English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In order to assess an applicability of Alloy 718 in the corrosive environment at the elevated temperature more than customarily used, both the creep and the fatigue performances were investigated of it with different grain sizes at 1073K in the NazS04-NaCl molten salt environment, together with an establishment of the corrosion map for the Vz05-NazS04-NaCl molten salt system. Alloy 718 was found to have much better resistance against the NazS04-induced hot corrosion without an occurrence of an intergranular attack as compared with the other Ni-rich superalloys such as Alloy 751, although the former was subjected more heavily to the Vz05induced vanadium pentoxide attack. Creep rupture strength degradation due to hot corrosion was most mitigated in almost all the superalloys, mainly by virtue of an effective suppression of aggressive intergranular penetration of the low melting Ni sulfide liquids. Furthermore, a grain coarsening was found to be effective for improving the creep rupture properties even in hot corrosive environment without increasing a corrosion sensitivity. A corrosion-induced fatigue strength degradation of Alloy 718 was more significant than the case of creep, but its degree was rather mitigated than Alloy 751. A corrosion sensitivity of the fatigue strength was also found to be nearly independent of a grain size. Superalloys 718, 625 and Various Derivatives Edited by Edward A. Lmia The Minerals, Metals & Materials Society, 1991

Mechanical Performance of Wrought Alloy 718 with Different Grain Sizes in Hot Corrosive Environment