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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

New nickel-based superalloys for industrial turbines with high Cr content were designed with the aid of the d-electrons concept. This concept has been developed on the basis of the molecular orbital calculations of the electronic structures of Ni alloys. Two electronic parameters are important in this concept. One is the bond order between an alloying element and nickel atoms, Bo, and the other is the d-orbital energy level of alloying element, Md. Employing these parameters, singlecrystal(SC) superalloys were designed with the compositions : Ni-(9.5-12.O)Al-(16.5-18.O)Cr(0.6-2.4)Ti-(0.3- l.QTa-(0-OS)Nb-(0.9-1.6)W-( 1.2-l .8 )Mo-(O-0.25)Re [mol%]. A similar method was also employed for the design of directionally solidified(DS) alloys. Namely, alloy compositions without any grainboundary strengthening elements were firstly designed and then a small amount of Hf was simply added into them to strengthen the grain-boundaries. The creep properties and hot corrosion resistance were evaluated experimentally for these SC and DS alloys. As a result, the SC alloys were found to be superior in the creep rupture life to a reference alloy, SC-16, while keeping hot corrosion resistance as high as SC-16 and IN738LC. The DS alloys also exhibited better creep properties than several alloys so far developed.

Hot Corrosion Resistant and High Strength Nickel-Based Single Crystal and Directionally-Solidified Superalloys Developed by the d-Electrons Concept