Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel
Stress relief treatments were carried out separately with a pneumatic chipping hammer, ultrasonic peening treatment, and heat treatment for metal active-gas welding (MAG) welded joints of 2205 duplex stainless steel. The effects of these methods on the residual stress, microstructure, mechanical pro...
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2020-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/19/4272 |
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| author | Xiao-qin Zha Yi Xiong Tian Zhou Yong-feng Ren Peng-hui Hei Zhi-liang Zhai Jukka Kömi Marko Huttula Wei Cao |
| author_facet | Xiao-qin Zha Yi Xiong Tian Zhou Yong-feng Ren Peng-hui Hei Zhi-liang Zhai Jukka Kömi Marko Huttula Wei Cao |
| author_sort | Xiao-qin Zha |
| collection | DOAJ |
| description | Stress relief treatments were carried out separately with a pneumatic chipping hammer, ultrasonic peening treatment, and heat treatment for metal active-gas welding (MAG) welded joints of 2205 duplex stainless steel. The effects of these methods on the residual stress, microstructure, mechanical properties and corrosion resistance of welded joints were studied. Results show the stress state of the weld and the surrounding area was effectively improved by the pneumatic chipping hammer and ultrasonic peening treatment, and the residual stress field of the surface layer changed from tensile stress to compressive stress. On the contrary, low-temperature stress relieving annealing had no obvious effect on stress distribution. After the pneumatic chipping hammer and ultrasonic peening treatment, the welded joints were machined and hardened. Correspondingly, strength and hardness were improved. However, the heat treatment only led to a slight decrease in strength and hardness due to the static recovery of the welded joint structure. All stress relief methods effectively improved the corrosion resistance of welded joints, with the ultrasonic peening treatment giving the best performance. |
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| format | Article |
| id | doaj.art-d7fb60839b004582956281c15dc9ab4c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:04:05Z |
| publishDate | 2020-09-01 |
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| series | Materials |
| spelling | doaj.art-d7fb60839b004582956281c15dc9ab4c2023-11-20T15:03:08ZengMDPI AGMaterials1996-19442020-09-011319427210.3390/ma13194272Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless SteelXiao-qin Zha0Yi Xiong1Tian Zhou2Yong-feng Ren3Peng-hui Hei4Zhi-liang Zhai5Jukka Kömi6Marko Huttula7Wei Cao8Luoyang Ship Material Research Institute, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaLuoyang Sunrui Special Equipment CO., LTD, Luoyang 471000, ChinaLuoyang Sunrui Special Equipment CO., LTD, Luoyang 471000, ChinaMaterials and Mechanical Engineering, Center for Advanced Steels Research, University of Oulu, FIN-90014 Oulu, FinlandSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaNano and Molecular Systems Research Unit, University of Oulu, FIN-90014 Oulu, FinlandStress relief treatments were carried out separately with a pneumatic chipping hammer, ultrasonic peening treatment, and heat treatment for metal active-gas welding (MAG) welded joints of 2205 duplex stainless steel. The effects of these methods on the residual stress, microstructure, mechanical properties and corrosion resistance of welded joints were studied. Results show the stress state of the weld and the surrounding area was effectively improved by the pneumatic chipping hammer and ultrasonic peening treatment, and the residual stress field of the surface layer changed from tensile stress to compressive stress. On the contrary, low-temperature stress relieving annealing had no obvious effect on stress distribution. After the pneumatic chipping hammer and ultrasonic peening treatment, the welded joints were machined and hardened. Correspondingly, strength and hardness were improved. However, the heat treatment only led to a slight decrease in strength and hardness due to the static recovery of the welded joint structure. All stress relief methods effectively improved the corrosion resistance of welded joints, with the ultrasonic peening treatment giving the best performance.https://www.mdpi.com/1996-1944/13/19/42722205 duplex stainless steel welded jointstress relief treatmentmicrostructuremechanical propertiescorrosion resistance |
| spellingShingle | Xiao-qin Zha Yi Xiong Tian Zhou Yong-feng Ren Peng-hui Hei Zhi-liang Zhai Jukka Kömi Marko Huttula Wei Cao Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel Materials 2205 duplex stainless steel welded joint stress relief treatment microstructure mechanical properties corrosion resistance |
| title | Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel |
| title_full | Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel |
| title_fullStr | Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel |
| title_full_unstemmed | Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel |
| title_short | Impacts of Stress Relief Treatments on Microstructure, Mechanical and Corrosion Properties of Metal Active-Gas Welding Joint of 2205 Duplex Stainless Steel |
| title_sort | impacts of stress relief treatments on microstructure mechanical and corrosion properties of metal active gas welding joint of 2205 duplex stainless steel |
| topic | 2205 duplex stainless steel welded joint stress relief treatment microstructure mechanical properties corrosion resistance |
| url | https://www.mdpi.com/1996-1944/13/19/4272 |
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