Zobrazeno 1 - 10
of 2 771
pro vyhledávání: '"ni based superalloy"'
Autor:
Abhishek Sharma, Takuya Miura, Yoshiaki Morisada, Kohsaku Ushioda, Sukhdeep Singh, Hidetoshi Fujii
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract In the present investigation, friction stir welding (FSW) of a gamma prime (γ′) strengthened Haynes 282 nickel-base superalloy by using a novel hemispherical tool is documented. A joint efficiency of ~ 96% was achieved in the as-welded co
Externí odkaz:
https://doaj.org/article/a99a779251d4486b873fd026586a91f1
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 3155-3162 (2024)
We investigated the prevention of hot cracking in a non-weldable Ni-based superalloy by utilizing a passivation layer formed through laser-based directed energy deposition. The addition of Hf to the Ni-based superalloy facilitated the formation of a
Externí odkaz:
https://doaj.org/article/c22a3cfd585444c48443beda85871e4a
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 652-666 (2024)
The additive manufacturing of directionally solidified Ni-based superalloys remains a significant challenge due to the formation of stray equiaxed grains and their high susceptibility to cracking, particularly for high-volume γ´-type Ni-based supe
Externí odkaz:
https://doaj.org/article/dfca67cc625f405a96803376f6e07dfd
Autor:
Behnam Ahmadikia, Dalton Shadle, Jean-Charles Stinville, Kelly E. Nygren, M. Arul Kumar, Tresa M. Pollock, Matthew P. Miller, Irene J. Beyerlein
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 168-179 (2024)
In this work, we study the relationship between slip localizations and local orientation gradients in a polycrystalline material. We employ a 3D spatially resolved crystal plasticity-based micromechanics technique that includes explicit intragranular
Externí odkaz:
https://doaj.org/article/35069ee652b2471cb852f40614a03bd3
Autor:
Kota Sawada, Yasushi Taniuchi, Kaoru Sekido, Takehiro Nojima, Tomotaka Hatakeyama, Kazuhiro Kimura
Publikováno v:
Science and Technology of Advanced Materials: Methods, Vol 4, Iss 1 (2024)
Creep data of Ni-based 19Cr-18Fe-3Mo-5Nb-Ti-Al superalloy (JIS NCF718-B) were obtained at 550°C to 750°C under 100MPa to 1000MPa and analyzed to determine the 100,000 h creep rupture strength. The tensile properties were also evaluated at room temp
Externí odkaz:
https://doaj.org/article/b7bb7c9d35324840b81b83f2f44c5dc3
Publikováno v:
Science and Technology of Advanced Materials, Vol 25, Iss 1 (2024)
Wire-feed additive manufacturing (WFAM) produces superalloys with complex thermal cycles and unique microstructures, often requiring optimized heat treatments. To address this challenge, we present a hybrid approach that combines high-throughput expe
Externí odkaz:
https://doaj.org/article/921a284f4d4d486597b0abcf07eeafcc
Publikováno v:
Teshugang, Vol 45, Iss 4, Pp 55-60 (2024)
To study the vacuum arc remelting process and improve the homogenization and cleanliness level of large-sized superalloy ingot， numerical simulation and industrial experiment were carried out to investigate the evolution of molten pool， solidific
Externí odkaz:
https://doaj.org/article/1d925649d7c14da68019f8c3b33c54e4
Autor:
Dong Wan Lee, Jin Woo Kim, Su Gwan Lee, Dhin Van Cong, Jin Chun Kim, Hwi Jun Kim, Joong Gyeong Lim, Tae Sik Yoon
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 2, Pp 467-470 (2024)
Oxide dispersion-strengthened (ODS) superalloys are usually manufactured by a hot isostatic pressing after mechanical alloying (MA-HIP). However, this process cannot produce complex-shaped parts. Here, we used an additive manufacturing product (powde
Externí odkaz:
https://doaj.org/article/0893ca9cc5914991a7c39d2f27eb2c29
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 2, Pp 761-773 (2024)
Vacuum furnace brazing is one of the most commonly used joining processes in the aerospace industry, utilized in the manufacturing of the complex components of turbine jet engines, working in both their cold and hot sections. The modern aerospace ind
Externí odkaz:
https://doaj.org/article/9e2b72f5b3de4c799395651321f0026b
Autor:
Jie Wang, Hailiang Huang, Dan Xin, Jichong Hu, Hua Zhang, Jingjing Ruan, Xin Zhou, Shangzhou Zhang, Liang Jiang
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 1950-1961 (2024)
Isothermal heat treatment experiments were used to studied the dissolution behavior and kinetics of the γ′ precipitates within the hot-extruded novel powder metallurgy Ni-based superalloy A1. The characteristics of the γ′ precipitates were accu
Externí odkaz:
https://doaj.org/article/67617daa3a164a2f9651cb42d3eeaf17