Effects of high pressure hydrogen gas on the fatigue strength for long-term use in candidate materials for the fuel cell system

高压氢气对燃料电池系统候选材料长期使用疲劳强度的影响

基本信息

  • 批准号:
    17360052
  • 负责人:
  • 金额:
    $ 9.88万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2007
  • 项目状态:
    已结题

项目摘要

In order to ensure the safety of materials of a fuel cell system against long-term fatigue in high pressure hydrogen gas environment, it is necessary to clarify the characteristics of hydrogen entry into the material and the effects of internal hydrogen and hydrogen gas on the fatigue characteristics and the fatigue mechanisms.(1) Measurements of hydrogen content in SCM 435 show that a plasma-charged sample contains 0.25 ppm hydrogen, which is 5 times in non-charged sample. The hydrogen plasma has ability as an alternative of high- pressure gas hydrogen environment However, the data are spread. Discussion of another plasma generation method or measures against heat evolution is required.(2) Fatigue life of plain specimen cannot explain the effects of hydrogen gas environment, because hydrogen gas lengthen the fatigue crack initiation life, while shorten the fatigue crack propagation life.(3) Degree of fatigue crack acceleration by hydrogen is different among materials: SUS304, SUS316L, SUS310S and A6061-T6.(4) Slip-off mechanism is valid even in hydrogen gas environment in a certain range of fatigue crack growth.(5) It is considered that the traditional assessment technique for the fatigue crack growth based on slip-off is effective and addition of the effects of diffusion rate to the assessment technique is a next object.
为了保证燃料电池系统材料在高压氢气环境下长期疲劳的安全性,有必要弄清氢进入材料的特性以及内部氢和氢气对疲劳特性的影响和疲劳机理。(1)SCM 435中氢含量的测量表明,等离子体充电的样品含有0.25 ppm的氢,是未充电样品的5倍。氢等离子体有能力替代高压氢环境,但数据分散。需要讨论另一种等离子体产生方法或防止热释放的措施。(2)普通试样的疲劳寿命不能解释氢气环境的影响,因为氢气延长了疲劳裂纹萌生寿命,但缩短了疲劳裂纹扩展寿命。(3)氢对材料疲劳裂纹的加速程度不同:SUS 304、SUS 316L、SUS 310 S和A6061-T6。(4)即使在氢气环境中,在一定范围内疲劳裂纹扩展,滑脱机制也是有效的。(5)认为传统的基于滑移的疲劳裂纹扩展评定方法是有效的,将扩散速率的影响加入到评定方法中是下一个目标。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
純チタンの疲労特性
纯钛的疲劳性能
SUS304鋼小穴材における疲労き裂の停留・伝ぱに及ぼす水素雰囲気の影響
氢气氛对SUS304小孔钢疲劳裂纹抑制和扩展的影响
オーステナイト系ステンレス鋼における疲労き裂伝ぱの水素ガス感受性を支配する因子に関する検討
奥氏体不锈钢疲劳裂纹扩展氢气敏感性影响因素研究
Effects of a Hydrogen Gas Environment on Fatigue Crack Growth of a Stable Austenitic Stainless Steel
氢气环境对稳定奥氏体不锈钢疲劳裂纹扩展的影响
水素雰囲気下における炭素鋼の疲労強度特性
氢气氛下碳钢的疲劳强度性能
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NOGUCHI Hiroshi其他文献

3D FEM Analysis of RC H Type Shear Walls Subjected to Reversed Cyclic Loads
反向循环荷载作用下 RC H 型剪力墙的 3D FEM 分析
FEM Analysis of Structural Performance Deterioration of RC Elements Subjected to Seismic Reversed Cyclic Shear
地震反向循环剪力作用下 RC 构件结构性能恶化的有限元分析
Seismic Performance Evaluation of RC Eccentric Beam-Column Joints Using Three-Dimensional FEM Analysis
利用三维有限元分析评估 RC 偏心梁柱节点的抗震性能
Three-Dimensional FEM Analysis of RC Beam-Column Joints with the Floor Slab under Cyclic Loadings
循环荷载作用下楼板RC梁柱节点三维有限元分析
Development of Three-Dimensional FEM Program for RC Structural Members under Cyclic Loading
循环荷载下钢筋混凝土结构构件三维有限元程序的开发

NOGUCHI Hiroshi的其他文献

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{{ truncateString('NOGUCHI Hiroshi', 18)}}的其他基金

Online posture estimation using pressure distribution on air mattress for pressure ulcer prevention
利用气垫上的压力分布进行在线姿势估计以预防压疮
  • 批准号:
    25560280
  • 财政年份:
    2013
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Generating molecular diversity by the wide range of polyketide synthases
通过多种聚酮合酶产生分子多样性
  • 批准号:
    22241054
  • 财政年份:
    2010
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Network framework for cooperative control of robots and distributed sensors based on on-site automatic component connection
基于现场自动组件连接的机器人与分布式传感器协同控制网络框架
  • 批准号:
    22700196
  • 财政年份:
    2010
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Damage Evaluations and Strength Deteriorations of High Strength RC Structures Containing Steel Fiber under Multi-Directional Loading
多向荷载作用下含钢纤维高强RC结构的损伤评价及强度劣化
  • 批准号:
    21560581
  • 财政年份:
    2009
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Structure formation of biomembranes in molecular scale
分子尺度生物膜的结构形成
  • 批准号:
    21740308
  • 财政年份:
    2009
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Urban Network and State Formation Process in Pre-Modern Cambodia
前现代柬埔寨的城市网络和国家形成过程
  • 批准号:
    19402009
  • 财政年份:
    2007
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
An investigation to the Business Creation using the Ubiquitous Network
利用无处不在的网络进行商业创造的调查
  • 批准号:
    17530316
  • 财政年份:
    2005
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Formation of unnatural novel polyketides and isoprenoids from alternate and/or nonphysiological substrate by the engineered plant enzymes
通过工程植物酶从替代和/或非生理底物形成非天然的新型聚酮化合物和类异戊二烯
  • 批准号:
    15310153
  • 财政年份:
    2003
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Quantitative Evaluation of Deterioration on Capacity and Ductility of RC Structural Members under Plastic Region Using Three-Dimensional FEM Analysis
使用三维有限元分析定量评估塑性区域下 RC 结构构件的承载能力和延展性劣化
  • 批准号:
    14350293
  • 财政年份:
    2002
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
An Investigation to the Mode of Business Creation in the Networked Economy
网络经济下的创业模式探讨
  • 批准号:
    14530161
  • 财政年份:
    2002
  • 资助金额:
    $ 9.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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