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金属学报  2004, Vol. 40 Issue (3): 285-290     
  论文 本期目录 | 过刊浏览 |
初生M6C的形成及其对高钨铸造模具高温合金的影响
郑运荣; 郑 亮;曾 强; 阮中慈
北京航空材料研究院
Formation of Primary M6C Carbide and Its Effect ON Cast Die Superalloys with High Content of Tungsten
ZHENG Yunrong; ZHENG Liang; ZENG Qiang; RUAN Zhongci
Beijing Institute of Aeronautical Materials
引用本文:

郑运荣; 郑亮; 曾强; 阮中慈 . 初生M6C的形成及其对高钨铸造模具高温合金的影响[J]. 金属学报, 2004, 40(3): 285-290 .
, , , . Formation of Primary M6C Carbide and Its Effect ON Cast Die Superalloys with High Content of Tungsten[J]. Acta Metall Sin, 2004, 40(3): 285-290 .

全文: PDF(16311 KB)  
摘要: 高钨铸造合金已用于铸造大型模具, 由于大量初生M6C碳化物的形成使模具变脆, 需探明初M6C的形成条件。实验表明当含碳量超过0.15%时, 合金中易析出初生M6C, 而10%Co起有效的抑制作用. 初生M6C是在1375 ℃时形成的, 它对通过固-液范围的冷却速度十分敏感, 快冷抑制它的形成.铸件中M6C的形成存在明显的尺寸效应, 枝晶间距大于150m时的较厚截面极易形成毫米量级的M6C, 严重的损伤合金的高温强度。 因此对大截面的模具合金, 为防止初生M6C的析出, 合金中最好保持0.04%---0.07%C和10%---15%Co。
关键词 模具高温合金凝固组织持久寿命    
Abstract:Nickel based superalloys with high content of tungsten (W) have been applied to cast the large size die. Because the formation of large amount of primary M 6 C phase embrittles the die, it is necessary to explore the forming condition of primary M 6 C. The experiments prove that the alloys containing carbon content higher than 0.15% (mass fraction) tend to precipitate primary M 6 Ccarbide and 10% Co can restrict the formation of M 6 C effectively. The primary M 6 C forms at 1375℃. The cooling rate between the solid and liquid temperature range can influence the precipitation of this phase sensitively. Rapid cooling retard the formation of M 6 C obviously. The section size effect of the formation of M 6 C exists in castings. For a heavy section possessing dendrite spacing higher than 150m, it is very easy to form M 6 C with a millimeter magnitude, which damages the high temperature strength of alloys. To prevent the precipitation of M 6 C in large size section die, the composition of alloy is recommended to maintain at the level of 0.04%---0.07% C and 10%---15% Co.
Key wordsdie superalloy    solidification microstructure    stress--rupture life
收稿日期: 2003-03-31     
ZTFLH:  TG132.32  
[1] Freche J C, Waters W J. U S Patent No. 3620718, 1971
[2] Waters W J, Frecbe J C. NASA-TN-D-7648, 1974
[3] Waters W J, Freche J C. Met Prog, 1975; 3:57
[4] Glenny R J E, Northwood J E, Smith A B. Int Metall Rev, 5; 20:3
[5] The Editorial Committee of Superalloys Handbook. Superalloys Handbook, Beijing: Metalllurgy Industry Press, 1972:293(高温合金手册编写组.高温合金手册.北京:冶金工业出版社,1972:293)
[6] Zheng Y R., Zhang D T. Color Metallographie Investigation of Superalloys and Steels. Beijing: Defenee Industry Press, 1999:163(郑运荣,张德堂.高温合金与钢的彩色金相研究.北京:国防工业出版社,1999:163)
[7] Fernandez R, Lecomte J C, Kattamis T Z. Metall Trans, 1978; 9A:1381
[8] Sims C T, Hagel W C. The Superalloys. New York: John Wiley & Sons, 1972; 479
[9] Koizumi Y, Yamazaki M, Harada H. Trans Natl Res Inst Met, 1980; 22(3) : 32
[10] Harada H, Murakami H. In: Saito T ed, Computational Materials Design, Berlin: Springer, 1999:39
[11] Hockin J. US Patent No. 3677747, 1972
[12] Harris K, Erickson G L, Sikkenga S L, Brentnall W D, Aurrecoechea J M, Kubarych K G. In: Antolovich S D, Stusrud R W, Mackay R A, Anton D L, Khan T, Kissinger R D, Klarstrom D L eds, Superalloys 1992, Pennsylvania: TMS, 1992:297
[13] Maldini M, Marchionni, Nazmy M, Staubli M, Osinkolu G. In: Kissinger R D, Deye D J, Anton D L, Cetel A D, Nathal M V, Pollock T M, Woodford D A eds, Superalloys 1996, Pennsylvania: TMS, 1996:327p
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