Superior creep strength of a nickel-based superalloy produced by selective laser melting
Superior creep strength of a nickel-based superalloy produced by selective laser melting
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DOI:
10.1016/j.msea.2016.07.061
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发表时间:
2016-09-30
期刊:
影响因子:
6.4
通讯作者:
Goeken, M.
中科院分区:
文献类型:
--
作者:
Proebstle, M.;Neumeier, S.;Goeken, M.
The creep properties of a polycrystalline nickel-based superalloy produced via selective laser melting were investigated in this study. All heat treatment conditions of the additively manufactured material show superior creep strength compared to conventional cast and wrought material. The process leads to a microstructure with fine subgrains. In comparison to conventional wrought material no Niobium rich 8 phase is necessary to control the grain size and thus more Niobium is available for precipitation hardening and solid solution strengthening resulting in improved creep strength. (C) 2016 Elsevier B.V. All rights reserved.