Production of Ultrafine Grained Structural Metallic Materials by Means of Severe Warm Rolling

严酷温轧生产超细晶结构金属材料

• 批准号: 10305054
• 负责人: SAITO Yoshihiro
• 金额: $ 24.32万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10305054/
• 关键词: structural metallic materials; aluminum alloys; steels; severe plastic deformation; rolling; accumulative roll-bonding (ARB); ultrafine grains; mechanical properties; 局所方位測定; 高強度; Hall-Petchの関係; 粒成長; 繰り返し重ね接合圧延(ARB); 回復・再結晶・粒成長; EBSP; ナノ結晶粒

Ultra-grain refinement of structural metallic materials was studied. A novel severe plastic deformation process applicable to continuous production of large bulky materials, Accumulative Roll-Bonding (ARB) was developed. The ARB process was applied to various kinds of aluminum alloys, steels and copper alloys, and ultrafine grained structure with mean grain sizes of several hundreds nano-meters was successfully obtained in all the materials. The ultrafine grained materials performed very high strength compared with the starting materials. The formation mechanism of the ultrafine grains during severe plastic deformation was clarified.

对结构金属材料的超细晶进行了研究。开发了一种适用于大体积材料连续生产的大塑性变形新工艺--累积滚压工艺。将ARB工艺应用于各种铝合金、钢和铜合金，成功地在所有材料中获得了平均晶粒尺寸为数百纳米的超细晶组织。与原始材料相比，超细晶材料表现出很高的强度。阐明了大塑性变形过程中超细晶的形成机制。

项目成果

N.Tsuji et al.: "Ultra-Fine Grained Bulk Steel Produced by Accumulative Roll-Bonding (ARB) Process"Scripta Materialia. 40. 795-800 (1999)

N.Tsuji 等人：“通过累积轧制 (ARB) 工艺生产的超细晶粒钢”Scripta Materialia。

N.Tsuji, T.Murakami and Y.Saito: "Formation of Ultra-Fine Grains in 5182 Aluminum Alloy Heavily Rolled at Warm Temperatures"J. of Japan Institute of Metals. 63. 243-251 (1999)

N.Tsuji、T.Murakami 和 Y.Saito：“在高温下重轧的 5182 铝合金中超细晶粒的形成”J。

N. Tsuji: "Ultra-Fine Grained Bulk Steel Produced by Accumulative Roll-Bonding"Scripta Materialia. vol.40. 795-800 (1999)

N. Tsuji：“通过累积轧制生产的超细晶粒散装钢”Scripta Materialia。

Y.Saito et al.: "Ultra-fine Grained Bulk Aluminum Produced by Accumulative Roll-Bonding (ARB) Process"Scripta Materialia. 39. 1221-1227 (1998)

Y.Saito 等人：“通过累积滚压接合 (ARB) 工艺生产的超细粒块状铝”Scripta Materialia。

辻 伸泰: "鉄鋼便覧 第4版.第1巻第2編7-7"丸善.

辻信泰：《钢铁手册第4版。第1卷第2部分7-7》丸善。