喷射沉积SiC<sub>P</sub>/FVS0612薄板微观组织及力学性能

徐政坤; 陈振华; 郝亮; 贺毅强; 陈鼎

复合材料 | 浏览量 : 0 下载量: 62 CSCD: 2

导出
分享
收藏
专辑

喷射沉积SiC_P/FVS0612薄板微观组织及力学性能
Microstructure and Mechanical Properties of Spray-deposited Heat Resistant SiC_P/FVS0612 Composite Sheet
2008年第9期页码：710-712
纸质出版日期： 2008 ，
DOI：

扫描看全文

[1]徐政坤,陈振华,郝亮,贺毅强,陈鼎.喷射沉积SiC_P/FVS0612薄板微观组织及力学性能[J].特种铸造及有色合金,2008(09):710-712+654-655.

Xu Zhengkun1, Chen Zhenhua1, Hao Liang1, et al. Microstructure and Mechanical Properties of Spray-deposited Heat Resistant SiC_P/FVS0612 Composite Sheet[J]. Special Casting & Nonferrous Alloys, 2008,(9):710-712.
[1]徐政坤,陈振华,郝亮,贺毅强,陈鼎.喷射沉积SiC_P/FVS0612薄板微观组织及力学性能[J].特种铸造及有色合金,2008(09):710-712+654-655. DOI：

Xu Zhengkun1, Chen Zhenhua1, Hao Liang1, et al. Microstructure and Mechanical Properties of Spray-deposited Heat Resistant SiC_P/FVS0612 Composite Sheet[J]. Special Casting & Nonferrous Alloys, 2008,(9):710-712. DOI：

摘要

利用XRD、OM和TEM等方法研究了喷射沉积-挤压-轧制SiC颗粒增强FVS0612（SiCP/FVS0612）薄板的微观结构及力学性能。试验结果表明

制备的SiCP/FVS0612薄板具有较高的力学性能

常温下

σb=420MPa

σ0.2=405MPa

δ=4.5%;在315℃时

σb=229MPa

σ0.2=130MPa

δ=3.5%;在400℃时

σb=141MPa

σ0.2=131MPa

δ=3.3%。该复合材料在400℃退火200h

硬度没有明显下降。微观组织分析表明:类球状细小弥散的Al12（Fe

V）3Si相的生成是该材料具有优异耐热性能的主要原因

此外

SiC颗粒的加入对提高该复合材料的耐热性能也有很重要的作用。

Abstract

Microstructure and mechanical properties of spray deposition-extrusion-rolling SiCP/FVS0612 composite sheet were investigated by XRD（X-ray diffraction）

OM （optical microscope） and TEM（transmission electron microscope）. The results reveal that tensile strength

yield strength and elongation of the prepared SiCP/FVS0612 composite sheet are 420 MPa

405 MPa

4.5%

respectively

at room temperature and 229 MPa

130 MPa and 3.5%

respectively

at 315 ℃ as well as 141 MPa

131 MPa and 3.3%

respectively

at 400 ℃

showing acceptable mechanical properties. In addition

the decrement of hardness of the composite sheet can be ignored with annealing at 400 ℃ for 200 h. Microstructural observation reveals that the desirable heat resistance is mainly attributed to the creation of fine spheroidal dispersive Al12（Fe

V）3Si phase in the composite sheet. In addition

SiC particle addition can play positive role for improvement of heat resistance of the composite sheet also.