Influence of Growth Rate on Eutectic Spacing, Microhardness, and Ultimate Tensile Strength in the Directionally Solidified Al-Cu-Ni Eutectic Alloy
Sign Up to like & getrecommendations! Published in 2018 at "Metallurgical and Materials Transactions B"
DOI: 10.1007/s11663-018-1404-7
Abstract: In this work, the mechanical properties of the Al-Cu-Ni eutectic alloy, Al-32.5 wt pct Cu-1 wt pct Ni, were investigated in terms of the dependency on growth rates. The Al-Cu-Ni eutectic alloy was directionally solidified at a… read more here.
Keywords: directionally solidified; alloy; eutectic spacing; eutectic alloy ... See more keywords
Microstructure and microhardness of directionally solidified NiAl–W eutectic alloy
Sign Up to like & getrecommendations! Published in 2019 at "Rare Metals"
DOI: 10.1007/s12598-019-01268-5
Abstract: The microstructure and microhardness of directionally solidified NiAl–W eutectic alloys at growth rates of 2–25 μm·s−1 were investigated by a Bridgman crystal growing facility at a temperature gradient of 300 K·cm−1. In view of the competitive growth… read more here.
Keywords: directionally solidified; microhardness directionally; eutectic alloys; solidified nial ... See more keywords
Directionally solidified Al2O3-ME3Al5O12 (ME: Y, Er and Yb) eutectic coatings for thermophotovoltaic systems
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DOI: 10.1016/j.ceramint.2017.08.212
Abstract: Abstract Selective emitters for thermophotovoltaic systems consisting of directionally solidified Al 2 O 3 -ME 3 Al 5 O 12 (ME: Y, Er and Yb) eutectic coatings on Al 2 O 3 substrates were produced… read more here.
Keywords: thermophotovoltaic systems; eutectic coatings; directionally solidified; al2o3 me3al5o12 ... See more keywords
An investigation into the cracking of platinum aluminide coated directionally solidified CM247 LC high pressure nozzle guide vanes of an aero engine
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2018.07.027
Abstract: Abstract In service inspection of RT-22 platinum aluminide coated directionally solidified CM247LC high pressure turbine nozzle guide vanes of an aero engine which underwent 134 runs as an assembly set revealed cracking in 23 out… read more here.
Keywords: directionally solidified; aluminide coated; engine; coated directionally ... See more keywords
Effect of Ti addition on microstructure and crystalline orientations of directionally solidified Nb–Si based alloys
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DOI: 10.1016/j.intermet.2020.106798
Abstract: Abstract Multi-element Nb–Si based alloys with nominal compositions of Nb-xTi-15Si–5Cr-1.5Hf-1.5Zr (x = 0, 10, 20 and 25 at. %) were simultaneously directionally solidified at 2050 °C. When the Ti addition contents are 0 10 at. %, the microstructure is composed… read more here.
Keywords: nbss 5si3; directionally solidified; addition; primary 5si3 ... See more keywords
Investigation on freckles in directionally solidified CMSX-4 superalloy specimens with abrupt cross section variation
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2016.09.007
Abstract: Abstract The freckle formation was investigated in directionally solidified CMSX-4 superalloy specimen with abrupt cross section variation to better understand that in the real hollow blade. Freckles were usually observed on the specimen surface within… read more here.
Keywords: directionally solidified; variation; cross; solidified cmsx ... See more keywords
Microstructure, tensile properties and wear resistance correlations on directionally solidified Al-Sn-(Cu; Si) alloys
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2016.11.399
Abstract: Abstract The development of alloys suitable for engine bearings demands not only reducing the amount of wear as well as increasing the load carrying capability due to both engines stop/start systems and sudden rise in… read more here.
Keywords: directionally solidified; wear resistance; solidified alloys; tensile properties ... See more keywords
Changes in the microstructure and mechanical properties of Al2O3/YSZ directionally solidified eutectic ceramics during long-time heat treatment
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DOI: 10.1016/j.jeurceramsoc.2021.09.026
Abstract: Abstract Al2O3/YSZ directionally solidified eutectic ceramics (DSECs) were prepared using the induction heating zone melting (IHZM) method. The microstructures of the DSECs formed with various crucible pulling rates (2.5–300 mm/h) changed from the discontinuous lamellar… read more here.
Keywords: heat treatment; directionally solidified; ysz directionally; al2o3 ysz ... See more keywords
Effects of Nb/Ti additions and heat treatment on the microstructure evolution and hardness of as-cast and directionally solidified NiAl–Cr(Mo) alloy
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DOI: 10.1016/j.jmrt.2020.12.089
Abstract: Abstract The effects of the addition of Nb and Ti and heat treatment on the microstructure evolution and hardness of the as-cast and directionally solidified NiAl–Cr(Mo) alloy were studied. Nb mainly solubilizes in the Cr(Mo)… read more here.
Keywords: heat treatment; directionally solidified; solidified nial; hardness ... See more keywords
Crystallographic features of the Al3Nb, Nb2Al and Nb(Ni1−XAlX)2 phases in a directionally solidified ternary eutectic microstructure
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DOI: 10.1016/j.matchar.2018.10.030
Abstract: Abstract Under directional growth, the eutectic transformation L ⇄ Al3Nb + Nb2Al + Nb(Ni1−xAlx)2 resulted in a very organized three phase microstructure. While many features of this eutectic have already been explored, crystallographic details of its phases are still missing. This… read more here.
Keywords: xalx; ni1 xalx; crystallographic features; directionally solidified ... See more keywords
Substructural evolution in a directionally solidified nickel-base superalloy during relaxation fatigue tests at 850 °C
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DOI: 10.1016/j.matlet.2018.07.124
Abstract: Abstract This paper reports new dislocation configurations responsible for cyclic hardening/softening behaviour of a directionally solidified nickel base superalloy after relaxation fatigue tests at 850 °C with hold durations of 1 and 5 min. Dislocation interactions in… read more here.
Keywords: relaxation fatigue; nickel base; directionally solidified; superalloy relaxation ... See more keywords