运用金相、扫描、热力学与动力学计算的方法,对真空感应冶炼GH4700镍基高温合金中Al2O3+TiN 复合析出行为进行研究,结果表明:Ti、N、O的偏析因子对冷速不敏感;合金中以Al2O3+ TiN复合夹杂为主;纯TiN只能在固相分数大于95％的两相区开始生成,尺寸约为4.5～5μm,与实际观察的尺寸基本吻合,而对于Al2O3+ TiN复合夹杂物,尺寸及分布范围较纯TiN析出物要宽.
参考文献
| [1] | R. Viswanathan;J.F. Henry;J. Tanzosh .U.S. Program on Materials Technology for Ultra-Supercritical Coal Power Plants[J].Journal of Materials Engineering and Performance,2005(3):281-292. |
| [2] | Christopher J. Cowen;Paul E. Danielson;Paul D. Jablonski .The Microstructural Evolution of Inconel Alloy 740 During Solution Treatment, Aging, and Exposure at 760℃[J].Journal of Materials Engineering and Performance,2011(6):1078-1083. |
| [3] | VISWANATHAB R;COLEMAN K;RAO U .Materials for ultra-supercritical coal-fired power palnt boilers[J].International Journal of Pressure Vessels and Piping,2006,83(11-12):778-783. |
| [4] | 谢锡善,赵双群,董建新,张麦仓.超超临界电站用Inconel 740镍基合金的组织稳定性及其改型研究[J].动力工程学报,2011(08):638-643. |
| [5] | QUN Z.S;SHAN X.X;SMITH C.D et al.Microstructure stability and mechanical properties of a new nickel-based superalloy[J].Materials Science and Engineering,2003,A355:96-105. |
| [6] | Shuangqun Zhao;Xishan Xie;Gaylord D. Smith .Gamma prime coarsening and age-hardening behaviors in a new nickel base superalloy[J].Materials Letters,2004(11):1784-1787. |
| [7] | N.D. Evans;P.J. Maziasz;R.W. Swindeman .Microstructure and phase stability In INCONEL alloy 740 during creep[J].Scripta materialia,2004(6):503-507. |
| [8] | 赵双群,董建新,张麦仓,谢锡善.新型镍基高温合金在950℃和1000℃的氧化行为[J].稀有金属材料与工程,2005(02):208-211. |
| [9] | 曲英.炼钢学原理[M].北京:冶金工业出版社,1994 |
| [10] | Lehmann J.;Gaye H.;Rocabois P. .Kinetic model of non-metallic inclusions' precipitation during steel solidification[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2001(1):61-71. |
| [11] | BAHRI OZTURK;R. MATWAY;R.J. FRUEHAN .Thermodynamics of Inclusion Formation in Fe-Cr-Ti-N Alloys[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,1995(3):563-567. |
| [12] | 黄希祜.钢铁冶金原理[M].北京:冶金工业出版社,2010 |
| [13] | 余新昌.金属中的氮[M].北京:冶金工业出版社,1981 |
| [14] | WANG C.Y;BECKERMANN C .A unified solute diffusion model for columanar and equiaxed dendritic alloy solidification[J].Materials Science and Engineering,1993,A171:199-211. |
| [15] | Hiroki GOTO;Ken-ichi MIYAZAWA;Wataru YAMADA .Effect of Cooling Rate on Composition of Oxides Precipitated during Solidification of Steels[J].ISIJ International,1995(6):708-714. |
| [16] | 闵志先,沈军,冯周荣,王灵水,刘林,傅恒志.定向凝固DZ125合金的溶质分配系数及偏析行为的研究[J].金属学报,2010(12):1543-1548. |
| [17] | 仲博颖,王玲,张麦仓,董建新.冷却速度对Waspaloy合金凝固过程中偏析和液体密度的影响[J].北京科技大学学报,2008(07):760-764. |
| [18] | 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006 |
| [19] | 陈家祥.炼钢常用图标数据手册[M].北京:冶金工业出版社,2010 |
| [20] | 曲英.炼钢过程的物理化学计算[M].北京:冶金工业出版社,1993 |
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%