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Acta Metall Sin  2010, Vol. 46 Issue (3): 324-328    DOI: 10.3724/SP.J.1037.2009.00781
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STRENGTHENING MECHANISM OF POWDER METALLURGY SUPERALLOY BY HOT-DIE FORGING + DIRECT AGING
NING Yongquan; YAO Zekun; XIE Xinghua; GUO Hongzhen; TAN Lijun; TAO Yu
1) School of Materials Science and Engineering; Northwestern Polytechnical University; Xi'an 710072 2) High Temperature Materials Research Institute; Central Iron and Steel Research Institute; Beijing 100081
Cite this article: 

NING Yongquan YAO Zekun XIE Xinghua GUO Hongzhen TAN Lijun TAO Yu. STRENGTHENING MECHANISM OF POWDER METALLURGY SUPERALLOY BY HOT-DIE FORGING + DIRECT AGING. Acta Metall Sin, 2010, 46(3): 324-328.

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Abstract  

Hot--die forging+direct aging processing was used to improve the microstructure and
mechanical property of P/M superalloy FGH 4096, a kind of materials used in turbine disk, which includes a
solution treatment at 1130 ℃ for 0.5 h, multiaxially forging (total deformation about 100\%) and direct aging at
760 ℃ for 16 h, in addition, drawing (70%) and upseting (40%)+direct aging treatment has also been
invesigated. OM, SEM and TEM were employed to study the microstructure evolution and strengthen
mechanism. It was found that the direct aging treatment has obvious effect on strengthening, especially, for the
multiaxially forged alloy, in which dynamic recrystallization appeared, and the previous particle boundary is
replaced by clean recrystallized boundary and the grain is refined to about 6 μm. After direct aging the average
size of γ'  phase is 80 nm, and the tangled dislocation is still reserved. The strengthening mechanisms
include grain refinement, clean boundary, thermomechanical deformation and γ' phase precipitation.

Key words:  Powder metallurgy superalloy      hot-die forging + direct aging      strengthening mechnism     
Received:  24 November 2009     

URL: 

https://www.ams.org.cn/EN/10.3724/SP.J.1037.2009.00781     OR     https://www.ams.org.cn/EN/Y2010/V46/I3/324

[1] Reed R C. The Superalloys Fundamentals and Applications. New York: Cambridge University Press, 2006: 217
[2] Ning Y Q, Yao Z K, Guo H Z, Tao Y, Zhang Y W. Key Eng Mater, 2009; 407–408: 694
[3] Zhao M L, Sun W R, Yang S L, Qi F, Guo S R, Hu Z Q. Acta Metall Sin, 2009; 45: 79
(赵美兰, 孙文儒, 杨树林, 祈 峰, 郭守仁, 胡壮麒. 金属学报, 2009; 45: 79)

[4] Viswanathan G B, Sarosi P M, Henry M F, Whitis D D, Milligan W W, Mills M J. Acta Mater, 2005; 53: 3041
[5] Dunlavy M A, Shivpuri R, Semiatin S L. Mater Sci Eng, 2003; A359: 210
[6] Viswanathan G B, Sarosi P M, Whitis D H, Mills M J. Mater Sci Eng, 2005; A400–401: 489
[7] Liu J T, Liu G Q, Hu B F, Song Y P, Qin Z R, Zhang Y W. J Univ Sci Technol Beijing, 2006; 13: 319
[8] Tian G F, Jia C C, Wen Y, Hu B F. J Univ Sci Technol Beijing, 2008; 15: 729
[9] Liu J T, Liu G Q, Hu B F, Song Y P, Qin Z R, Xiang S, Zhang Y W. Rare Metal Mater Eng, 2006; 35: 418
(刘建涛, 刘国权, 胡本芙, 宋月鹏, 秦子然, 向嵩, 张义文. 稀有金属材料与工程, 2006; 35: 418)

[10] Su ZW, Yao Z K, Guo H Z, Liu J C, Liu J Y, Cui J, Liu G Q, Jiang M, Ying Z Y. Acta Metall Sin, 1996; 32: 377
(苏祖武, 姚泽坤, 郭鸿镇, 刘建超, 刘建宇, 崔健, 刘果青, 姜 明, 应志毅. 金属学报, 1996; 32: 377)

[11] Yao Z K, Guo H Z, Liu J C, Su Z W, Jiang M, Ying Z Y, Liu J Y, Cui J. Chin J Nonfer Met, 2000; 10: 378
(姚泽坤, 郭鸿镇, 刘建超, 苏祖武, 姜明, 应志毅, 刘建宇, 崔健. 中国有色金属学报, 2000; 10: 378)

[12] Barani A A, Ponge D, Raabe D. Mater Sci Eng, 2006; A426: 194
[13] Koyama M, Sawaguchi T, Ogawa K, Kikuchi T, Murakami M. Mater Sci Eng, 2008; A497: 353
[14] KockarB,Karaman I, Kulkarni A, ChumlyakovY,Kireeva I V. J Nuc Mater, 2007; 361: 298
[15] Frenzel J, Pfetzing J, Neuking K, Eggeler G. Mater Sci Eng, 2008; A481–482: 635
[16] Bai B Z, Yang L Y, Zhao Y F. Chin J Rare Met, 2002; 26: 7
(白秉哲, 杨鲁义, 赵耀峰. 稀有金属, 2002; 26: 7)
[17] Chen H M, Hu B F. J Univ Sci Technol Beijing, 2003; 10: 51
[18] Guo W M, Wu J T, Zhang F G, Zhao M H. J Iron Steel Res Int, 2006; 13: 65
[19] Ning Y Q, Yao Z K, Li H, Guo H Z, Tao Y, Zhang Y W. Mater Sci Eng, 2010; A527: 965
[20] Ning Y Q, Yao Z K, Guo H Z, Tao Y, Zhang Y W. Chin J Mech Eng, 2009; 22: 926
[21] Ning Y Q, Yao Z K, Yue T W, Guo H Z, Tao Y, Zhang Y W. Rare Metal Mater Eng, 2009; 38: 1783
(宁永权, 姚泽坤, 岳太文, 郭鸿镇, 陶宇, 张义文. 稀有金属材料与工程, 2009; 38: 1783)

[22] Guo J T. Materials Science and Engineering for Superalloys. Beijing: Science Press, 2008: 111
(郭建亭. 高温合金材料学(上). 北京: 科学出版社, 2008: 111)
[23] John G, David F. Adv Mater Processes, 2003; 161: 26
[24] Liu Y Y. PhD Thesis, Northwestern Polytechnical University, Xi’an, 2009
(刘莹莹. 西北工业大学博士学位论文, 西安, 2009)

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