主要研究一种涂层对喷砂诱发的定向凝固高温合金DZ125L表面再结晶的影响.定向凝固高温合金喷砂处理后,采用电弧离子镀工艺方法于喷砂表面涂覆涂层.结果表明:涂层Zr/ZrO2/NiCoCrAlYSiB对DZ125L合金中喷砂诱发的再结晶具有一定的抑制作用.NiCoCrAlYSiB涂层能够有效抑制合金基体表层氧化,不利于再结晶形成,另外涂层覆盖了合金基体表面,有效减少了表面再结晶的形核.研究还发现,Zr元素的添加可能有利于抑制基体元素的扩散,从而减缓再结晶晶界的迁移.
参考文献
| [1] | Sims C T.Superalloy II[M].New York:John Wiley and Sons,Inc,1987:1-3. |
| [2] | 黄乾尧;李汉康.高温合金[M].北京:冶金工业出版社,2000:4-6. |
| [3] | Bürgel R;Portella P D;Preuhs J.Recrystallization in single crystals of nickel base superalloys[A].Warrendale:TMS,2000:229-238. |
| [4] | 濮晟 .再结晶对DZ40M定向凝固钴基高温合金力学性能的影响[D].南京:南京航空航天大学,2007. |
| [5] | 郑运荣;阮中慈;王顺才.DZ22合金的表层再结晶及其对持久性能的影响[J].金属学报,1995(31):325-330. |
| [6] | Khan T;Caron P;Nakagawa Y G .Mechanical behavior and processing of DS and single crystal superalloys[J].Journal of Metals,1986,38(07):16-19. |
| [7] | 李运菊,张卫方,陶春虎.表层再结晶对DZ4合金板材高温持久性能的影响[J].机械强度,2006(01):135-137. |
| [8] | G. XIE;L. WANG;J. ZHANG .Influence of Recrystallization on the High-Temperature Properties of a Directionally Solidified Ni-Base Superalloy[J].Metallurgical and materials transactions. A, physical metallurgy and materials science,2008(1):206-210. |
| [9] | 孙志国 .DZ17G镍基高温合金再结晶行为研究[D].沈阳:东北大学,2007. |
| [10] | Moriya .Ni-based single crystal alloy having coating film for preventing recrystallization fracture[P].EP pat:1036850A1,2000-09-20. |
| [11] | Corrigan .Single crystal superalloy articles with reduced grain recrystallization[P].EP Pat:1038982A1,2000-09-02. |
| [12] | William .Cycle recovery heat treatment[P].US Pat:5551999,1996-09-03. |
| [13] | Zoltzer .Nickel-base superalloy[P].US Pat:5294239,1994-03-15. |
| [14] | 孙振岩;刘春明.合金中的扩散与相变[M].沈阳:东北大学出版社,2002:150. |
| [15] | G. Xie;J. Zhang;L.H. Lou .Effect of heat treatment atmosphere on surface recrystallization of a directionally solidified Ni-base superalloy[J].Scripta materialia,2008(8):858-861. |
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