镍基定向凝固合金表面涂层力学参数测量

1.清华大学,航天航空学院,北京,100084

2.清华大学,航天航空学院,北京,100084

3.北京航空材料研究院,北京,100095

4.北京航空材料研究院,北京,100095

5.清华大学,航天航空学院,北京,100084

基金项目: 国家重点基础研究发展计划(973计划)(2004CB619304) 国家自然科学基金(50371042;10472049)

Mechanical Parameter Measurement of Coating on Nickel-Based Directionally Solidified Superalloy

针对所研究的镍基定向凝固合金表面高温防护涂层的厚度远大于一般涂层的特点,提出一种简捷方便的新方法测量涂层的硬度和弹性模量,便于同时研究涂层表面和系统界面对测量结果的影响.并通过传统纳米压痕仪的测量结果,以及镀在另一种定向凝固合金表面的同一种涂层测量结果间的对比,验证了试验结果的正确性.

[1]	Sung-Ryong Kim;John A. Nairn .Fracture mechanics analysis of coating/substrate systems part II: experiments in bending[J].Engineering Fracture Mechanics,2000(5):595-607.
[2]	李家宝,覃明,马素媛,陈昌荣.薄膜几种重要力学性能的评价[J].理化检验-物理分册,2003(09):441-446.
[3]	OLIVER W C;PHARR G M .An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J].Journal of Materials Research,1992,7(06):1564-1583.
[4]	Seitzman LE. .Mechanical properties from instrumented indentation: Uncertainties due to tip-shape correction[J].Journal of Materials Research,1998(10):2936-2944.
[5]	Ranjana Saha;William D. Nix .Effects of the substrate on the determination of thin film mechanical properties by nanoindentation[J].Acta materialia,2002(1):23-38.
[6]	T. Y. Tsui;G. M. Pharr .Substrate effects on nanoindentation mechanical property measurement of soft films on hard substrates[J].Journal of Materials Research,1999(1):292-301.
[7]	KING R B .Elastic analysis of some punch problems for a layered medium[J].International Journal of Solids and Structures,1987,23(12):1657-1664.

上一张下一张

计量

作者相关

文章评分