Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings
Li Wensheng; Yang Lexin; An Guosheng; Cheng Bo; Feng Li; Zhang Yi
2019-11
发表期刊RARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
卷号48期号:11页码:3527-3534
摘要

In order to clarify the inhibitory effect of LZO (La2Zr2O7) on the oxidation of bond-coat in thermal barrier coatings (TBCs), NiCoCrAlY bond-coat was deposited on 310S substrate by detonation gun spraying, and single ceramic 8YSZ coating and LZO/8YSZ double ceramic coating were deposited by air plasma spraying. The microstructure and phase structure of TBCs before and after high temperature oxidation were analyzed by SEM, EDS and XRD. The results show that the relative oxidation mass gain of the double ceramic LZO/8YSZ and the single ceramic 8YSZ structure are 2.82 and 3.13 mg/cm(2), respectively. Their TGO (thermally grown oxide) growth rate constant K-p is 5.79 x 10(-2) and 6.26 x 10(-2) m(2)/h, respectively. And the corresponding thickness distribution range is 3.75 similar to 5.25 mu m and 5 similar to 5.5 mu m, respectively after isothermal oxidation (100 h) at 1100 degrees C. Compared with the single ceramic 8YSZ TBCs, TGO exhibits obvious characteristics which are less oxidation mass gain, lower growth rate, and slower beta phase transition in bond-coat of the LZO/8YSZ double ceramic TBCs.

关键词D-gun LZO/8YSZ double ceramic coating 1100 degrees C isothermal oxidation TGO
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收录类别SCI ; SCIE
语种中文
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000500083600016
出版者NORTHWEST INST NONFERROUS METAL RESEARCH
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/56499
专题材料科学与工程学院
省部共建有色金属先进加工与再利用国家重点实验室
通讯作者Li Wensheng
作者单位Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
第一作者单位省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位省部共建有色金属先进加工与再利用国家重点实验室
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GB/T 7714
Li Wensheng,Yang Lexin,An Guosheng,et al. Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(11):3527-3534.
APA Li Wensheng,Yang Lexin,An Guosheng,Cheng Bo,Feng Li,&Zhang Yi.(2019).Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings.RARE METAL MATERIALS AND ENGINEERING,48(11),3527-3534.
MLA Li Wensheng,et al."Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings".RARE METAL MATERIALS AND ENGINEERING 48.11(2019):3527-3534.
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