利用物理化学相分析方法研究第一代单晶高温合金DD3的相特征.通过相萃取分析热处理前后γ′相和碳化物相的组成、含量及其结构式,并对比分析不同状态下DD3合金的强化相粒度、基体相成分及元素分配行为的变化.热处理前后的相特征分析表明,热处理不仅提高DD3合金γ′相含量、减小γ′相粒度,还改变合金元素的分配行为,提高γ′相的强度和稳定性.热处理的过程是γ′相得到强化的过程.
参考文献
| [1] | R. JAYARAM;M. K. MILLER .INFLUENCE OF PHASE COMPOSITION AND MICROSTRUCTURE ON THE HIGH TEMPERATURE CREEP PROPERTIES OF A MODEL SINGLE CRYSTAL NICKEL-BASE SUPERALLOY: AN ATOM PROBE/AEM STUDY[J].Acta Metallurgica et Materialia,1995(5):1979-1986. |
| [2] | CARON P.High γ′ solvus new generation nickel base superalloys for single crystal turbine blade applications[A].Pennsylvania:TMS,2000:737-746. |
| [3] | TIN S;YEH A C;OFORI A P.Atomic partitioning of Ruthenium in Ni base superalloys[A].Pennsylvania:TMS,2004:735-741. |
| [4] | MURAKUMO T;KOBAYASHI Y;KOIZUMI Y.Creep behavior of Ni base single crystal superalloys with various γ′ volume fraction[J].Acta Materials,2004(52):3737-3744. |
| [5] | ZHANG J X;MURAKUMO T;KOIZUMI Y et al.Dependence of creep strength on the interfacial dislocations in a fourth generation SC superalloy TMS 138[J].Scripta Materialia,2003,48:287-294. |
| [6] | MURAKUMO T;KOIZUMI Y;KOBAYASHI Y.Creep strength of Ni base single crystal superalloys on the γ/γ′ tie line[A].Pennsylvania:TMS,2004:155-162. |
| [7] | 吴仲棠.DD3单晶涡轮叶片合金[J].航空材料,1987(05):1. |
| [8] | 《中国航空材料手册》编辑委员会.中国航空材料手册,变形高温合金 铸造高温合金[M].北京:中国标准出版社,2002 |
| [9] | BLAVETTE D;BOSTEL A .Phase composition and long range order in γ′ phase of nickel base single crystal superalloys CMSX 2:An atom probe study[J].Acta Metallurgica,1984,32:811-816. |
| [10] | POLLOCK T M;ARGON A S .Directional coarsening in nickel base single crystal with high volume fractions of coherent precipitates[J].Acta Metallurgica Et Materialia,1994,42:1859-1874. |
| [11] | SCHMIDT R;FELLER KNIEPMEIER .Effect of heat treatments on phase chemistry of nickel base superalloy SRR99[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1992,23:745-757. |
| [12] | MURAKAMI H;SAITO Y;HARADA H.Determination of atomistic structure of Ni base single crystal superalloys using Monte Carlo simulations and atom probe microanalyses[A].Pennsylvania:TMS,1996:249-257. |
| [13] | 彭志方,刘攀.一种测算镍基合金γ′相亚点阵元素浓度及点阵常数的方法[J].金属学报,2004(06):569-573. |
| [14] | 骆宇时 .Re在单晶高温合金中的强化机理[D].北京:北京航空材料研究院,2006. |
| [15] | MINAMINO Y;JUNG S B;YAMANE T et al.Diffusion of cobalt,chromium,and titanium in Ni3Al[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1992,23A:2783-2790. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%