Improving mechanism of both strength and ductility of gh4169 alloy induced by electric-pulse treatment
文献类型：期刊论文
| 作者 | An, Jinlan1; Wang, Lei1; Song, Xiu1; Liu, Yang1; Gai, Zeyu1; Cao, Xingzhong2 |
| 刊名 | Materials science and engineering a-structural materials properties microstructure and processing
 |
| 出版日期 | 2018-05-02 |
| 卷号 | 724页码:439-443 |
| 关键词 | Electric-pulse treatment Strength Ductility Precipitate Gh4169 alloy |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2018.03.087 |
| 通讯作者 | Wang, lei(wanglei@mail.neu.edu.cn) |
| 英文摘要 | The microstructure characteristics of gh4169 alloy aged with electric-pulse treatment (ept) at 800 degrees c were investigated and tensile properties were examined at high temperature. the tensile test results indicate that the ultimate stress, yield stress and fracture elongation increase simultaneously in the alloy aged with ept compared with that of normal aged alloy. the vacancy concentration of the alloy aged with ept increases proved by positron annihilation spectrometer compared with that of normal aged alloy. vacancy concentration increase leads to increasing of yield stress at the initial stage of tensile deformation. farther, vacancy induces ultrafine nm-sized gamma(") phase to precipitate during tensile deformation at high temperature, which is the key factor on strength and ductility improvement. meanwhile, ept induces parts of gamma(") phase (precipitating during aged treatment) to precipitate around dislocation which impedes dislocation motion. |
| WOS关键词 | POSITRON-ANNIHILATION LIFETIME ; DELTA-PHASE ; COARSENING BEHAVIOR ; INCONEL-718 ALLOY ; FIELD TREATMENT ; NI ; FE ; STEEL ; PRECIPITATION ; SUPERALLOY |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000432640000047 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177525 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wang, Lei |
| 作者单位 | 1.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | An, Jinlan,Wang, Lei,Song, Xiu,et al. Improving mechanism of both strength and ductility of gh4169 alloy induced by electric-pulse treatment[J]. Materials science and engineering a-structural materials properties microstructure and processing,2018,724:439-443. |
| APA | An, Jinlan,Wang, Lei,Song, Xiu,Liu, Yang,Gai, Zeyu,&Cao, Xingzhong.(2018).Improving mechanism of both strength and ductility of gh4169 alloy induced by electric-pulse treatment.Materials science and engineering a-structural materials properties microstructure and processing,724,439-443. |
| MLA | An, Jinlan,et al."Improving mechanism of both strength and ductility of gh4169 alloy induced by electric-pulse treatment".Materials science and engineering a-structural materials properties microstructure and processing 724(2018):439-443. |
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来源：高能物理研究所
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