| Mechanical behaviour of Zr doped Ni3Al alloy: effects of heat treatment, environment, and temperature | |
| Y. F. Li; J. T. Guo; H. Q. Ye | |
| 2005 | |
| Source Publication | Materials Science and Technology
 |
| ISSN | 0267-0836 |
| Volume | 21Issue:7Pages:824-830 |
| Abstract | The mechanical behaviour of polycrystalline Ni76Al23Zr alloy was studied as a function of heat treatment, environment, and temperature. It was found that the tensile ductility was very sensitive to temperature, the alloy showing low ductility at temperatures' from 700 to 1000 degrees C both in air and vacuum. Environmental embrittlement could be alleviated for those specimens with elongated grains. The ductile transgranular fracture was explained by stress concentration at the intersection of slip bands and grain boundaries. It was also found that an oxide layer, formed during tensile testing at elevated temperature, affected the environmental embrittlement of Ni3Al(Zr) alloy. An adherent Al rich oxide film was effective in protecting the underlying alloy from oxygen penetration. |
| description.department | chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;guo, jt (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;jtguo@imr.ac.cn |
| Keyword | Ni3al(Zr) Alloy Mechanical Properties Environmental Embrittlement Recrystallisation Treatment Low-expansion Superalloy Embrittlement Dependence Ductility |
| URL | 查看原文 |
| WOS ID | WOS:000231222600010 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34914 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Y. F. Li,J. T. Guo,H. Q. Ye. Mechanical behaviour of Zr doped Ni3Al alloy: effects of heat treatment, environment, and temperature[J]. Materials Science and Technology,2005,21(7):824-830. |
| APA | Y. F. Li,J. T. Guo,&H. Q. Ye.(2005).Mechanical behaviour of Zr doped Ni3Al alloy: effects of heat treatment, environment, and temperature.Materials Science and Technology,21(7),824-830. |
| MLA | Y. F. Li,et al."Mechanical behaviour of Zr doped Ni3Al alloy: effects of heat treatment, environment, and temperature".Materials Science and Technology 21.7(2005):824-830. |
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