X-ray Study on Thermal-Shock-Fatigue Property of Functionally Gradient Materials

功能梯度材料热震疲劳性能的X射线研究

• 批准号: 06650763
• 负责人: HANABUSA Takao
• 金额: $ 1.15万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650763/
• 关键词: Spray coating; Laser spraying; Plasma spraying; FGM; Laminated layr; Residual stress; Thermal stress; X-ray stress measurement; レーザ溶射; X線応力測定; 熱衝撃疲労

The present study investigated a stress state in the layr coated by plasma-spraying and laser-spraying. Aluminum and stainless steel layrs and TiN layr were prepared by laser spraying. Functionally-gradient-layr of NiAl and Al_2O_3 was prepared by prasma spraying. Residual stresses and thermal stresses were measured by the X-ray stress measuring method. The subjects which were investigated are as follows :1. Residual stresses after annealing of the metal layrs2. Residual stresses developed by grainding of Al_2O_3 layr and NiAl/Al_2O_3 composite layr3. In-situ thermal stresses developed by loadings on Al_2O_3 layr and NiAl/Al_2O_3 composite layr4. Residual stresses developed in the TiN layr after thermal shock by laser-beam irradiationFinite element method revealed that microstructure in the layr should be careflly considered in order to calculate stress state in the spray-coating layr.

本文研究了等离子喷涂和激光喷涂涂层的应力状态。采用激光喷涂技术制备了铝、不锈钢涂层和TiN涂层。采用等离子喷涂法制备了NiAl和Al_2O_3功能梯度层。用X射线应力测量法测量了残余应力和热应力。研究对象如下：1.金属层退火后的残余应力2. Al_2O_3层和NiAl/Al_2O_3复合层晶化产生的残余应力。加载时Al_2O_3层和NiAl/Al_2O_3复合层产生的原位热应力。本文用有限元法计算了TiN涂层在激光热冲击后产生的残余应力，结果表明，在计算喷涂层的应力状态时，应仔细考虑涂层的微观结构。

项目成果

M.Nishida, T.Hanabusa and H.Fujiwara: "Measurement of Residual Stress in Plasma Spray Coating Layrs" Proceedings of the Fourth International Conference on Residual Stresses. 767-776 (1994)

M.Nishida、T.Hanabusa 和 H.Fujiwara：“等离子喷涂层中残余应力的测量”第四届国际残余应力会议论文集。

Masayuki Nishida: "Measurement of Residual Stress in Plasma Spray Coating Layers" Proceedings of Fourth International Conference on Residual Stresses. 767-776 (1994)

Masayuki Nishida：“等离子喷涂层中残余应力的测量”第四届国际残余应力会议论文集。

M.Nishida and T.Hanabusa: "Measurement of Residual Stress and Thermal Stress in Sprayd Coating Layrs" Thermal Spraying-Current Status and Future Trends-ITSC'95. Vol.2. 915-920 (1995)

M.Nishida 和 T.Hanabusa：“喷涂层中残余应力和热应力的测量”热喷涂 - 当前状态和未来趋势 - ITSC95。

M.Nishida and T.Hanabusa: "X-ray Stress Measurement on Spraying Layrs by Bending and Thermal Cycling" Kohongakkai-shi. Vol.21, Supplement. 248-256 (1995)

M.Nishida 和 T.Hanabusa：“通过弯曲和热循环对喷涂层进行 X 射线应力测量”Kohongakkai-shi。

Masayuki Nishida: "Measurement of Residual Stress and Thernal Stress in Sprayed Coating Layers" Thermal Spraying - Current States and Future Trends-, IPSC ´95. Vol.2. 915-920 (1995)

Masayuki Nishida：“喷涂层中残余应力和热应力的测量”热喷涂 - 当前状态和未来趋势 -，IPSC ´95，第 2 卷（1995 年）。