Anisotropic creep behavior of aluminized Ni-based single crystal superalloy TMS-75

Fahamsyah H. Latief, Koji Kakehi, Hideyuki Murakami

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We examined the creep behavior of aluminized Ni-based single crystal superalloy TMS-75 with {100} and {110} side-surfaces. The specimens were aluminized by pack aluminizing treatment at 1000°C for 5. h under argon flow. The creep rupture tests were performed at 900°C under a stress of 392. MPa. The stress orientation of all of the specimens was within 4° of 〈001〉. It was evident that the {100} specimens exhibited higher creep rupture lives compared to the {110} specimens, indicating that anisotropy of the secondary orientation-which is normal in the primary orientation-occurred. The anisotropic creep behavior of the aluminized specimens was induced primarily by the different arrangements of {111} 〈101〉 slip systems between the two side-surface orientations. The gradient of hardness values in the coating-to-substrate regions and depth of TCP penetration were additional degradation factors.

本文言語English
ページ(範囲)65-71
ページ数7
ジャーナルMaterials Science and Engineering A
567
DOI
出版ステータスPublished - 2013
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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