A study on the structure control of Ni-saving high nitrogen stainless steel
| Project/Area Number |
20613014
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Element strategy
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
KATADA Yasuyuki National Institute for Materials Science, 燃料電池材料センター, NIMS特別研究員 (30127211)
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| Co-Investigator(Renkei-kenkyūsha) |
ADACHI Yoshitaka 独立行政法人物質・材料研究機構, 材料信頼性萌芽ラボ, 主幹研究員 (90370311)
TAGUCHI Tetsushi 独立行政法人物質材料研究機構, 生体材料センター, 主幹研究員 (70354264)
INOUE Motoki 独立行政法人物質・材料研究機構, 生体材料センター, 研究業務員
SASAKI Makoto 独立行政法人物質・材料研究機構, 生体材料センター, NIMSジュニア研究員
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 高窒素ステンレス鋼 / ニッケルフリー / 組織制御 / 結晶粒微細化 / 金属材料 / 機械的性質 / 薄板冷間圧延加工 / シームレスパイプ加工 / ステント / ランクフォード値 |
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| Research Abstract |
Although high nitrogen stainless steel newly developed by NIMS is a promising material with high strength, highly corrosion resistance and non-magnetic properties, a week-point of HNS is the lack of formability. In this study most suitable material design followed by structure control by grain size refinement method were carried out in order to improve the formability of HNS. As a result, grain size refinement of HNS was successfully conducted down to 5 micron meter in diameter, and more than 38% in total elongation was achieved. In addition HNS thin plate less than 0.1 mm in thickness was also successfully formed.
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Report
(4 results)
Research Products
(27 results)
