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Failure Behavior of Thermal Barrier Coatings on Cylindrical Superalloy Tube Under Thermomechanical Fatigue
Z. B. Chen; Z. G. Wang; S. J. Zhu
2013
Source PublicationActa Metallurgica Sinica-English Letters
ISSN1006-7191
Volume26Issue:4Pages:404-408
AbstractFailure behavior of thermal barrier coatings on cylindrical superalloy tube was investigated under thermomechanical fatigue (TMF). Two types of TMF tests, i.e. in phase (IP) and out of phase (OP), were performed in the temperature range of 450-850 degrees C. All tests were carried out under mechanical strain control at a given period of 300 s. The bond coat NiCrA1Y was produced by high velocity oxygen fuel (HVOF), and the top coat 7%Y2O3-ZrO2 was deposited by air plasma spraying (APS). The testing results showed that the OP TMF life was longer than the IP TMF one under the same mechanical strain amplitude. Observations of the fractured specimens revealed that the interface damage and cracking behavior in the two phasing conditions were different. In OP loading, the top coat was cracked and detached from the bond coat while no spallation was found in the IP loading.
description.department[chen, zhubing] aviat ind corp china, shenyang aeroengine res inst, shenyang 110015, peoples r china. [chen, zhubing ; wang, zhongguang] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zhu, shijie] fukuoka inst technol, dept intelligent mech engn, higashi ku, fukuoka 8110295, japan. ; chen, zb (reprint author), aviat ind corp china, shenyang aeroengine res inst, shenyang 110015, peoples r china. ; chenzhb731@163.com
KeywordThermal Barrier Coating Air Plasma Spraying High Velocity Oxygen Fuel Thermomechanical Fatigue Mechanical Fatigue System Life Hvof Tbcs
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71169
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Z. B. Chen,Z. G. Wang,S. J. Zhu. Failure Behavior of Thermal Barrier Coatings on Cylindrical Superalloy Tube Under Thermomechanical Fatigue[J]. Acta Metallurgica Sinica-English Letters,2013,26(4):404-408.
APA Z. B. Chen,Z. G. Wang,&S. J. Zhu.(2013).Failure Behavior of Thermal Barrier Coatings on Cylindrical Superalloy Tube Under Thermomechanical Fatigue.Acta Metallurgica Sinica-English Letters,26(4),404-408.
MLA Z. B. Chen,et al."Failure Behavior of Thermal Barrier Coatings on Cylindrical Superalloy Tube Under Thermomechanical Fatigue".Acta Metallurgica Sinica-English Letters 26.4(2013):404-408.
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