Effect of aging on microstructure and mechanical property of 1900 MPa grade maraging stainless steel
文献类型：期刊论文
| 作者 | K. Liu ; Y. Y. Shan ; Z. Y. Yang ; J. X. Liang ; L. Lu ; K. Yang |
| 刊名 | Journal of Materials Science & Technology
 |
| 出版日期 | 2007 |
| 卷号 | 23期号:3页码:312-318 |
| 关键词 | maraging stainless steels precipitation high strength steels aging treatment precipitation reactions phase chemistry quasi-crystalline heat-treatment grain-size strength nickel temperature aermet-100 behavior |
| ISSN号 | 1005-0302 |
| 中文摘要 | The 18%Ni alloy steels provide high strength and toughness, while age-hardenable or PH stainless steels also have good corrosion resistance. This paper focuses on an investigation of the heat treatment, mechanical properties and microstructural development of a new maraging stainless steel. It is reported that the heat treatment process should consist of solution treatment and cryogenic cooling to attain a fully martensitic structure, followed by aging at 813 K. This heat treatment resulted in an ultimate tensile strength of over 1900 MPa combined with good impact toughness. Transmission electron microscopy is used to show that, for the peak-aged condition (813 K/4 h), nano-sized precipitates, e.g. Ni(3)Mo and/or R-phase, and a high density of dislocations were uniformly dispersed in the lath martensite matrix. The calculated yield strength, based on a revised Orowan mechanism, is in good agreement with the test data. The steel studied has an ultimate tensile strength over 1900 MPa, excellent fracture toughness, and good resistance against over-aging and relatively good corrosion resistance as well. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33710]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | K. Liu,Y. Y. Shan,Z. Y. Yang,et al. Effect of aging on microstructure and mechanical property of 1900 MPa grade maraging stainless steel[J]. Journal of Materials Science & Technology,2007,23(3):312-318. |
| APA | K. Liu,Y. Y. Shan,Z. Y. Yang,J. X. Liang,L. Lu,&K. Yang.(2007).Effect of aging on microstructure and mechanical property of 1900 MPa grade maraging stainless steel.Journal of Materials Science & Technology,23(3),312-318. |
| MLA | K. Liu,et al."Effect of aging on microstructure and mechanical property of 1900 MPa grade maraging stainless steel".Journal of Materials Science & Technology 23.3(2007):312-318. |
入库方式： OAI收割
来源：金属研究所
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