TiCx/NiAl复合材料界面纳米硬度与弹性模量分布

机械工程材料, 2003, 27(3): 8-15. doi: 10.3969/j.issn.1000-3738.2003.03.003

TiCx/NiAl复合材料界面纳米硬度与弹性模量分布

华文深 ^1, , 吴杏芳 ^2, , 陆华 ^3, , 沈电洪 ^4, , ^5,

1.北京科技大学材料物理系,北京,100083

2.北京科技大学材料物理系,北京,100083

3.中国科学院物理研究所表面物理国家重点,实验室,北京100080

4.中国科学院物理研究所表面物理国家重点,实验室,北京100080

5.以色列本-古里安大学材料工程系,84105

基金项目: 中-以合作项目(ZYJ01-01)

关键词：微结构 , 纳米硬度 , 弹性模量 , 复合材料 , 界面

Distributions of Nanohardness and Elastic Modulus near the Interface of TiCx/NiAI Composites

对C、Ti比x分别为0.6、0.75、0.8和0.9的四种不同TiCx/NiAl复合材料进行扫描电镜研究,发现陶瓷颗粒随着C、Ti比的增加而变小,并且Ti元素向金属相存在较强的扩散,而Ni和Al元素几乎没有向陶瓷相中扩散,扩散形成了两相界面处直接的原子结合,提高了复合材料相界面结合的强度和韧性.利用纳米压痕技术得出材料相界面附近的纳米硬度H和弹性模量E呈连续梯度分布,C、Ti比为0.75的复合材料相界面处的纳米硬度和弹性模量值较大.

参考文献

[1]	Noebe R D;Bowman R R;Nathal M V .Physical and mechamical properties of the B2 compound NiA1[J].International Materials Reviews,1993,4(38):193-232.
[2]	Z.P.Xing;J.T.Guo .Microstructure and Mechanical Behavior of the NiAl-TiC In Situ Composite[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1997(4):1079-1087.
[3]	Subramanian R;Schneibel J H;Alexander K B et al.FeAl/TiC composites by pressureless melt infiltration-microstructure and mechanical properties[J].Science Materials,1996,5(05):583-588.
[4]	Miyahara K;Ohmura T;Matsuoka S;Nagashima N .Evaluation of mechanical properties in nanometer scale using AFM-based nanoindentation tester[J].Nanostructured Materials,1999(5/8):1049-1052.
[5]	Pethica J B;Hutchings R;liver W C .Hardness measurement at penetration depths as small as 20nm[J].Philosophical Magazine,1983,4(04):593-606.
[6]	Oliver W C;Pharr G M .An improved technique for deter mining hardness and elastic modulus using load and displacement sensing indentat ion experiments[J].Journal of Materials Research,1992,6(07):1564-1583.
[7]	HABELITZ S;Marshall S J;Marshall Jr G W.Mechanical properties of human dental enamel on the nanometre scale[J].Achives of Oral Biology,2001(46):173-183.
[8]	Randall N X;JuliaSchmutz C;Soro J M.Combining scanning force microscopy with nanoindentation for more complete characterization of bulk and coated materials[J].Surface and Coatings Technology,1998(108-109):489-495.
[9]	Zhang L M;Liu J;Yuan Y Z.Properties of TiC-NiaAl composites and structural optimization of TiC-NisAl functionally gradient materials[J].Materials Science and Engineering,1995(203A):272-277.
[10]	Rodel J;Prielipp H;Claussen N et al.NisA1/A12O3 composites with interpenetrating networks[J].Science Metall Mater,1995,5(05):843-848.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

TiCx/NiAl复合材料界面纳米硬度与弹性模量分布

Distributions of Nanohardness and Elastic Modulus near the Interface of TiCx/NiAI Composites

参考文献