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

1111 isothermal aging study was carried out on alloy 718 DA disk for up to 1000 hours at the temperature of 650°C. There was almost no changing in the size and main amount of itrengthening phase u " , and the mechanical properties are also unchanged when allo) 71 8 DA disk was exposed for 500 hours at the temperature of 650°C. When the disk mas exposed to 1000 hours at the temperature of 650°C. although tensile properties remained stable, but h ' size became increasing, hr ' I amount decreasing and stress rupture, creep and low c) cle fatigue properties had a evident changing. The stress rupture time only had about a half of the rupture time of DA718 disk. The remained plastic strain had a larger increase in the creep tests and the abllitj of resistance against plastic strain weakened at 650°C low cqcle fatigue experiment when the DA disk was exposed to 1000 hours at the temperature of 650°C. The change of strengthening phase Y " in size and amount will cause the variation in some mechanical properties on alloy 71 8 DA disk. Superallo! s 71 8. 625 . 706 and Various Dcri\.ativcs Eclitcti h! E..A Losin TAIS ( l 'he Minerals. l fc ta l s & hlntcrials Socisty). 2 W l

The Effects of 650�C Long Exposure on Alloy 718 DA Disk