| Thermal fatigue crack initiation in K465 superalloy | |
| Yang, JX; Zheng, Q; Sun, XF; Guan, HR; Hu, ZQ | |
| Corresponding Author | Yang, JX(jxyang@imr.ac.cn) |
| 2005-11-01 | |
| Source Publication | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| ISSN | 1003-6326 |
| Volume | 15Pages:71-76 |
| Abstract | Thermal fatigue crack initiation of K465 superalloy was studied by optical microscope and scanning electron microscope(SEM). The maximum temperature and its corresponding holding time during thermal fatigue were respectively 950 degrees C for 100 s and 300 s, 1 000 degrees C for 100 s and 1 050 degrees C for 100 s and 300 s. The minimum temperature was 20 degrees C. The data of initiation lives shows that increasing the maximum temperature or holding time at peak temperature decreases, decreases TF crack initiation life and the effect of holding time is more distinct than that of peak temperature. The metallographic observation presents that TF crack initiates at voids aggregation damage zones(VADZs), carbide fracture damage zones(CFDZs). cracked carbide and phases interface. VADZs basically result from creep fatigue interaction deformation whereas CFDZs is mainly induced by oxidation. |
| Keyword | thermal fatigue oxidation creep crack initiation |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000233494100016 |
| Publisher | ALLERTON PRESS INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/82478 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, JX |
| Affiliation | Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, JX,Zheng, Q,Sun, XF,et al. Thermal fatigue crack initiation in K465 superalloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2005,15:71-76. |
| APA | Yang, JX,Zheng, Q,Sun, XF,Guan, HR,&Hu, ZQ.(2005).Thermal fatigue crack initiation in K465 superalloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,15,71-76. |
| MLA | Yang, JX,et al."Thermal fatigue crack initiation in K465 superalloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 15(2005):71-76. |
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