|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
微量元素Hf对镍基粉末高温合金FGH97显微组织的影响
DOI: 10.11900/0412.1961.2015.00384, PP. 1219-1226
Keywords: 粉末高温合金,FGH97,Hf,γ’相形态稳定性,MC型碳化物
Abstract:
利用SEM和物理化学相分析方法研究了5种Hf含量的FGH97粉末高温合金中γ’相和MC型碳化物形貌、化学组成及含量.结果表明Hf促进γ’相和MC相析出,改变γ’相和MC相的化学组成,对MC相的尺寸和形貌影响不大,显著影响γ’相的尺寸和形貌,促使γ’相的形态失稳,导致立方状γ’相发生分裂,使γ’相更快地进入稳定的立方状择优形态.在FGH97合金中添加Hf,可通过改变错配度d,从而改变γ’相发生分裂的临界尺寸Dc.建立了Dc与Hf含量w(Hf)的关系式Dc=315.4+640.2w(Hf)-358.2[w(Hf)]2.随着Hf含量的增加,|d|逐渐变小,Dc增大.γ’相长大到临界尺寸时,γ’相由立方状分裂为八重小立方体状.
| [1] | Evans D J, Eng R D. In: Hausner H H, Antes H W, Smith G D eds., Modern Developments in Powder Metallurgy. Vol.14, Princeton: MPIF and APMI, 1982: 51
|
| [2] | Белов А Ф, Аношкин Н Ф, Фаткуллин О Х. In: Банных О А ed., Жаропрочные и Жаростойские Стали и Сплавы на Никелевой Основе, Москва: Наука, 1984: 31
|
| [3] | Radavich J, Carneiro T, Furrer D, Lemsky J, Banik A. Chin J Aeronau, 2007; 20: 97
|
| [4] | Radavich J, Furrer D, Carneiro T, Lemsky J. In: Reed R C, Green K A eds., Superalloys 2008, Pennsylvania: TMS, 2008: 63
|
| [5] | Miner R V. Metall Trans, 1977; 8A: 259
|
| [6] | Larson J M, Volin T E, Larson F G. In: Braun J D, Arrowsmith H W, McCall J L eds., Microstructural Science. New York: American Elsevier Pub, 1977: 209
|
| [7] | Wang Y, Chen L Q, Khachaturyan A G. Acta Metall Mater, 1993; 41: 279
|
| [8] | Qiu Y Y. Acta Mater, 1996; 44: 4969
|
| [9] | Yoo Y S, Yoon D Y, Henry M F. Met Mater, 1995; 1: 47
|
| [10] | Qiu Y Y. J Alloys Compd, 1998; 270: 145
|
| [11] | Flageolet B, Villechaise P, Jouiad M. In: Green K A, Pollock T M, Haradra H eds., Superalloys 2004, Pennsylvania: TMS, 2004: 371
|
| [12] | Starink M J, Reed P A S. Mater Sci Eng, 2008; A491: 279
|
| [13] | Zhang Y W, Liu J T. Mater Chin, 2013; 32(1): 1 (张义文, 刘建涛. 中国材料进展, 2013; 32(1): 1)
|
| [14] | Zhang Y W, Wang F M, Hu B F. Rare Met Mater Eng, 2012; 41: 989 (张义文, 王福明, 胡本芙. 稀有金属材料与工程, 2012; 41: 989)
|
| [15] | Zhang Y W, Hu B F. Acta Metall Sin, 2015; 51: 967 (张义文, 胡本芙. 金属学报, 2015; 51: 967)
|
| [16] | Doi M, Miyazaki T, Wakatsuki T. Mater Sci Eng, 1984; 67: 247
|
| [17] | Doi M, Miyazaki T, Wakatsuki T. Mater Sci Eng, 1985; 74: 139
|
| [18] | Miyazaki T, Imamura H, Mori H, Kozakal T. J Mater Sci, 1981; 16: 1197
|
| [19] | Miyazaki T, Imamura H, Kozakai T. Mater Sci Eng, 1982; 54: 9
|
| [20] | Khachaturyan A G, Semenovskaya S V, Morris Jr J W. Acta Metall, 1988; 36: 1563
|
| [21] | Xia P C, Yu J J, Sun X F, Guan H R, Hu Z Q. J Shandong Univ Sci Technol (Nat Sci), 2009; 28(1): 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(1): 51)
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
