The plastic strengthening effect after long-term endurance and fatigue verification of aero-engine turbine blade single crystal superalloy
Sign Up to like & getrecommendations! Published in 2021 at "Mechanics of Time-dependent Materials"
DOI: 10.1007/s11043-021-09514-z
Abstract: The elastoplastic behaviors of a nickel-based single crystal superalloy at 760 °C, 927 °C and 1100 °C were studied, respectively, after 815 °C/250 MPa lasting for 2000 h, 927 °C/205 MPa lasting for 2000 h and 1100 °C/30 MPa lasting for 1000 h. After 815 °C/250 MPa lasting for… read more here.
Keywords: fatigue verification; lasting 2000; single crystal; crystal superalloy ... See more keywords
Microstructural Instability of an Experimental Nickel-Based Single-Crystal Superalloy
Sign Up to like & getrecommendations! Published in 2020 at "Acta Metallurgica Sinica (English Letters)"
DOI: 10.1007/s40195-020-01057-5
Abstract: Microstructural instability with the precipitation of topologically close-packed (TCP) phases of an experimental nickel-based single-crystal superalloy has been investigated. A significant amount of σ phases are distinguished in the interdendritic region of the as-cast samples… read more here.
Keywords: microstructural instability; nickel based; single crystal; experimental nickel ... See more keywords
Brazing of Ni-based single crystal superalloy with high carbon content γ layer
Sign Up to like & getrecommendations! Published in 2020 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2020.145936
Abstract: Abstract The recast layer is an undesirable surface residue after the electric discharge machining of materials, which would affect the following brazing process and cause microstructure and property degradation. In this study, the effects of… read more here.
Keywords: carbon; layer; single crystal; crystal superalloy ... See more keywords
Low inter-diffusivity γ'-base bondcoats for single crystal superalloy René N5. I: Primary study of microstructures and oxidation behaviors at 1100 ºC
Sign Up to like & getrecommendations! Published in 2019 at "Corrosion Science"
DOI: 10.1016/j.corsci.2018.11.021
Abstract: Abstract Three γ'-base bondcoats, which are referred to as Al-19, Al-20 and Al-25 following their atomic percent of Al, respectively, were prepared on single crystal superalloy Rene N5 by magnetron sputtering. All the coatings exhibited… read more here.
Keywords: low inter; base bondcoats; single crystal; crystal superalloy ... See more keywords
Damage mechanisms during very high cycle fatigue of a coated and grit-blasted Ni-based single-crystal superalloy
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Fatigue"
DOI: 10.1016/j.ijfatigue.2020.105962
Abstract: Abstract The very high cycle fatigue properties of the Ni-based single-crystal superalloy CMSX-4 coated with an MCrAlY type coating and grit-blasted were studied at 1000 °C, 20 kHz and R = -1. A recrystallized layer thicker than the size… read more here.
Keywords: fatigue; cycle fatigue; high cycle; single crystal ... See more keywords
Precipitation behavior and chemical composition of secondary γ‛ precipitates in a Re-containing Ni-based single crystal superalloy
Sign Up to like & getrecommendations! Published in 2020 at "Intermetallics"
DOI: 10.1016/j.intermet.2020.106725
Abstract: Abstract Three-dimensional atom-probe tomography and scanning electron microscopy were utilized for an in-depth examination of the formation of secondary γ′ precipitates and the composition difference between secondary γ′ precipitates and primary γ′ precipitates in a… read more here.
Keywords: secondary precipitates; single crystal; precipitates containing; containing based ... See more keywords
Characterization of topologically close-packed phases and precipitation behavior of P phase in a Ni-based single crystal superalloy
Sign Up to like & getrecommendations! Published in 2020 at "Intermetallics"
DOI: 10.1016/j.intermet.2020.106887
Abstract: Abstract Scanning electron microscopes (SEM) and transmission electron microscopes (TEM) were employed to investigate the topologically close-packed (TCP) phases in an experimental nickel base single crystal superalloy. Orientation relationships between P phase and matrix were… read more here.
Keywords: phase; topologically close; single crystal; close packed ... See more keywords
Microstructure and mechanical properties of a new nickel-based single crystal superalloy
Sign Up to like & getrecommendations! Published in 2020 at "Journal of materials research and technology"
DOI: 10.1016/j.jmrt.2020.08.032
Abstract: Abstract To obtain higher comprehensive mechanical properties while avoid the adverse effects of Re element on the microstructure and economy of the alloy, a Re-free nickel-based single crystal superalloy is developed based on the Rene… read more here.
Keywords: fracture; single crystal; mechanical properties; crystal superalloy ... See more keywords
In-situ X-ray tomography investigation of pore damage effects during a tensile test of a Ni-based single crystal superalloy
Sign Up to like & getrecommendations! Published in 2021 at "Materials Characterization"
DOI: 10.1016/j.matchar.2021.111180
Abstract: Abstract High-resolution X-ray computed tomography was used to perform in-situ observation of the microporosity evolution during a tensile test of a DD5 nickel-based single crystal superalloy. Every pore with the equivalent diameter over 7.53 μm has… read more here.
Keywords: single crystal; tomography; crystal superalloy; ray ... See more keywords
Influence of withdrawal rate on the porosity in a third-generation Ni-based single crystal superalloy
Sign Up to like & getrecommendations! Published in 2017 at "Progress in Natural Science: Materials International"
DOI: 10.1016/j.pnsc.2017.02.008
Abstract: Abstract The influence of withdrawal rate on the porosity in a third-generation Ni-based single crystal superalloy was investigated by a quantitative evaluation method. The results showed that the withdrawal rate obviously effected on the average… read more here.
Keywords: porosity; single crystal; crystal superalloy; based single ... See more keywords
Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature
Sign Up to like & getrecommendations! Published in 2019 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2019.04.001
Abstract: Abstract Interfacial grooving induced by dislocation stress takes place at γ/γ′ interfaces during creep and aging of a third-generation nickel-based single crystal superalloy at 1120 °C. At the tip of grooves, γ′ phase is directly measured… read more here.
Keywords: single crystal; crystal superalloy; interfacial grooves; based single ... See more keywords