Development of the control technique for damage formation of advanced heat resistant material based on the EBSD analysis

基于EBSD分析的先进耐热材料损伤形成控制技术开发

• 批准号: 23760084
• 负责人: SUGIURA Ryuji
• 金额: $ 2.91万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760084/
• 关键词: 構造力学; EBSD; 高温先進耐熱材料; 損傷評価; 国際情報交流; イギリス; アメリカ; 韓国; 中国

High temperature damage for advanced hear-resistant materials under creep-fatigue interactive condition affected by strengthening microstructure, such as that exhibited by the martensitic lath structure, has not yet been clarified. In the present study, the experiments of creep-fatigue crack growth tests and the quantitative analysis of damage on the basis of metallographical investigation using EBSD technique were conducted to understand the interactive effects of creep and fatigue on the characteristics of damage formation and crack growth. As a result, creep effect contributed to the expansion of damage region and fatigue effect increased the degree of damage. These results will promote the development of the control technique for material structure that will enable us to accurately predict crack growth life.

在蠕变-疲劳交互作用条件下，先进耐热材料的高温损伤受强化显微组织（如马氏体板条组织）的影响，尚未得到阐明。本文通过蠕变-疲劳裂纹扩展试验和基于EBSD技术的金相损伤定量分析，研究了蠕变和疲劳的交互作用对损伤形成和裂纹扩展的影响。结果表明，蠕变效应使损伤区域扩大，疲劳效应使损伤程度加重。这些结果将促进材料结构控制技术的发展，使我们能够准确地预测裂纹扩展寿命。

项目成果

EBSD法によるIN738LC切欠き材のクリープ損傷評価

采用EBSD法评估IN738LC缺口材料的蠕变损伤

• 发表时间: 2011
• 期刊: 日本材料強度学会誌
• 作者: 小林大輔;宮部正道;鍵谷幸生;南雲佳子;杉浦隆次;松崎隆;横堀壽光
• 通讯作者: 横堀壽光

高温構造脆性概念に基づく溶接継手部の健全性評価

基于高温结构脆性概念的焊接接头健全性评价

• 发表时间: 2013
• 作者: R. Sugiura;A. T. Yokobori;Jr.;T. Nakagawa;T. Adachi;I. Nonaka;M. Tabuchi;Y. Hasegawa and T. Matsuzaki;原祥太郎,泉聡志,酒井信介;杉浦隆次
• 通讯作者: 杉浦隆次

Creep crack initiation and growth characteristics in weldment for P92 based on C*, dδ/dt and Q* parameters

基于 C*、dδ/dt 和 Q* 参数的 P92 焊件蠕变裂纹萌生和扩展特性

• 发表时间: 2011
• 期刊: Strength, Fracture and Complexity, An International Journal
• 作者: Ryuji Sugiura;A. Toshimitsu Yokobori;Jr.;Kazuto Sato;Masaaki Tabuchi;Masataka Yatomi;Kenichi Kobayashi and Kamran Nikbin
• 通讯作者: Kenichi Kobayashi and Kamran Nikbin

高Crフェライト系耐熱鋼のクリープ・疲労条件下におけるき裂成長特性と損傷評価

高铬铁素体耐热钢蠕变和疲劳条件下裂纹扩展特征及损伤评价

• 发表时间: 2012
• 期刊: 日本金属学会誌
• 作者: 松崎隆;杉浦隆次;南雲佳子;横堀壽光
• 通讯作者: 横堀壽光

Creep crack initiation and growth behavior for Ni-base superalloys, Special Issue on Advanced Technology in Experimental Mechanics

镍基高温合金的蠕变裂纹萌生和扩展行为，实验力学先进技术特刊

• 发表时间: 2012
• 期刊: Journal of Solid Mechanics and Materials Engineering
• 作者: Yoshiko Nagumo;A.Toshimitsu Yokobori,Jr.;Ryuji Sugiura;Go Ozeki and Takashi Matsuzaki
• 通讯作者: Go Ozeki and Takashi Matsuzaki