijmpem.20220703.12},
  url = {https://doi.org/10.11648/j.ijmpem.20220703.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20220703.12},
  abstract = {In this paper, laser welding of stainless steel and TiNi shape memory alloy dissimilar materials was carried. Microstructures of the joints were analyzed by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Mechanical properties of the joints were evaluated by tensile tests. Based on avoiding the formation of Ti-Fe intermetallics in the joint, three welding processes for SS-TiNi alloy joint were introduced. The joint A was formed while the laser was acted on the SS-TiNi alloy interface and joint fractured along the SS side in weld immediately after welding without filler metal. The joint B was formed while the laser was acted on the Cu interlayer. Experimental results showed that Cu interlayer was helping to decrease the Ti-Fe intermetallics by forming Ti-Cu phases in the weld. The tensile strength of the joint B was 216 MPa. The joint C was formed while the laser was acted on the SS side 1.0 mm. One process was one pass welding involving creation of a joint with one fusion weld and one brazed weld separated by remaining unmelted SS. The mechanical performance of the joint C was determined by the brazed weld formed at SS-TiNi alloy interface with a tensile strength of 256 MPa.},
 year = {2022}
}

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TY - JOUR
T1 - Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy
AU - Zhijin Guo
AU - Yan Zhang
AU - Jianping Zhou
AU - Daqian Sun
AU - Hongmei Li
Y1 - 2022/07/20
PY - 2022
N1 - https://doi.org/10.11648/j.ijmpem.20220703.12
DO - 10.11648/j.ijmpem.20220703.12
T2 - International Journal of Mineral Processing and Extractive Metallurgy
JF - International Journal of Mineral Processing and Extractive Metallurgy
JO - International Journal of Mineral Processing and Extractive Metallurgy
SP - 75
EP - 84
PB - Science Publishing Group
SN - 2575-1859
UR - https://doi.org/10.11648/j.ijmpem.20220703.12
AB - In this paper, laser welding of stainless steel and TiNi shape memory alloy dissimilar materials was carried. Microstructures of the joints were analyzed by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Mechanical properties of the joints were evaluated by tensile tests. Based on avoiding the formation of Ti-Fe intermetallics in the joint, three welding processes for SS-TiNi alloy joint were introduced. The joint A was formed while the laser was acted on the SS-TiNi alloy interface and joint fractured along the SS side in weld immediately after welding without filler metal. The joint B was formed while the laser was acted on the Cu interlayer. Experimental results showed that Cu interlayer was helping to decrease the Ti-Fe intermetallics by forming Ti-Cu phases in the weld. The tensile strength of the joint B was 216 MPa. The joint C was formed while the laser was acted on the SS side 1.0 mm. One process was one pass welding involving creation of a joint with one fusion weld and one brazed weld separated by remaining unmelted SS. The mechanical performance of the joint C was determined by the brazed weld formed at SS-TiNi alloy interface with a tensile strength of 256 MPa.
VL - 7
IS - 3
ER -

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Author Information

Zhijin Guo

School of Mechanical Engineering, Xinjiang University, Urumchi, China
Yan Zhang

School of Mechanical Engineering, Xinjiang University, Urumchi, China
Jianping Zhou

School of Mechanical Engineering, Xinjiang University, Urumchi, China
Daqian Sun

Key Laboratory of Automobile Materials, School of Materials Science and Engineering, Jilin University, Changchun, China
Hongmei Li

Key Laboratory of Automobile Materials, School of Materials Science and Engineering, Jilin University, Changchun, China

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Plain Text BibTeX RIS

APA Style

Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li. (2022). Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy. International Journal of Mineral Processing and Extractive Metallurgy, 7(3), 75-84. https://doi.org/10.11648/j.ijmpem.20220703.12

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ACS Style

Zhijin Guo; Yan Zhang; Jianping Zhou; Daqian Sun; Hongmei Li. Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy. Int. J. Miner. Process. Extr. Metall. 2022, 7(3), 75-84. doi: 10.11648/j.ijmpem.20220703.12

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AMA Style

Zhijin Guo, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li. Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy. Int J Miner Process Extr Metall. 2022;7(3):75-84. doi: 10.11648/j.ijmpem.20220703.12

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@article{10.11648/j.ijmpem.20220703.12,
  author = {Zhijin Guo and Yan Zhang and Jianping Zhou and Daqian Sun and Hongmei Li},
  title = {Interfacial Microstructure Evolution and Mechanical Properties of Laser Welding Joints for Stainless Steel to TiNi Shape Memory Alloy},
  journal = {International Journal of Mineral Processing and Extractive Metallurgy},
  volume = {7},
  number = {3},
  pages = {75-84},
  doi = {10.11648/j.ijmpem.20220703.12},
  url = {https://doi.org/10.11648/j.ijmpem.20220703.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20220703.12},
  abstract = {In this paper, laser welding of stainless steel and TiNi shape memory alloy dissimilar materials was carried. Microstructures of the joints were analyzed by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Mechanical properties of the joints were evaluated by tensile tests. Based on avoiding the formation of Ti-Fe intermetallics in the joint, three welding processes for SS-TiNi alloy joint were introduced. The joint A was formed while the laser was acted on the SS-TiNi alloy interface and joint fractured along the SS side in weld immediately after welding without filler metal. The joint B was formed while the laser was acted on the Cu interlayer. Experimental results showed that Cu interlayer was helping to decrease the Ti-Fe intermetallics by forming Ti-Cu phases in the weld. The tensile strength of the joint B was 216 MPa. The joint C was formed while the laser was acted on the SS side 1.0 mm. One process was one pass welding involving creation of a joint with one fusion weld and one brazed weld separated by remaining unmelted SS. The mechanical performance of the joint C was determined by the brazed weld formed at SS-TiNi alloy interface with a tensile strength of 256 MPa.},
 year = {2022}
}

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