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

The pseudoelastic behavior of Fe­Ga polycrystals was examined focusing on the effects of Ga concentration, heat treatment and deformation temperature. Fe­Ga polycrystals solutionized at 800°C exhibited pseudoelasticity at room temperature based on reversible motion of 1/4h111i superpartial dislocations dragging an antiphase boundary (APB) in the D03 superlattice structure. In particular, at and above 25at%Ga, paired 1/4h111i superpartials dragging the next-nearest-neighbor APB were found to play an important role in the pseudoelasticity. The amount of strain recovery at room temperature was highest at 25at%Ga. Moreover, heat treatment strongly influenced the pseudoelastic behavior of Fe­Ga alloys. For instance, the L12 and ½-like phases precipitating at higher Ga concentrations led to a decrease in strain recovery since the precipitates suppressed the reversible motion of 1/4h111i superpartials. On the other hand, pseudoelasticity based on twinning and untwinning of 2.2 T -type pseudo-twins appeared at low temperatures, especially at ¹180°C. The energy of {211} pseudo-twins formed in the Fe­Ga alloys was so high that the twins tended to disappear during unloading resulting in the pseudoelasticity. However, the amount of strain recovery decreased if pseudoelasticities based on dislocation motion and twinning concurrently took place between ¹150 and ¹50°C. [doi:10.2320/matertrans.M2012266]

Effects of Ga Concentration, Heat Treatment and Deformation Temperature on Pseudoelasticity of Fe&ndash;Ga Polycrystals

Effects of Ga Concentration, Heat Treatment and Deformation Temperature on Pseudoelasticity of Fe–Ga Polycrystals