Friction stir welding of API X70 steel incorporating Ti-dioxide
Rasoul Pouriamanesh, Kamran Dehghani*, Rudolf Vallant
In the present work, the microstructural evolution and hardness of HSLA X70 joined by friction stir welding were investigated. The FSW was applied to HSLA X70 with and without the addition of titanium dioxide (TiO2) powders. To evaluate the microstructural features and hardness of different weld zones, optical microscopy and Vickers microhardness measurements were applied. The results show that the distribution of TiO2 powders is strongly dependent on the applied friction stir processing, which in turn changed significantly the microstructure and hardness profile. In this regard, the optimum stirring action resulted in a homogeneous and fine dispersion of particles leading to the domination of an acicular ferrite phase with a hardness of 370 HV. On the other hand, the lower stirring action resulted in coarse particles as well as the development of the polygonal ferrite structure with a hardness of ∼185 HV.
Canadian Metallurgical Quarterly
acicular ferrite
Friction stir welding (FSW)
HSLA steel
microhardness
microstructure
Dive into the research topics of 'Friction stir welding of API X70 steel incorporating Ti-dioxide'. Together they form a unique fingerprint.
Friction stir welding Engineering & Materials Science 100%
Application programming interfaces (API) Engineering & Materials Science 80%
Hardness Engineering & Materials Science 66%
Acicular Crystal Chemistry 57%
Steel Engineering & Materials Science 49%
Microhardness Chemistry 45%
Optical Microscopy Chemistry 37%
Titanium Dioxide Chemistry 34%
Pouriamanesh, R., Dehghani, K., & Vallant, R. (2019). Friction stir welding of API X70 steel incorporating Ti-dioxide. Canadian Metallurgical Quarterly, 58(1), 69-81. https://doi.org/10.1080/00084433.2018.1507780
Friction stir welding of API X70 steel incorporating Ti-dioxide. / Pouriamanesh, Rasoul; Dehghani, Kamran; Vallant, Rudolf.
In: Canadian Metallurgical Quarterly, Vol. 58, No. 1, 02.01.2019, p. 69-81.
Pouriamanesh, R, Dehghani, K & Vallant, R 2019, 'Friction stir welding of API X70 steel incorporating Ti-dioxide', Canadian Metallurgical Quarterly, vol. 58, no. 1, pp. 69-81. https://doi.org/10.1080/00084433.2018.1507780
Pouriamanesh R, Dehghani K, Vallant R. Friction stir welding of API X70 steel incorporating Ti-dioxide. Canadian Metallurgical Quarterly. 2019 Jan 2;58(1):69-81. https://doi.org/10.1080/00084433.2018.1507780
Pouriamanesh, Rasoul ; Dehghani, Kamran ; Vallant, Rudolf. / Friction stir welding of API X70 steel incorporating Ti-dioxide. In: Canadian Metallurgical Quarterly. 2019 ; Vol. 58, No. 1. pp. 69-81.
@article{6f6d3e067b9e4a7687b7871d6282a28e,
title = "Friction stir welding of API X70 steel incorporating Ti-dioxide",
abstract = "In the present work, the microstructural evolution and hardness of HSLA X70 joined by friction stir welding were investigated. The FSW was applied to HSLA X70 with and without the addition of titanium dioxide (TiO2) powders. To evaluate the microstructural features and hardness of different weld zones, optical microscopy and Vickers microhardness measurements were applied. The results show that the distribution of TiO2 powders is strongly dependent on the applied friction stir processing, which in turn changed significantly the microstructure and hardness profile. In this regard, the optimum stirring action resulted in a homogeneous and fine dispersion of particles leading to the domination of an acicular ferrite phase with a hardness of 370 HV. On the other hand, the lower stirring action resulted in coarse particles as well as the development of the polygonal ferrite structure with a hardness of ∼185 HV.",
keywords = "acicular ferrite, Friction stir welding (FSW), HSLA steel, microhardness, microstructure, titanium dioxide",
author = "Rasoul Pouriamanesh and Kamran Dehghani and Rudolf Vallant",
journal = "Canadian Metallurgical Quarterly",
publisher = "Taylor & Francis Group",
T1 - Friction stir welding of API X70 steel incorporating Ti-dioxide
AU - Pouriamanesh, Rasoul
AU - Dehghani, Kamran
AU - Vallant, Rudolf
N2 - In the present work, the microstructural evolution and hardness of HSLA X70 joined by friction stir welding were investigated. The FSW was applied to HSLA X70 with and without the addition of titanium dioxide (TiO2) powders. To evaluate the microstructural features and hardness of different weld zones, optical microscopy and Vickers microhardness measurements were applied. The results show that the distribution of TiO2 powders is strongly dependent on the applied friction stir processing, which in turn changed significantly the microstructure and hardness profile. In this regard, the optimum stirring action resulted in a homogeneous and fine dispersion of particles leading to the domination of an acicular ferrite phase with a hardness of 370 HV. On the other hand, the lower stirring action resulted in coarse particles as well as the development of the polygonal ferrite structure with a hardness of ∼185 HV.
AB - In the present work, the microstructural evolution and hardness of HSLA X70 joined by friction stir welding were investigated. The FSW was applied to HSLA X70 with and without the addition of titanium dioxide (TiO2) powders. To evaluate the microstructural features and hardness of different weld zones, optical microscopy and Vickers microhardness measurements were applied. The results show that the distribution of TiO2 powders is strongly dependent on the applied friction stir processing, which in turn changed significantly the microstructure and hardness profile. In this regard, the optimum stirring action resulted in a homogeneous and fine dispersion of particles leading to the domination of an acicular ferrite phase with a hardness of 370 HV. On the other hand, the lower stirring action resulted in coarse particles as well as the development of the polygonal ferrite structure with a hardness of ∼185 HV.
KW - acicular ferrite
KW - Friction stir welding (FSW)
KW - HSLA steel
KW - microhardness
KW - microstructure
KW - titanium dioxide
JO - Canadian Metallurgical Quarterly
JF - Canadian Metallurgical Quarterly