| Thermo-mechanical fatigue behavior of cast nickel-based superalloy K417 |
| Liu, F; Al, SH; Wang, YC; Zhang, H; Wang, ZG
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| 通讯作者 | Liu, F()
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| 2001-03-18
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| 发表期刊 | ACTA METALLURGICA SINICA
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| ISSN | 0412-1961
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| 卷号 | 37期号:3页码:267-271 |
| 摘要 | The thermo-mechanical fatigue (TMF) behavior of cast nickel-base superalloy K417 was investigated in full reversed total strain control in the temperature range from 400 to 850 degreesC, Both in-phase (maximum tensile strain at maximum temperature) and out-of-phase (maximum compressive strain at maximum temperature) experiments were conducted. Comparative evaluations were made with existing results of isothermal fatigue (IF) at 850 degreesC of the same alloy. It is found that TMF and IF cause more cyclic hardening in comparison with static tension at 850 degreesC. The tendency of IF cyclic hardening is higher than that of TMF. At the same mechanical strain and temperature, TMF shows shorter life as it compared with isothermal fatigue, and the in-phase cyclic life is lower than that of out-of-phase. Observations of fracture surfaces and longitudinal sections by SEM reveal that fatigue cracks of IP initiate at the grain boundaries and propagate intergranularly, and the cracks of OP nucleate within the grain and grow transgranularly. |
| 关键词 | cast nickel-base superalloy
thermo-mechanical fatigue
in-phase
out-of-phase
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS研究方向 | Metallurgy & Metallurgical Engineering
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| WOS类目 | Metallurgy & Metallurgical Engineering
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| WOS记录号 | WOS:000172766400010
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| 出版者 | SCIENCE CHINA PRESS
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/113159
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| 专题 | 中国科学院金属研究所
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| 通讯作者 | Liu, F |
| 作者单位 | Chinese Acad Sci, Met Res Inst, State Key Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China
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推荐引用方式
GB/T 7714 |
Liu, F,Al, SH,Wang, YC,et al. Thermo-mechanical fatigue behavior of cast nickel-based superalloy K417[J]. ACTA METALLURGICA SINICA,2001,37(3):267-271.
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| APA |
Liu, F,Al, SH,Wang, YC,Zhang, H,&Wang, ZG.(2001).Thermo-mechanical fatigue behavior of cast nickel-based superalloy K417.ACTA METALLURGICA SINICA,37(3),267-271.
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| MLA |
Liu, F,et al."Thermo-mechanical fatigue behavior of cast nickel-based superalloy K417".ACTA METALLURGICA SINICA 37.3(2001):267-271.
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