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金属学报  2007 

镍基高温合金GH4169高温变形流动应力模型研究

, PP. 937-942

Keywords: 镍基高温合金,热模拟压缩,流动应力

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Abstract:

镍基高温合金GH4169热模拟压缩实验结果表明变形温度的升高和应变速率的减小使该合金高温变形时的峰值应力和稳态应力显著降低,变形温度会影响其进入稳态变形时变形程度的大小.基于高温合金GH4169高温变形时的流动应力特征,运用模糊神经网络理论建立了该合金高温变形时的流动应力模型.计算与实验的流动应力的最大误差为10.18%,平均误差为2.11%,该模型的计算精度明显高于由回归法建立的高温合金GH4169高温变形时的流动应力模型.

References

[1]  HHu J P,Zhuang J Y,Du J H,Deng Q,Feng D,Zhong Z Y.Acta Metall Sin,2000;36:351 (胡建平,庄景云,杜金辉,邓群,冯涤,仲增墉.金属学报,2000;36:351)
[2]  ZZheng J M,Ma L Z,Zhuang J Y,Deng Q,Du J H,Zhong Z Y,Zhang Z W.In:Loria E A,ed.,Sueralloys 718,625, 706 and Various Derivatives,Warrendale,PA:The Min- erals,Metals and Materials Society,1997:183
[3]  ZZheng J M,Gao Z Y,Zhuang J Y,Zhong Z Y.Metall Mater Trans,1999;30A:2701
[4]  MMeyers M A,Benson D J,V(?)hringer O,Kad B K,Xue Q, Fu H-H.Mater Sci Eng,2002;A322:194
[5]  KKim S I,Lee Y S,Lee D L,Yoo Y C.Mater Sci En9,2003; A355:384
[6]  WWalgraef D.Mater Sci Eng,2002;A322:167
[7]  MMcQueen J,Ryan N D.Mater Sci En9,2002;A322:43
[8]  LLi M Q,Xiong A M.Mater Sci Technol,2002;18:212
[9]  SSims C T,Stoloff N S,Hagel W C.Superalloys lI- High Temperature Materials for Aerospace and Industrial Power.New York:John Wiley & Sons Inc,1987:103
[10]  Shi C X,Lu D,Rong K.40 Years of Superalloy in China. Beijing:The Chinese Publishing House of Science and Technology,1996:145 (师昌绪,陆达,荣科.中国高温合金四十年.北京:中国科学技术出版社,1996:145)
[11]  Chen G L.Theory of Superalloy.Beijing:Metallurgical Industries Press,1998:177 (陈国良.高温合金学.北京:冶金工业出版社,1988:177)
[12]  Zhang B J,Zhao G P,Jiao L Y,Xu G H,Qin H Y,Feng D.Acta Metall Sin,2005;41:351 (张北江,赵光普,焦兰英,胥国华,秦鹤勇,冯涤.金属学报,2005;41:351)
[13]  Ju Q,Li D G,Liu G Q.Acta Metall Sin,2006;42:218 (鞠泉,李殿国,刘国权.金属学报,2006;42:218)
[14]  Han Li Q.Artificial Neural Networks Theory,Design & Application—Artificial Neural Cell,Artificial Neural Net- works & Artificial Neural System.Beijing:Chemical In- dustry Press,2001:43 (韩力群.人工神经网络理论、设计及应用——人工神经细胞、人工神经网络和人工神经系统.北京:化学工业出版社,2001:43)
[15]  Li M Q,Ju W B,Lin Y Y,Wang X J,Niu Y.Mater Sci Technol,2007,in press

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