Fabrication of Nanocrystalline Metallic Materials without Severe Plastic Deformation

无严重塑性变形的纳米晶金属材料的制备

• 批准号: 25600039
• 负责人: TSUJI Nobuhiro
• 金额: $ 2.58万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2013
• 资助国家: 日本
• 起止时间: 2013-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-25600039/
• 关键词: ナノ結晶; 超微細粒金属; 再結晶; 圧延; 巨大ひずみ加工; 力学特性; 強度; 延性; 変形; 転位; 粒成長; 塑性不安定; 強加工

The purpose of this experimental study was to obtain fully-recrystallized nano structures having mean grain sizes much smaller than 1 um in various metallic alloys. Fully-recrystallized nano crystals were successfully obtained by simple cold-deformation and annealing processes in Fe-31Mn-3Al-3Si, Fe-22Mn-0.6C, Cu-6.8Al (mass%) and some high entropy alloys. All alloys showing fully-recrystallized nano structures exhibited both high strength and large tensile elongation at room temperature.

这项实验研究的目的是获得具有各种金属合金中平均晶粒大小的平均晶粒大小的全重结纳米结构。 通过简单的冷染色和Fe-31MN-3AL-3SI，Fe-22MN-0.6C，CU-6.8AL（质量％）和一些高熵合金中的简单冷染料和退火过程成功地获得了全重分的纳米晶体。 所有显示全率纳米结构的合金在室温下均表现出高强度和大拉伸伸长率。

项目成果

Mechanical Properties of Bulk Ultrafine Grained Aluminum Fabricated by Torsion Deformation at Various Temperatures and Strain Rates

• DOI: 10.2320/matertrans.ma201321
• 发表时间: 2014
• 期刊: Materials Transactions
• 影响因子: 1.2
• 作者: S. Khamsuk;N. Park;Si-feng Gao;D. Terada;H. Adachi;N. Tsuji

Formation of Fully Annealed Nanocrystalline Austenite in Fe–Ni–C Alloy

Fe 中完全退火纳米晶奥氏体的形成

• DOI: 10.2320/matertrans.m2013324
• 发表时间: 2014
• 期刊: MATERIALS TRANSACTIONS
• 影响因子: 1.2
• 作者: Shuai Chen;Akinobu Shibata;Si Gao and Nobuhiro Tsuji
• 通讯作者: Si Gao and Nobuhiro Tsuji

Nanocrystalline Twinning Induced Plasticity Steel with Superior Mechanical Properties Fabricated by Cold Rolling and Annealing

冷轧退火制备的具有优异力学性能的纳米晶孪晶诱导塑性钢

• DOI: 10.4028/www.scientific.net/msf.753.518
• 发表时间: 2013
• 期刊: Mater. Sci. Forum
• 作者: Rajib Saha;Rintaro Ueji and Nobuhiro Tsuji
• 通讯作者: Rintaro Ueji and Nobuhiro Tsuji

Nanocrystalline TWIP Steel with Superior Mechanical Properties Fabricated by Cold Rolling and Annealing

冷轧退火制备的具有优异力学性能的纳米晶TWIP钢

• 发表时间: 2013
• 作者: Rajib Saha;Rintaro Ueji and Nobuhiro Tsuji
• 通讯作者: Rintaro Ueji and Nobuhiro Tsuji

Nanocrystalline Austenite in Fe-24Ni-0.3C Alloy Fabricated by High Pressure Torsion and Subsequent Heat Treatment

Fe-24Ni-0.3C 合金中高压扭转及后续热处理制备的纳米晶奥氏体

• 发表时间: 2013
• 作者: Shuai Chen;Akinobu Shibata and Nobuhiro Tsuji
• 通讯作者: Akinobu Shibata and Nobuhiro Tsuji