为了利用常规工业原料制备低成本的超高温铁基结构合金,研究了硅对铁基(Fe-Cr-Ni-Al)双相高温合金组织和性能的影响.硅在合金中的固溶促进了碳化物的析出,过量的硅会导致合金中碳化物明显粗化,进而析出网状G相.随着硅含量的增加,合金1 250℃的抗拉强度明显提高.但是硅含量超过1.0%时,强度则明显降低.硅含量的增加有效地提高了合金在1 250℃大气环境中的抗氧化性能.综合考虑Fe-Cr-Ni-Al双相高温合金的强度和高温抗氧化性能,适宜的硅含量为1.5%.
参考文献
| [1] | Basa S N;Yurek GJ .[J].Oxidation of Metals,1991,36(3-4):281-296. |
| [2] | Rundell G;McConnel J .[J].Oxidation of Metals,1991,36(3-4):253-267. |
| [3] | Fijikawa H.[J].Sumitomo Search,1983(28):41-51. |
| [4] | iu J C;Wang Z F;PanZW .[J].Zeitschrift fur Metallkunde,1995,86(09):638-642. |
| [5] | Elmrab;Aives L C;Da Silna M F et al.Nuclear Instru ments and Methods in Physics Research[J].Section B:Beam Interactions with Materials an d Atoms,2001,181:394-398. |
| [6] | Antoni L .[J].Materials Science Forum,2001,369-372:345-352. |
| [7] | Kamada K;Nakamura M;Horie H .[J].Journal of the Japan Society of Powder and Powder Metallurgy,2001,48(09):810-815. |
| [8] | Hsu Hung-wen;Tsa Wen-tai .[J].Materials Chemistry and Physics,2000,64(02):147-155. |
| [9] | Otero E;Hierro M P;Gomez C et al.[J].Surface and Coatings Technology,1998,1-3:127-131. |
| [10] | Gutierrez A.;Trujillo FJP.;Hierro MP.;Pedraza F.;Lopez MF. .Effects of Ce, Mo and Si ion implantation on the passive layer composition and high-temperature oxidation behaviour of AISI 304 stainless-steel studied by soft x-ray absorption spectroscopy[J].Surface and Interface Analysis: SIA: An International Journal Devoted to the Development and Application of Techniques for the Analysis of Surfaces, Interfaces and Thin Films,2000(1):130-134. |
| [11] | Birks N;Meire G H.Introduction to High-Temperature Oxidation of Metals (Chinese Version)[M].北京:冶金工业出版社,1989 |
| [12] | Bennett M J;Roberts A C;Spindler M W et al.[J].Materials Science and Technology,1990,6:56-68. |
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%