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| RESEARCH AND DEVELOPMENT OF γ´´ AND γ´ STRENGTHENED Ni-Fe BASE SUPERALLOY GH4169 |
| XIE Xishan1), DONG Jianxin1), FU Shuhong2), ZHANG Maicang1) |
1) High Temperature Materials Research Laboratories, School of Materials Science and Technology, University of Science and Technology Beijing, Beijing 100083
2) National Key Laboratory of Science and Technology on Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095 |
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Cite this article:
XIE Xishan DONG Jianxin FU Shuhong ZHANG Maicang. RESEARCH AND DEVELOPMENT OF γ´´ AND γ´ STRENGTHENED Ni-Fe BASE SUPERALLOY GH4169. Acta Metall Sin, 2010, 46(11): 1289-1302.
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Abstract γ´´ and γ´ strengthened Ni-Fe base superalloy Inconel 718 (GH4169) is world-widely used under 650 ℃ because of its excellent mechanical properties and metallurgical workability. The effects of main strengthening elements Nb, Ti, Al, minor elements P, S and micro-alloying element Mg on mechanical properties and structure stability have been studied for this alloy at standard heat treatment and long time aging conditions both by means of mechanical tests (tensile, stress rupture and creep, cyclic stress rupture and crack propagation etc.) and detail structure analyses (SEM, TEM, EDS, SAED, phase separation and micro-chemical analyses etc.) and also Auger analyses on grain boundary segregation behavior. For quality improvement of conventional GH4169, Nb content should be controlled at high level (5.4%-5.5%) with low content of S (<10×10-6) and high level of P (but less than 150×10-6) and with micro-alloying element Mg also. For 680 ℃ even higher temperature used modified GH4169 the γ´´/γ´ highest stable temperature must be raised and the grain boundary precipitates should be controlled. Nb content should be still controlled at high level (5.4%-5.5%), Al content should be raised to 1.0%-1.5% and Ti content still be kept at 1%; S must be controlled to less than 10×10-6 and P should be raised to a high level but less than 150×10-6 and also with micro-alloying element Mg. The modified GH4169 to be used at 680 ℃ or even higher temperature has good thermal structure stability and high mechanical properties above 650 ℃.
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Received: 30 August 2010
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| [1] Eiselstein H L. US Pat, 046108, 1962
[2] Xie X S, Dong J X, Smith G D, Patel S, Radavich J F. In: Fuchs G E, eds., Long Term Stability of High Temperature Materials. Pittburgh: TMS, 1999: 135
[3] Radavich J F. In: Loria E A, ed., Superalloy 718–Metallurgy and Applications. Pittsburgh: TMS, 1989: 257
[4] Xie X S, Liu X B, Hu Y H, Tang B, Xu Z C, Dong J X, Ni K Q, Zhu Y X, Tian S S, Zhang L P, Xie W. In: Kissinger R D, ed., Superlloys 1996. Pittburgh: TMS, 1996: 599
[5] Fu S H, Dong J X, Zhang M C, Xie X S. J Univ Sci Technol Beijing, 2007; 29: 237
(付书红, 董建新, 张麦仓, 谢锡善. 北京科技大学学报, 2007; 29: 237)
[6] Dong J X, Thompson R G, Xie X S. In: Loria E A, ed., Superalloy 718, 625, 706 and Derivatives. Pittsburgh: TMS, 1997: 553
[7] Xie X S, Xu Z C, Ni K Q. J Univ Sci Technol Beijing, 1993; 15: 25
(谢锡善, 徐志超, 倪克铨. 北京科技大学学报, 1993; 15: 25)
[8] Xie X S, Dong J X, Zhang M C, Fu S H. Mater Sci Forum, 2007; 546–549: 1281
[9] Dong J X. PhD Thesis, University of Science and Technology of Beijing, 1995
(董建新. 北京科技大学博士学位论文, 1995)
[10] Dong J X, Xie X S, Zhang S H. J Univ Sci Technol Beijing, 1995; 17: 134
(董建新, 谢锡善, 章守华. 北京科技大学学报, 1995; 17: 134)
[11] Dong J X, Xu Z C, Chen M Z, Xie X S, Zhang S H. J Chin Electron Microsc Soc, 1993; (2): 124
(董建新, 徐志超, 陈梦谪, 谢锡善, 章守华. 电子显微学报, 1993; (2): 124)
[12] Dong J X, Zhang M C, Zeng Y P, Xie X S. J Univ Sci Technol Beijing, 2002; 24: 187
(董建新, 张麦仓, 曾燕屏, 谢锡善. 北京科技大学学报, 2002; 24: 187)
[13] Dong J X, Zhang M C, Xie X S. Rare Met Mater Eng, 2004; 33: 1153
(董建新, 张麦仓, 谢锡善. 稀有金属材料与工程, 2004; 33: 1153)
[14] Wang G L, Wu C W, Zhang M C, Dong J X, Xie X S. Rare Met Mater Eng, 2002; 31: 37
(王改莲, 吴翠微, 张麦仓, 董建新, 谢锡善. 稀有金属材料与工程, 2002; 31: 37)
[15] Wang G L, Wu C W, Zhang M C, Xie X S, Lu C F. Metall Anal, 2001; 21: 1
(王改莲, 吴翠微, 张麦仓, 谢锡善, 卢翠芬. 冶金分析, 2001; 21: 1)
[16] Fu S H, Dong J X, Zhang M C, Xie X S. Mater Sci Eng, 2009; A499: 215
[17] Fu S H, Dong J X, Zhang M C, Xie X S. Mater Eng, 2009; 11: 8
(付书红, 董建新, 张麦仓, 谢锡善. 材料工程, 2009; 11: 8)
[18] Xie X S, Dong J X, Chen W, Liang Q, Xu Z C, Ni K Q, Chen M Z. Trans Met Heat Treat, 1997; 18: 37
(谢锡善, 董建新, 陈卫, 梁 强, 徐志超, 倪克铨, 陈梦谪. 金属热处理学报, 1997; 18: 37)
[19] Xie X S, Wang G L, Dong J X, Xu C M, Cao W D, Kennedy R. In: Loria E A, ed., Superalloys 718, 625, 716 and Derivatives 2005, Pittsburgh: TMS, 2005: 179
[20] Xie X S, Dong J X, Zhang M C, Wang G L, Zhao S Q. Advanced Materials and Process for Gas Turbine. Pittburgh: TMS, 2003: 207
[21] Dong J X, Xie X S, Zhao S H. Scr Metall, 1993; 28: 1477
[22] Xie X S, Xu C M, Dong J X, Cao W D, Kennedy R. In: Loria E A, ed., Superalloys 718, 625, 716 and Derivatives 2005, Pittsburgh: TMS, 2005: 287
[23] Fu S H. PhD Thesis, University of Science and Technology of Beijing, 2009
(付书红. 北京科技大学博士学位论文, 2009) |
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