Oxygenated Treatment on Saturated Vapour Oxidation Behaviors of GH2984 Alloys for 700 °C Ultra-supercritical Boilers

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Liu Jiangnan ◽  
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Byung-Kee Kim ◽  
Man-Ho Park ◽  
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2021 ◽  
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Kadir Mert Döleker ◽  
Azmi Erdogan ◽  
Tuba Yener ◽  
Abdullah Cahit Karaoglanlı ◽  
Orhan Uzun ◽  
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2006 ◽  
Vol 53 (4) ◽  
pp. 839-844 ◽  
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Shyh-Jiun Liu ◽  
Hsien-Ju Tien ◽  
Hsien-Chang Chang

2018 ◽  
Vol 47 (9) ◽  
pp. 1094-1096 ◽  
Author(s):  
Masayuki Shirai ◽  
Yusuke Yamazaki ◽  
Kazuki Takahashi ◽  
Hidetaka Nanao

2011 ◽  
Vol 695 ◽  
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Young Ho Song ◽  
Joon Sik Park ◽  
Jeong Min Kim ◽  
Seong Hoon Yi

Mo-Si-B alloys have been received an attention due to the high temperature strength and phase stability. However, the nature of poor oxidation resistance often limits the application of the alloy system. The unstable MoO3 phase is naturally produced when the alloys were exposed at low and /or high temperature in an air atmosphere. In order to resolve the poor oxidation resistance of the alloy system, several attempts have been made via surface coatings and/or component additions. In this study, the oxidation behaviors of the Ti powder thermal spray coated Mo-Si-B alloys have been investigated in order to identify the underlying mechanism for the effect of precursor Ti coatings on Mo-Si-B alloys. The oxidation tests performed at 1100 °C show that the Ti powder was tightly bonded and reacted with the surface of the substrate, and TiO2 layer was formed at the outer surface of the coated Ti layer as a result of oxidation exposure. The oxidation behaviors of pure elemental component coated Mo-Si-B alloys have been discussed in terms of microstructural observations during oxidation tests.


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