设计了一种新型Fe-Cr-Si合金,并用等离子喷焊方法制备成涂层,借助SEM、SEM-EDX及XRD,研究了Fe-Cr-Si合金涂层的组织形貌、成分分布及其高温氧化行为.结果表明,涂层由大量平直的初生Cr3Si树枝晶和Fc、Cr、Si复杂相基体构成,成分呈梯度分布,界面为冶金态结合.在850℃和大气环境下,其氧化动力学曲线呈抛物线状,氧化膜主要是由Cr2O3、SiO2及尖晶石类氧化物FeCr2O4组成.
参考文献
| [1] | Metals Handbook(vol 2,10th Edn)[M].ASM International,1990 |
| [2] | Shah D M;Berczik D;Anton D L .Appraisal of other silicides as structural materials[J].Materials Science and Engineering,1992,A153:402-409. |
| [3] | 李铁藩.21世纪高温氧化的发展方向[J].材料保护,2000(01):12-15. |
| [4] | Raj SV. .A PRELIMINARY ASSESSMENT OF THE PROPERTIES OF A CHROMIUM SILICIDE ALLOY FOR AEROSPACE APPLICATIONS[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1995(0):583-589. |
| [5] | Cruse T A;Kewkirk J W.Evaluation of methods to produce tough Cr3Si based cornposites[J].Materials Science and Engineering,1997:410-418. |
| [6] | 段刚,赵海云,王华明.激光熔敷Cr3Si/Cr2Ni3Si复合材料涂层组织与耐磨性研究[J].复合材料学报,2002(01):32-36. |
| [7] | 陈民芳,孙家枢,由臣,赵润娴.铬、硅含量对镍基高温合金组织及耐蚀性的影响[J].天津理工学院学报,2000(01):6-10. |
| [8] | 孙家枢 .Ni20CrSi,Ni20CrSiAl在1200℃空气中的氧化行为[J].中国腐蚀与防护学报,1993,13(01):53-58. |
| [9] | Akermalk T .The use of oxygen isotopic labcling to understand oxidation mechanisms[J].Oxidation of Metals,1998,50(3-4):167. |
| [10] | Deal B E;Grove A S .Relationship for the thermal oxidation of silicon[J].Appl Phyo,1965,36(12):3770. |
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%