Zobrazeno 1 - 10
of 3 461
pro vyhledávání: '"single crystal superalloy"'
Autor:
Jingjing Wu, Chaowei Zhang, Liang Wang, Yanhong Yang, Lina Yao, Xinguang Wang, Jie Meng, Yizhou Zhou, Xiaofeng Sun
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 59-66 (2024)
The solution-treated second-generation single crystal (SX) superalloys underwent hot isostatic pressing (HIP) at 1316 °C and 105 MPa for varying durations. This study investigates the effect of HIP on micropores and stress-rupture behavior under con
Externí odkaz:
https://doaj.org/article/6413dd834209450b9efedf448422ef31
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 37, Iss 1, Pp 1-13 (2024)
Abstract The effect of yttrium (Y) addition on the oxidation behavior of a Ni-based directionally solidified single-crystal superalloy is investigated in this study. Isothermal oxidation tests for samples with different levels of Y addition are condu
Externí odkaz:
https://doaj.org/article/a1b62dee8bc14048845ed5d1ad892903
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 3708-3716 (2024)
The fatigue crack initiation process accounts for the main portion of the high-cycle fatigue (HCF) life. Although coated superalloys are well-known to be prone to surface microcracks, the influence of the coating-substrate microstructure on the damag
Externí odkaz:
https://doaj.org/article/12c9003b7c724dffb61f801fbcc689dd
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2386-2394 (2024)
Turbine blades are mainly subjected to thermal stress and gradient centrifugal stress in operational conditions. The effects of centrifugal stress on the microstructural degradation of single crystal superalloys under a multiaxial stress state remain
Externí odkaz:
https://doaj.org/article/90b097f0c8414ce3ba67ad0b43211465
Publikováno v:
Materials Research Letters, Vol 12, Iss 9, Pp 626-634 (2024)
The creep mechanism of a Co-based single-crystal (SX) superalloy at 760°C/800 MPa (∼90% yield strength) was revealed and differed from those of Re-containing Ni-based SX superalloys. Experimental alloy displays superior creep resistance in the ear
Externí odkaz:
https://doaj.org/article/8654dfee6a3a40e29511a72f677f2137
Autor:
Yiran Cui, Ming Sun, Li Wang, Hao Fan, Junbo Zhao, Haibo Long, Shengcheng Mao, Ze Zhang, Xiaodong Han
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 3213-3219 (2024)
This work investigates the effect of Ru on the precipitation of the topologically close-packed (TCP) phase from the γ-γʹ microstructural degradation analysis. The addition of Ru is found to delay the precipitation time of the TCP phase from 100 h
Externí odkaz:
https://doaj.org/article/c5b03211b31e40d1bf92619629fa4677
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 5523-5528 (2024)
Fast homogenization without incipient melting is the key to designing solution heat treatment (SHT) process for single crystal superalloys. In this paper, a multicomponent phase-field model coupled with solidus temperature is developed for dynamicall
Externí odkaz:
https://doaj.org/article/93ed6c638a724d7393b4c6ec79afd0ad
Autor:
Qi Wang, Haigen Zhao, Bin Hu, Yong Shang, Yi Ru, Heng Zhang, Weiwei Qu, Yanling Pei, Shusuo Li, Shengkai Gong
Publikováno v:
Materials & Design, Vol 244, Iss , Pp 113200- (2024)
The static recrystallization (SRX) of the designed high γ′-fraction Ni-based single crystal superalloy (SX) AlloyX was investigated. The three-dimensional SRX threshold of AlloyX involves plastic strain – deformation temperature – heat treatme
Externí odkaz:
https://doaj.org/article/f614e78b372d406e9195474c6b81768a
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 4406-4417 (2024)
Laser directed energy deposition process shows a tremendous potential to additively repair and manufacture single-crystal components in a near-net shape. For the specific non-vertical structure such as the tilted and torsional sidewalls of single-cry
Externí odkaz:
https://doaj.org/article/0500912608484becaae98fd3ae03cc8f
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 3522-3531 (2024)
Creep rupture tests were conducted on 67 thin-walled DD6 specimens, with thicknesses ranging from 0.35 mm to 1.50 mm, at temperatures of 760 °C, 850 °C, 980 °C, and 1100 °C, revealing a log-linear relationship between rupture lifetimes and specim
Externí odkaz:
https://doaj.org/article/e2522df8f3754cfaaea0202b83f64b04