利用三维原子探针(3DAP),SEM,TEM和相分离方法,研究了5种Hf含量的FGH97粉末冶金高温合金中Hf在γ基体、γ'相和MC相中的分配,以及Hf对γ '和MC析出相的数量、组成和形貌的影响.结果表明:Hf主要进入γ'相和MC型碳化物,γ '相变为(Ni,Co)3(Al,Ti,Nb,Hf),MC碳化物变为(Nb,Ti,Hf)C.随着合金中Hf含量的增加,Hf进入γ'相的比例基本不变,进入MC相的比例逐渐增大,进入γ相的比例逐渐减小,即Hf在γ '和MC相的分配比R1逐渐减小,在γ'和γ相的分配比R2逐渐增大,R1和R2的平均值分别为1∶0.1和1∶0.05,这表明Hf主要分配在γ'相中,其次分配在MC相中.Hf促进γ'相和MC相析出,影响γ'相的尺寸和形貌,对MC碳化物的尺寸和形貌的影响并不明显.
参考文献
| [1] | Duhl D N,Sulivan C P.JOM,1971:23:38 |
| [2] | Kotval P S,Venables J D,Calder R W.Metall Trans,1972; 3:453 |
| [3] | Wang L B,Chen R Z,Wang Y P.Aero Mater,1982; 2:1(王罗宝,陈荣章,王玉屏.航宅材料,1982; 2:1) |
| [4] | Zheng Y R,Cai Y L Ruan Z C,Ma S W.J Aero Mater,2006; 26:25(郑运荣,蔡玉林,阮中慈,马书伟.航空材料学报,2006; 26:25) |
| [5] | Belov A F,Anoshkin N F,Fatkullin O S.Heat Resistant Steel and Nickel Base High Temperature Alloy.Moscow:Science Press,1984:31 |
| [6] | Radavich J,Carneiro T,Furrer D.In:Reed R.C,Green K A,Caron P eds.,Superalloys 2008.Pennsylvania:TMS,2008:63 |
| [7] | Hardy M C,Zirbel B,Shen G.In:Green K A,Pollock T M,Haradra H eds.,Superalloys 2004.Pennsylvania:TMS,2004:83 |
| [8] | Zhen B L,Zhang S J.Central Iron Steel Res Inst Technol Bull,1981; 1(1):65(甄宝林,张绍津.钢铁研究总院学报,1981;1(1):65) |
| [9] | Maslekov S B,Burova N N,Makulov O V.Met Sci Heat Treat,1980; 22(4):283 |
| [10] | Zimina L N,Burova N N,Makushok O V.Met Sci Heat Treat,1986; 28(2):130 |
| [11] | Amouyal Y,Seidman D N.Acta Mater,2011; 59:3321 |
| [12] | Miner R V.Metall Trans,1977; 8A:259 |
| [13] | Flageolet B,Villechaise P,Jouiad M.In:Green K A,Pollock T M,Haradra H eds.,Superalloys 2004.Pennsylvania:TMS,2004:371 |
| [14] | Starink M J,Reed P A.Mater Sci Eng,2008; A491:279 |
| [15] | Department of chemical analysis,Central Iron and Steel Research Institute.New Metall Mater,1977; (5):60(钢铁研究总院化学分析室.新金属材料,1977; (5):60) |
| [16] | Markiv V Y,Burnashova V V.IZV Akad Nauk SSSR Met,1969; (6):113 |
| [17] | Samsonov G V,Vinickji I M.Refractory Compound.2nd Ed.,Moscow:Metallurgy Industry Press,1976:150 |
| [18] | Doi M,Miyazaki T,Wakatsuki T.Mater Sci Eng,1984;67:247 |
| [19] | Ardell A J.Acta Metall,1968; 16:511 |
| [20] | Xia P C,Yu J J,Sun X F,Guan H R,Hu Z Q.J Shandong Univ Sci Technol (Nat Sci),2009; 28:51(夏鹏成,于金江,孙晓峰,管恒荣,胡壮麒.山东科技大学学报(自然科学版),2009; 28:51) |
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