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| THE EFFECT OF η-PHASE IN AN IRONNICKEL BASE SUPERALLOY |
| Ge Yunlong;Zhang Yongchang;Hou Cuiping Institute of Metal Research; Academia Sinica |
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Cite this article:
Ge Yunlong;Zhang Yongchang;Hou Cuiping Institute of Metal Research; Academia Sinica. THE EFFECT OF η-PHASE IN AN IRONNICKEL BASE SUPERALLOY. Acta Metall Sin, 1979, 15(2): 197-304.
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Abstract The γ'-η transformation and the formation of the η-phase itself on the me-chanical properties and hot-workability of an iron-nickel base superalloy (Fe-42Ni-13Cr-6Mo-2.8Ti-0.3Al) has been studied. The formation of η-phase was promotedby increment of titanium content as well as by hot-working energy, and was re-tarded by the addition of aluminium, molybdenum and minute boron. when suchan alloy did contain certain amount of η-phase, its rupture strength and/or stress-rup-ture life were reduced although its ductility and hot-workability were increased.
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Received: 18 February 1979
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