複合荷重下の2 1/4Cr-1Mo鋼のクリープ疲労相互作用
スポンサーリンク
概要
- 論文の詳細を見る
The combined creep-fatigue loading tests and the fatigue tests with tensile strain-hold wave form were conducted on 2 1/4Cr-1Mo steel, and the creep damage, φc, and the fatigue damage, φf, which were accumulated till rupture were calculated using the linear life fraction damage rule. The creep loading conditions of the both tests were within the transglanular fracture region on the creep fracture mode map obtained from the creep rupture tests. The specimens in the combined creep-fatigue loading tests were ruptured by an accumulation of either φc or φf, and the values of φc, and φf at fracture were 1.3 and 1.0, respectively. This φc vs. φf relation for 2 1/4Cr-1Mo steel showed the same trend as that for SUS304, SUS316 and 1Cr-Mo-V steels obtained from the combined creep-fatigue loading tests under the same creep damage mode condition, but the value of φc was dependent on testing materials. The φc-value seemed to be related with hardening or softening of materials due to fatigue loading.The φc vs. φf relation evaluated from the fatigue tests with tensile strain-hold wave form showed a different tendency to that evaluated from the combined creep-fatigue loading tests for 2 1/4Cr-1Mo steel. 1Cr-Mo-V steel showed the similar trend as 2 1/4Cr-1Mo steel, but the φc vs. φf relations obtained from both tests was the same for SUS316 steel. The effect of testing procedure on the φc vs. φf relation seemed to be connected with the sensitivity to oxidation of testing materials.
- 社団法人 日本材料学会の論文
著者
関連論文
- 低合金フェライト鋼の長時間クリープ強度に及ぼす初期組織の影響
- フェライト鋼の基底クリープ強度に及ぼす初期組織の影響
- 489 STBA 24 の 10 万時間クリープ破断特性及びクリープ変形特性(耐熱鋼・耐熱合金 (I), 材料, 日本鉄鋼協会第 111 回(春季)講演大会)
- 504 1Cr-0.5Mo 鋼 (SCMV 2 NT) 及び 2.25Cr-1Mo 鋼 (ASTM A542) の長時間クリープ破断特性(耐熱鋼・耐熱合金 (1), 材料, 日本鉄鋼協会第 109 回(春季)講演大会)
- 609 21Cr-20Ni-20Co-3Mo-2.5W-(Nb+Ta)-N 合金 (N-155) のクリープ破断データ(耐熱鋼・耐熱合金 (2)(3), 材料, 日本鉄鋼協会第 107 回(春季)講演大会)
- 483 インコネル 713C 及び X45 のクリープ破断データ : 金材技研における長時間クリープ試験データ XIX(熱処理・耐熱合金 (II), 性質, 日本鉄鋼協会 第 97 回(春季)講演大会)
- 12%Cr-15%Mn オーステナイト鋼の高温強度に及ぼす V と W 添加の影響
- TiAl金属間化合物のクリープき裂成長試験方法に関する検討とクリープき裂成長特性
- 1Cr-Mo-V鋼のクリープき裂成長特性に及ぼす試験片板厚の影響(高温強度)
- Ni基超耐熱合金のクリープき裂成長特性