Extension of high temperature life time of low activation vanadium alloys by nano-particle control

通过纳米颗粒控制延长低活化钒合金的高温寿命

• 批准号: 22360392
• 负责人: MUROGA Takeo
• 金额: $ 11.23万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22360392/
• 关键词: バナジウム合金; 高温強度; 熱クリープ; 歪時効硬化; メカニカルアロイング; ナノ粒子分散; 低放射化材料; 高温クリープ; 耐食性

For the purpose of enhancing high temperature strength and upper operation temperature limit of low activation vanadium alloys, which are promising candidate of fusion structural materials, production of V-4Cr-4Ti alloys containing high density precipitates and high density nano-particles was performed by repeated thermo-mechanical treatments and mechanical alloying, respectively. Mechanical property evaluation including thermal creep tests verified the increased high temperature strength by the precipitates or nano-particles, and the underlying mechanisms were clarified.

为了提高低活化钒合金的高温强度和工作温度上限，分别采用反复热机械处理和机械合金化法制备了含有高密度析出相和高密度纳米颗粒的V-4Cr-4Ti合金。包括热蠕变试验在内的力学性能评价证实了析出物或纳米颗粒对高温强度的提高，并阐明了其潜在的机制。

项目成果

イットリウム添加バナジウム 合金V-4Cr-4Ti-0.15Y の照射硬化

掺钇钒合金V-4Cr-4Ti-0.15Y的辐照硬化

• 发表时间: 2012
• 作者: 政宗貞男;三瓶明希夫;大木健輔;他;宮澤 健
• 通讯作者: 宮澤 健

Creep properties of V-4Cr-4Ti strengthened by cold working and aging

• DOI: 10.1016/j.fusengdes.2011.01.081
• 发表时间: 2011-10
• 期刊: Fusion Engineering and Design
• 影响因子: 1.7
• 作者: P. Zheng;T. Nagasaka;T. Muroga;J. Chen;Yanfen Li

The effect of final heat treatment temperature on radiation response of V-4Cr-4Ti

• DOI: 10.1016/j.jnucmat.2010.12.075
• 发表时间: 2011-10
• 期刊: Journal of Nuclear Materials
• 影响因子: 3.1
• 作者: T. Muroga;T. Nagasaka;Hideo Watanabe;M. Yamazaki

Moderation of Negative Oxygen Effects by Small Yttrium Addition to Low Activation Vanadium Alloys

通过向低活化钒合金中添加少量钇来缓和负氧效应

• DOI: 10.13182/fst11-a12390
• 发表时间: 2011
• 期刊: Fusion Science and Technology
• 影响因子: 0.9
• 作者: T. Miyazawa;T. Nagasaka;Y. Hishinuma;T. Muroga;Yanfen Li
• 通讯作者: Yanfen Li

Progress in the Development of Insulator Coating for Liquid Lithium Blankets

液态锂毯绝缘体涂层的开发进展

• 发表时间: 2009
• 作者: 杉浦寛和、金村卓治、鈴木幸子、近藤浩夫、堀池寛;他;室賀健夫
• 通讯作者: 室賀健夫