根据DD3单晶高温合金的热分析和相分析结果,制定了新的热处理工艺.该优化工艺提高了合金的固溶处理温度,并增加了一级时效制度.研究了优化工艺热处理后DD3合金的蠕变及拉伸性能,对比分析了优化工艺和标准工艺处理后的组织、元素分布和力学性能.结果表明,优化后的热处理工艺改善了合金组织和元素的分布,显著提高了合金的蠕变性能.
参考文献
| [1] | 吴仲棠.DD3单晶涡轮叶片合金[J].航空材料,1987(05):1. |
| [2] | 《中国航空材料手册》编委会.中国航空材料手册,第二卷,变形高温合金-铸造高温合金[M].北京:中国标准出版社,2002 |
| [3] | CETEL A D;DUHL D N.Second-generation nick-base single crystal superalloy[A].Pennsylvania:TMS,1988:235-244. |
| [4] | POLLOCK T M;ARGON A S .Creep behavior of Ni-base single-crystal superalloys[J].Acta Metallurgica Et Materialia,1994,42:1859-1867. |
| [5] | CARON P.High γ'solvus new generation Nickel-base superal-loys for single crystal turbine blade applications[A].Pennsylvania:TMS,2000:737-746. |
| [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] | 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. |
| [8] | CARON P;OHTA Y;NAKAGAWA Y G.Creep deform-ation anisotropy in single crystal superalloys[A].Pennsylvania:TMS,1988:215-224. |
| [9] | G. E. Fuchs .Solution heat treatment response of a third generation single crystal Ni-base superalloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1/2):52-60. |
| [10] | FUCHS G E .Improvement of creep strength of third genera-tion,single crystal superalloy by solution heat treatment[J].Journal of Materials Engineering,2002,11(01):19-25. |
| [11] | CARON P;KHAN T .Improvement in creep strength in a nick-el-base single crystal superanoy by heat treatment[J].Materials Science and Engineering,1983,61:173-181. |
| [12] | 彭志方;任遥遥;梅青松.镍基单晶高温合金CMSX-2原始树状晶中γ'相的定向粗化[J].金属学报,1999(09):902-908. |
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%