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·1372· 北京科技大学学报 第33卷 的固溶温度:反之,若需要增加合金的抗扩展能力, Energy.2008,13(Suppl 1)24 则需要选择大于1045℃高温固溶. (董建新,张麦仓,郑磊,等.组织特征对GH864合金裂纹扩展 行为的影响.中外能源,2008,13(增刊1):24) (3)稳定化处理过程中,随稳定化时间的延长 5] Yao Z H,Dong J X,Zhang M C,et al.Relationships between 和温度的升高,晶界碳化物析出量增加,降低了合金 microstructures and properties for GH864 superalloy.Rare Met 的裂纹扩展速率.当碳化物连续系数f小于0.56 Mater Eng,2010,39(9):1565 时则抗扩展能力高于抗萌生能力:相反当f大于 (姚志浩,董建新,张麦仓,等.GH864合金显微组织与力学性 0.56时裂纹萌生期比例提高,而裂纹扩展期比例则 能的关联性研究.稀有金属材料与工程学报,2010,39(9): 下降. 1565) [6] Merrick H F,Floreen S.The effects of microstructure on elevated 参考文献 temperature crack growth in Nickel-base alloys.Metall Trans A, Cao CX.Change of material selection criterion and development of 1978,9(2):231 high damageolerant titanium alloy.Acta Metall Sin,2002,38 [7]Chen E Y,Sauer S,Meshii M,et al.Fatigue microcrack distribu- (Suppl)4 tions and the reliability of a nickel base superalloy.Int J Fatigue, (曹春晓.选材判据的变化与高损伤容限钛合金的发展.金属 1997,19(Suppl):S75 学报,2002,38(增刊):4) [8]Remy L,Alam A,Haddar N,et al.Growth of small cracks and Shi W,Huang X P,Cui W C.Fatigue crack growth prediction prediction of lifetime in high-emperature alloys.Mater Sci Eng A, based on unique crack growth rate curve model.Ship Mech, 2007,468470:40 2008,12(2):264 9]Liu X B,Kang B,Chang K M.The effect of hold-time on fatigue (施伟,黄小平,崔维成.基于疲劳裂纹扩展率单一曲线模型 crack growth behaviors of WASPALOY alloy at elevated tempera- 的疲劳寿命预测.船舶力学,2008,12(2):264) ture.Mater Sci Eng A,2003,340(1/2):8 3]Zhang L.Tang LQ.Fu DL.Evaluation method of fatigue life un- [10]He L Z,Zheng Q,Sun X F,et al.Effect of carbides on the creep der multi-axial loading based on damage accumulation theory.J properties of a Nibase superalloy M963.Mater Sci Eng A, Harbin Inst Technol,2009,41(4):123 2005,397(1/2):297 (张莉,唐立强,付德龙.基于损伤累积理论的多轴疲劳寿命 [11]Pang H T,Reed P A S.Microstructure effects on high tempera- 预测方法.哈尔滨工业大学学报,2009,41(4):123) ture fatigue crack initiation and short crack growth in turbine disc 4]Dong J X,Zhang M C,Zheng L,et al.A study on influence of nickel-base superalloy Udimet 720Li.Mater Sci Eng A,2007,448 microstructure on crack propagation of GH864 alloy.Sino-Global (12):67北 京 科 技 大 学 学 报 第 33 卷 的固溶温度; 反之,若需要增加合金的抗扩展能力, 则需要选择大于 1 045 ℃高温固溶. ( 3) 稳定化处理过程中,随稳定化时间的延长 和温度的升高,晶界碳化物析出量增加,降低了合金 的裂纹扩展速率. 当碳化物连续系数 fc 小于 0. 56 时则抗扩展能力高于抗萌生能力; 相反当 fc 大于 0. 56 时裂纹萌生期比例提高,而裂纹扩展期比例则 下降. 参 考 文 献 [1] Cao C X. Change of material selection criterion and development of high damage-tolerant titanium alloy. Acta Metall Sin,2002,38 ( Suppl) : 4 ( 曹春晓. 选材判据的变化与高损伤容限钛合金的发展. 金属 学报,2002,38( 增刊) : 4) [2] Shi W,Huang X P,Cui W C. Fatigue crack growth prediction based on unique crack growth rate curve model. J Ship Mech, 2008,12( 2) : 264 ( 施伟,黄小平,崔维成. 基于疲劳裂纹扩展率单一曲线模型 的疲劳寿命预测. 船舶力学,2008,12( 2) : 264) [3] Zhang L,Tang L Q,Fu D L. Evaluation method of fatigue life un￾der multi-axial loading based on damage accumulation theory. J Harbin Inst Technol,2009,41( 4) : 123 ( 张莉,唐立强,付德龙. 基于损伤累积理论的多轴疲劳寿命 预测方法. 哈尔滨工业大学学报,2009,41( 4) : 123) [4] Dong J X,Zhang M C,Zheng L,et al. A study on influence of microstructure on crack propagation of GH864 alloy. Sino-Global Energy,2008,13( Suppl 1) : 24 ( 董建新,张麦仓,郑磊,等. 组织特征对 GH864 合金裂纹扩展 行为的影响. 中外能源,2008,13( 增刊 1) : 24) [5] Yao Z H,Dong J X,Zhang M C,et al. Relationships between microstructures and properties for GH864 superalloy. Rare Met Mater Eng,2010,39( 9) : 1565 ( 姚志浩,董建新,张麦仓,等. GH864 合金显微组织与力学性 能的关联性研究. 稀有金属材料与工程学报,2010,39 ( 9 ) : 1565) [6] Merrick H F,Floreen S. The effects of microstructure on elevated temperature crack growth in Nickel-base alloys. Metall Trans A, 1978,9( 2) : 231 [7] Chen E Y,Sauer S,Meshii M,et al. Fatigue microcrack distribu￾tions and the reliability of a nickel base superalloy. Int J Fatigue, 1997,19( Suppl) : S75 [8] Rémy L,Alam A,Haddar N,et al. Growth of small cracks and prediction of lifetime in high-temperature alloys. Mater Sci Eng A, 2007,468-470: 40 [9] Liu X B,Kang B,Chang K M. The effect of hold-time on fatigue crack growth behaviors of WASPALOY alloy at elevated tempera￾ture. Mater Sci Eng A,2003,340( 1 /2) : 8 [10] He L Z,Zheng Q,Sun X F,et al. Effect of carbides on the creep properties of a Ni-base superalloy M963. Mater Sci Eng A, 2005,397( 1 /2) : 297 [11] Pang H T,Reed P A S. Microstructure effects on high tempera￾ture fatigue crack initiation and short crack growth in turbine disc nickel-base superalloy Udimet 720Li. Mater Sci Eng A,2007,448 ( 1 /2) : 67 ·1372·
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