Zobrazeno 1 - 10
of 524
pro vyhledávání: '"repair welding"'
Autor:
Qimeng Liu, Jingyu Chang, Yuanzhi Wang, Dong Xia, Jianfei Zhang, Xinlong Guan, Yuwei Zhou, Bing Yang
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 37, Iss 1, Pp 1-18 (2024)
Abstract Repair welding technology is widely used in the manufacturing and maintenance of rail transit equipment to repair welding defects. However, repair welding induces modifications in joint performance, and it is necessary to study the microstru
Externí odkaz:
https://doaj.org/article/06bd3e5b06884c2a9dd60ba6ff3d239b
Publikováno v:
Tribology Online, Vol 19, Iss 4, Pp 266-276 (2024)
Large-diameter slewing bearings are capable of supporting high loads and moments. They find typical usage in applications requiring extensive rotational movements, such as cranes, excavators, and wind turbines. Engineered to endure significant loads,
Externí odkaz:
https://doaj.org/article/59ec2f705d5647deb7feb4a49cbce736
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 110-122 (2024)
This study assessed the liquation cracking temperature range (LCTR) for 247LC superalloy repair welds subjected to long-term and high-temperature exposure. To achieve this, the exposed specimens underwent simulations at 1273 K for 500, 1000, 3000, an
Externí odkaz:
https://doaj.org/article/d898ebcc155d48e4ae6df64d59452ae7
Autor:
D. Kollár
Publikováno v:
Results in Engineering, Vol 20, Iss , Pp 101535- (2023)
Related to weld quality, level of imperfections is limited which can result in the need of grinding and repair welding. It results in material removal and additional heat cycles causing superimposed distortions and altering the distribution of residu
Externí odkaz:
https://doaj.org/article/155719f874d4441c8e27409bb4713aff
Publikováno v:
Cailiao gongcheng, Vol 51, Iss 3, Pp 156-165 (2023)
Aiming at the problem that surface cracks occur in the service of 15Cr2Mo1 heat resistant steel welds, NiCrFe alloy which was similar to the usage scenarios of this steel was employed to repair welds with different groove depths simulating crack dept
Externí odkaz:
https://doaj.org/article/3ea4a5ce76d44dbcb613f766b07e9e76
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 4173-4189 (2023)
In this study, the influence of repair welding on microstructure evolution, mechanical properties, and corrosion resistance of SUS304-Q345B dissimilar metal active gas arc (MAG) welding plates was investigated via optical microscopy (OM), scanning el
Externí odkaz:
https://doaj.org/article/ad322bf0735f4ec6a35a88bbc9b9a25b
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 4828-4842 (2023)
OM, SEM, EBSD and a series of mechanical property tests were used to study the influence of different welding lengths on the original welded joints. The results show that the filler welding area is austenitic structure due to the introduction of nick
Externí odkaz:
https://doaj.org/article/8cf0b9e3c2f946a7abb8b84619f43b28
Publikováno v:
Metalurgija, Vol 62, Iss 3-4, Pp 371-374 (2023)
The purpose of this research is to determine effect of the repair welding process on the microstructure and hardness of the T-joint S355J2+N steel. This process was carried out by moving the welding position 10 mm from the initial position using Gas
Externí odkaz:
https://doaj.org/article/4572c18c4a3341ccb9f3cfb7a1285986
Autor:
Magdaline N. Muigai, Fredrick M. Mwema, Esther T. Akinlabi, Tien-Chien Jen, Olawale S. Fatoba, Tshenolo P. Leso, Japheth O. Obiko, Percy Mphasha
Publikováno v:
Tribology in Industry, Vol 44, Iss 3, Pp 434-448 (2022)
Structural steel components tend to wear when exposed to corrosive and cyclic loading environments. These components can be repaired by welding on failure. This study studied the weld parameters and weld quality (porosity, depth of penetration, and c
Externí odkaz:
https://doaj.org/article/7cb4d469d5f84cb4956b6cdae77ffbf0
Autor:
Karsten Wandtke, Amadeus Becker, Dirk Schroepfer, Arne Kromm, Thomas Kannengiesser, Ronny Scharf-Wildenhain, André Haelsig, Jonas Hensel
Publikováno v:
Metals, Vol 14, Iss 1, p 82 (2024)
High-strength steels offer potential for weight optimization due to reduced wall thicknesses in modern constructions. Additive manufacturing processes such as Wire Arc Additive Manufacturing (WAAM) enable the resource-efficient production of structur
Externí odkaz:
https://doaj.org/article/2e3cb0ec03094dad8840db5aa9a33ecb