Oxidation Behavior of Nickel-Base Single-Crystal Superalloy with Rhenium-Base Diffusion Barrier Coating System at 1,423 K in Air

2007 ◽  
Vol 68 (5-6) ◽  
pp. 343-363 ◽  
Author(s):  
Toshio Narita ◽  
Fengqun Lang ◽  
Kemas Zaini Thosin ◽  
Takayuki Yoshioka ◽  
Takeshi Izumi ◽  
...  
Keyword(s):  
Single Crystal ◽  
Diffusion Barrier ◽  
Oxidation Behavior ◽  
Single Crystal Superalloy ◽  
Coating System ◽  
Barrier Coating ◽  
Nickel Base

Formation of a Rhenium-base Diffusion-barrier-coating System on Ni-base Single Crystal Superalloy and its Stability at 1,423 K

2007 ◽  
Vol 68 (5-6) ◽  
pp. 313-329 ◽  
Author(s):  
Daisuke Sumoyama ◽  
Kemas Zaini Thosin ◽  
Takumi Nishimoto ◽  
Takayuki Yoshioka ◽  
Takeshi Izumi ◽  
...  
Keyword(s):  
Single Crystal ◽  
Diffusion Barrier ◽  
Single Crystal Superalloy ◽  
Coating System ◽  
Barrier Coating

The Effect of Tensile Stress on Oxidation Behavior of Nickel-Base Single Crystal Superalloy

2021 ◽  
pp. 109737
Author(s):  
Hai-Qing Pei ◽  
Meng Li ◽  
Ping Wang ◽  
Xiao-Hu Yao ◽  
Zhi-Xun Wen ◽  
...  
Keyword(s):  
Tensile Stress ◽  
Single Crystal ◽  
Oxidation Behavior ◽  
Single Crystal Superalloy ◽  
Nickel Base

Formation of Pt-Modified γ’-Ni3Al and Re-Based σ-Alloy Coating System and Cyclic Oxidation Behavior of Coated Superalloy

2008 ◽  
Vol 595-598 ◽  
pp. 135-141 ◽  
Author(s):  
Toshio Narita ◽  
Stewart Ford ◽  
Takayuki Yoshioka ◽  
Takumi Nishimoto ◽  
Takeshi Izumi ◽  
...  
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Parabolic Rate Constant ◽  
Alloy Coating ◽  
Coating System ◽  
Barrier Coating ◽  
Coated Alloy ◽  
Α Al2o3 ◽  
Slow Growing

A duplex layer, outer Pt-modified γ’-Ni3Al + γ-Ni and inner multi-barrier σ- Re(Cr,Ni,W), coating system was formed on a Ni-based single crystal 4th generation superalloy. Oxidation behavior of the coated alloy was investigated under thermo-cycling conditions, and analyzed by EPMA and XRD. During cyclic oxidation 1hr at 1100°C and 20 min at room temperature, a slow growing α-Al2O3 formed for up to 400 cycles and its spallation was rare. The parabolic rate constant of mass change was 6.3x10-16 kg2m-4s-1. The Pt-modified γ’-Ni3Al + γ-Ni contained 19Al, 12Pt, 4Cr, and 3Co in at%, and their concentration profiles were almost flat across the outer layer. The multi-barrier, σ-Re(Cr,Ni,W) contained 40Re, 23Cr, 17Ni, 7Al, 4W, 3.5Mo, and 3Co in at%. Furthermore, the γ’-Ni3Al containing Pt was newly formed between the multibarrier and bulk alloy substrate. It was concluded that the σ-Re(Cr,Ni,W) is compatible with the Ptmodified γ’-Ni3Al in the multi-diffusion barrier coating on Ni-based single crystal, 4th generation superalloy at high temperatures.

Formation and Oxidation Behavior of a Diffusion-Barrier-Coating System on a Ni–Mo base Alloy at 1,373 K in Air

2007 ◽  
Vol 68 (5-6) ◽  
pp. 331-342 ◽  
Author(s):  
Yuichi Katsumata ◽  
Takayuki Yoshioka ◽  
Kemas Zaini Thosin ◽  
Takumi Nishimoto ◽  
Takeshi Izumi ◽  
...  
Keyword(s):  
Diffusion Barrier ◽  
Oxidation Behavior ◽  
Base Alloy ◽  
Coating System ◽  
Barrier Coating

The Effect of an Applied External Tensile Stress on the Oxidation Behavior of a Nickel-Base Alloy with a Re-base Diffusion-barrier-coating

2007 ◽  
Vol 68 (5-6) ◽  
pp. 295-311 ◽  
Author(s):  
Mikihiro Sakata ◽  
Shigenari Hayashi ◽  
Takumi Nishimoto ◽  
Takayuki Yoshioka ◽  
Toshio Narita
Keyword(s):  
Tensile Stress ◽  
Diffusion Barrier ◽  
Oxidation Behavior ◽  
Base Alloy ◽  
Nickel Base Alloy ◽  
Barrier Coating ◽  
Nickel Base

Formation and Oxidation Behavior of Diffusion-Barrier-Coating System on γ-TiAl

2019 ◽  
Vol 33 (30) ◽  
pp. 17-22 ◽  
Author(s):  
Zbigniew Żurek ◽  
Adam Stawiarski ◽  
Artur Jaroń ◽  
Aleksander Gil
Keyword(s):  
Diffusion Barrier ◽  
Oxidation Behavior ◽  
Coating System ◽  
Barrier Coating
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