【摘要】：目的通過研制熱障涂層沖蝕服役環(huán)境的模擬裝置,來研究沖蝕失效機制。方法通過研制模擬熱障涂層高溫?zé)釠_擊的燃?xì)鈬姌?在噴槍中設(shè)計速度、流量可控的顆粒送料系統(tǒng),同時在裝置中集成裂紋演化實時檢測的聲發(fā)射系統(tǒng)。結(jié)果該系統(tǒng)實現(xiàn)了熱障涂層沖蝕服役環(huán)境的模擬,溫度場、裂紋演化損傷參量的同步采集、輸出與顯示,從而完成了沖蝕服役環(huán)境模擬與關(guān)鍵損傷參量實時檢測的一體化設(shè)計。結(jié)論裝置能完成熱障涂層常溫、高溫等各種服役溫度、各種沖蝕角度、各種沖蝕速度等條件下的模擬試驗,并提供較為系統(tǒng)的損傷參量檢測數(shù)據(jù),為理解熱障涂層的沖蝕機理、優(yōu)化其設(shè)計制備提供有效的試驗數(shù)據(jù)。
[Abstract]:Aim to study the erosion failure mechanism of thermal barrier coating by developing a simulation device for erosion service environment. Methods A gas spray gun simulating high temperature thermal shock of thermal barrier coating was developed. A particle feeding system with controllable velocity and flow rate was designed in the spray gun. At the same time, an acoustic emission system was integrated into the device to detect the crack evolution in real time. Results the system realized the simulation of erosion service environment of thermal barrier coating, the synchronous acquisition, output and display of temperature field and damage parameters of crack evolution. Thus, the integrated design of environment simulation and real-time detection of key damage parameters was completed. Conclusion the device can be used to simulate the thermal barrier coating under the conditions of room temperature, high temperature and various service temperature, various erosion angles, various erosion velocity and so on, and provide systematic data of damage parameter detection, in order to understand the erosion mechanism of thermal barrier coating. Optimize its design and preparation to provide effective test data.
【作者單位】： 湘潭大學(xué)材料科學(xué)與工程學(xué)院裝備用關(guān)鍵薄膜材料及應(yīng)用湖南省國防科技重點實驗室;湘潭大學(xué)材料科學(xué)與工程學(xué)院低維材料及其應(yīng)用技術(shù)教育部重點實驗室;
【基金】：國家自然科學(xué)基金項目(51590891,11272275,11472237)~~
【分類號】：TG174.4

【參考文獻】

相關(guān)期刊論文 前2條

1 楊麗;周益春;齊莎莎;;熱障涂層的沖蝕破壞機理研究進展[J];力學(xué)進展;2012年06期

2 周益春;劉奇星;楊麗;吳多錦;毛衛(wèi)國;;熱障涂層的破壞機理與壽命預(yù)測[J];固體力學(xué)學(xué)報;2010年05期

【共引文獻】

相關(guān)期刊論文 前10條

1 牟仁德;王占考;陸峰;舒煥p，

本文編號：2356859