Improving cyclic oxidation resistance of Ni3Al-based single crystal superalloy with low-diffusion platinum-modified aluminide coating

2020 ◽  
Vol 54 ◽  
pp. 132-143 ◽  
Author(s):  
H. Liu ◽  
M.M. Xu ◽  
S. Li ◽  
Z.B. Bao ◽  
S.L. Zhu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Oxidation Resistance ◽  
Cyclic Oxidation ◽  
Aluminide Coating ◽  
Single Crystal Superalloy

Effect of Hf Content on Oxidation Resistance of Single Crystal Superalloy at 1000°C

2014 ◽  
Vol 915-916 ◽  
pp. 562-566 ◽  
Author(s):  
Z.X. Shi ◽  
Shi Zhong Liu ◽  
M. Han ◽  
J.R. Li
Keyword(s):  
Grain Size ◽  
Single Crystal ◽  
Oxide Scale ◽  
Oxide Layer ◽  
Oxidation Resistance ◽  
Isothermal Oxidation ◽  
Single Crystal Superalloy ◽  
Ambient Atmosphere ◽  
Directionally Solidified ◽  
Better Than

The specimens of single crystal superalloy DD6 with 0.10% Hf and 0.47% Hf were prepared in the directionally solidified furnace. The effect of Hf content on the isothermal oxidation resistance of the second generation single crystal superalloy DD6 was studied at 1000°Cin ambient atmosphere. Morphology of oxides was examined by SEM, and their composition was analyzed by XRD and EDS. The experimental results show that the oxidation resistance of DD6 alloy with 0.47% Hf is better than that of the alloy with 0.10% Hf. The alloy with different Hf content all obeys parabolic rate law during oxidation for 100h at 1000°C. The increase of Hf content can promote the Al2O3 formation and decreases the proportion of NiO. The oxide grain size and the thickness of the oxide layer all reduce with increasing of Hf content. The oxide scale of the alloy with different Hf content is made up of an outer NiO layer with a small amount of Co3O4, inner Al2O3 and Cr2O3 layer with a small amount of TaO2.

Thermal cyclic oxidation and interdiffusion of NiCoCrAlYHf coating on a Ni-based single crystal superalloy

2016 ◽  
Vol 657 ◽  
pp. 616-625 ◽  
Author(s):  
Jinyan Zhong ◽  
Jianhua Liu ◽  
Xin Zhou ◽  
Songmei Li ◽  
Mei Yu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Single Crystal Superalloy

Effects of Ce and Dy on the Cyclic Oxidation Behavior of a Ni-Based Single Crystal Superalloy

2018 ◽  
pp. 803-814
Author(s):  
Jieying Bai ◽  
Jianhao Wu ◽  
Shuhua Xu ◽  
Yanling Pei ◽  
Lu Qin ◽  
...  
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Single Crystal Superalloy

Oxidation Resistance Improvement of Ni-Base Single-Crystal Superalloy Melted in a CaO Crucible

2019 ◽  
Vol 50 (8) ◽  
pp. 3903-3911 ◽  
Author(s):  
Takuya Sugiyama ◽  
Satoshi Utada ◽  
Tadaharu Yokokawa ◽  
Makoto Osawa ◽  
Kyoko Kawagishi ◽  
...  
Keyword(s):  
Single Crystal ◽  
Oxidation Resistance ◽  
Single Crystal Superalloy ◽  
Resistance Improvement

The role of Re in improving the oxidation-resistance of a Re modified PtAl coating on Mo-rich single crystal superalloy

2020 ◽  
Vol 58 ◽  
pp. 63-72 ◽  
Author(s):  
Jingchen Li ◽  
Liangliang Wei ◽  
Jian He ◽  
Hao Chen ◽  
Hongbo Guo
Keyword(s):  
Single Crystal ◽  
Oxidation Resistance ◽  
Single Crystal Superalloy

Low inter-diffusivity γ'-base bondcoats for single crystal superalloy René N5. Ⅱ: Cyclic oxidation behavior at 1100 ºC

2019 ◽  
Vol 159 ◽  
pp. 108127 ◽  
Author(s):  
Hongrui Yao ◽  
Lanlan Yang ◽  
Zebin Bao ◽  
Shenglong Zhu ◽  
Fuhui Wang
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Single Crystal Superalloy

Cyclic oxidation and interdiffusion behavior of Pt modified NiAlHfCrSi coatings on single crystal superalloy containing Mo

2014 ◽  
Vol 259 ◽  
pp. 426-433 ◽  
Author(s):  
Wenyan Qi ◽  
Hui Peng ◽  
Jian He ◽  
Shusuo Li ◽  
Shengkai Gong ◽  
...  
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Single Crystal Superalloy

Effect of Ca on the Y Content and Cyclic Oxidation Behavior of Ni-Based Single-Crystal Superalloy

2017 ◽  
Vol 12 (3) ◽  
pp. 607-613 ◽  
Author(s):  
Genfeng Shang ◽  
Pengzhe Gao ◽  
Fuxin Luo ◽  
Jihui Yuan ◽  
Jinfa Liao ◽  
...  
Keyword(s):  
Single Crystal ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Single Crystal Superalloy
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