Study on the Strength of the Plasma Sprayed Ceramic Coating After Thermal Cycle Test

等离子喷涂陶瓷涂层热循环试验后的强度研究

• 批准号: 03650593
• 负责人: SEO Kenji
• 金额: $ 1.47万
• 依托单位: HIMEJI INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650593/
• 关键词: ceramic; sprayed coating; thermal stress; thermal cycle test; J-integral; joint of dissimilar materials; BEM; BEM; 残留応力; 熱応力

The purpose of this study is to investigate the strength of the plasma sprayed alumina coating after thermal cycle test. A summary of the obtained results are as follows:(1) An analysis connected with the thermal stress and strain during thermal spraying and thermal cycle test are performed usaing the theory of elasticity and a boundary element method. If the test specimen are composed of the substrate with thethickness being 4 times, and the length and the width being 8 times as large as a thickness of sprayed coating, the thermal stress during thermal cycle test are the same as that of sprayed substrate in working field.(2) The thermal cycle test of plasma sprayed alumina coating which are deposited on the stainless substrate are carried out. The number of thermal cycle to failure of alumina coating are affected by the edge shape of coating.(3) The effect of dominant parameters ( the difference of the coefficient of linear thermal expansion between the ceramic coating and the substrate, the ratio of Young s modulus of both materials) on the J integral after thermal cycle test are clarified by numerical simulation.

这项研究的目的是研究热周期测试后血浆喷涂氧化铝涂层的强度。所获得的结果的摘要如下：（1）在热喷涂和热周期测试过程中与热应力和应变相关的分析进行了美国进行弹性理论和边界元素方法的理论。如果测试标本由底物组成，则具有4次，并且宽度的长度和宽度是喷涂涂层的厚度的8倍，则热循环测试中的热应力与工作场中喷雾底物的热应力相同。（2）等离子喷涂的铝涂层的热周期测试，这些铝涂层的均未固定在固定均未固定下均为固定物。氧化铝涂层失败的热周期数受涂层的边缘形状的影响。（3）主要参数的影响（陶瓷涂层与底物之间线性热膨胀系数的差异，两种材料的Young S Modulus在两种材料的Young S Modulus之比）对J积分测试后的J积分测试的比率是通过数字模拟阐明的。

项目成果

瀬尾健二ほか: "溶射部材に生じる界面端部の残留応力" 溶接学会論文集. 9. 430-436 (1991)

Kenji Seo 等人：“热喷涂部件界面边缘的残余应力”，日本焊接学会会议录，9. 430-436 (1991)。

瀬尾 健二ほか: "溶射部材に生じる界面端部の残留応力" 溶接学会論文集. 9. 430-436 (1991)

Kenji Seo 等人：“热喷涂部件界面边缘的残余应力”，日本焊接学会会议录，9. 430-436 (1991)。

T. Terasaki, T. Akiyama, T. Hirai and K. Seo: "Study of Residual Stress in the Vicinity of Interface Corner of Sprayed Coating" Quarterly Journal of the Japan Welding Society. Vol.9 No.3. 430-436 (1991)

T. Terasaki、T. Akiyama、T. Hirai 和 K. Seo：《喷涂层界面角附近残余应力的研究》日本焊接学会季刊。

瀬尾健二ほか: "温度変化を受ける異種材接合部のJ積分" 溶接学会全国大会講演概要 第51集. 268-269 (1992)

Kenji Seo 等人：“受温度变化影响的异种材料接头的 J 积分”全国焊接学会会议演讲摘要，第 51 卷 268-269（1992 年）

瀬尾 健二ほか: "き裂を含む異種接合材のJ積分" 溶接学会論文集. 10. 429-433 (1992)

Kenji Seo 等人：“含有裂纹的异种接头的 J 积分”日本焊接学会会议记录 10. 429-433 (1992)。