| Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel | |
| He, Y; Su, GY; Qu, WS; Kong, FY; He, L; Yang, K | |
| Corresponding Author | He, Y() |
| 2002-01-18 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 38Issue:1Pages:53-57 |
| Abstract | Variations of the grain size and its distribution of an ultra-purified 18Ni (2200 MPa grade) maraging steel under different solution treatment temperatures (STT) have been investigated, and the relationships between prior austenite grain size and tensile properties in both solutions and aging conditions were examined, and the mechanism was also discussed. The results show that the prior austenite grain size normally and consistently increases with increase of STT. Effects of the prior austenite grain size on strength and ductility are nearly independent of STT for the maraging steel in unaged state, and the thermal brittle at high solution temperature resulting from the segregation of inclusions, such as Ti(C, N), at prior austenite grain boundary is avoided because trace elements were removed to extremely low level. However, the Hall-Petch relationship is obeyed in aged condition, and the increase in prior austenite grain size induced the segregation of precipitates on grain boundary and aging brittle. |
| Keyword | 18Ni maraging steel solution treatment grain size mechanical property ultra-purified melting |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000173742700011 |
| Publisher | SCIENCE CHINA PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/113762 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | He, Y |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Shijiazhuang Iron & Steel Factory, Dept Tech Supervis, Shijiazhuang 050031, Peoples R China |
| Recommended Citation GB/T 7714 | He, Y,Su, GY,Qu, WS,et al. Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel[J]. ACTA METALLURGICA SINICA,2002,38(1):53-57. |
| APA | He, Y,Su, GY,Qu, WS,Kong, FY,He, L,&Yang, K.(2002).Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel.ACTA METALLURGICA SINICA,38(1),53-57. |
| MLA | He, Y,et al."Grain size and its effect on tensile property of ultra-purified 18Ni maraging steel".ACTA METALLURGICA SINICA 38.1(2002):53-57. |
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