Experiment of acoustic emission of tensile damage of titanium alloy under high temperature environment
-
摘要: 针对高温环境钛合金损伤在役监测需要,提出了采用声发射技术对其进行实时动态监测。通过模拟真实机匣内高温环境,对TA15钛合金进行高温拉伸损伤力学声发射监测试验。确定了钛合金为波导杆的材料,将焊接了波导杆的钛合金试件进行不同拉伸速率下的高温拉伸试验。试验结果表明,不同温度下TA15钛合金的力学性能呈现有规律的变化,声发射技术可以成功地监测和表征钛合金的损伤演变,计数能够明显地反映出高温下拉伸试验的不同力学阶段。Abstract: In response to the need for in-service monitoring of titanium alloy damages in high-temperature environments, a real-time dynamic monitoring technology using acoustic emission (AE) was proposed. In this paper, the acoustic emission monitoring test of tensile damage mechanics of TA15 titanium alloy at high temperature was carried out by simulating the high-temperature environment in the real casing. Firstly, titanium alloy was determined as the material for waveguide rods. Then, the titanium alloy specimens welded with waveguide rods were subjected to high-temperature tensile tests at different tensile rates. Experiments showed that the mechanical properties exhibited regular changes at different temperatures. Acoustic emission technology can successfully monitor and characterize the damage evolution of titanium alloys, and counting can clearly reflect the different mechanical stages of tensile experiments at high temperatures.
-
Keywords:
- TA15 titanium alloy /
- high temperature tensile /
- parametric analysis /
- waveguide rod
-
-
[1] 曹春晓.钛合金在大型运输机上的应用[J].稀有金属快报,2006,25(1):17-21. [2] 钱九红.航空航天用新型钛合金的研究发展及应用[J].稀有金属,2000,24(3):218-223. [3] 金和喜,魏克湘,李建明,等.航空用钛合金研究进展[J].中国有色金属学报,2015,25(2):280-292. [4] 杨军.TA15钛合金热变形行为特性研究[D].西安:西安建筑科技大学,2020. [5] 邓炬,赵永庆,于振涛.钛及钛合金新材料的研究与开发战略[J].钛工业进展,2002,19(4):30-32. [6] MISHRA R K,THOMAS J,SRINIVASAN K,et al.Fatigue failure of LP compressor blade in an aero gas turbine engine[J].Journal of Failure Analysis and Prevention,2014,14(3):296-302.
[7] 马方慧,陈尧,戴雪梅,等.基于时间反转理论的航空管板铸件声源定位算法研究[J].仪表技术与传感器,2019(12):98-102. [8] 韩建军,张华,张瑞,等.航空发动机健康管理系统技术与标准发展综述[J].航空标准化与质量,2013(3):5-9. [9] 齐添添,陈尧,李昕,等.基于时间反转的玻璃钢复合板材声发射源定位方法[J].仪器仪表学报,2020,41(6):208-217. [10] MCBAGONLURI F,AKPAN E,MERCER C,et al.An investigation of the effects of microstructure on dwell fatigue crack growth in Ti-6242[J].Materials Science and Engineering:A,2005,405(1/2):111-134.
[11] VSHIVKOV A N,IZIUMOVA A Y,PANTELEEV I A,et al.The study of a fatigue crack propagation in titanium Grade 2 using analysis of energy dissipation and acoustic emission data[J].Engineering Fracture Mechanics,2019,210:312-319.
[12] 张昭,肖迎春, 王倩, 等. TC18钛合金疲劳断裂过程声发射信号特征分析[J]. 航空工程进展,2015,6(4):502-506. [13] HUANG J Y, ZHANG Z H, HAN C, et al. Identification of deformation stage and crack initiation in TC11 alloys using acoustic emission[J]. Applied Sciences,2020,10(11):3674.
[14] 宫永辉, 武小峰, 尹晓峰, 等. 高温条件下波导杆的在线损伤检测[J]. 无损检测,2019,41(9):70-74. [15] 刘兵, 王风, 傅辉, 等. 不同材料波导杆在水中的声波传播特性[J]. 无损检测,2017,39(1):24-27,31. [16] 徐彦廷, 王晓巍, 王祥岗, 等. 利用常温声发射传感器检测高/低温容器时的实用波传导方法[J]. 无损检测,2011,33(12):93-95. [17] 张鑫鹏, 黄丽霞, 沈佳卉, 等. 钢丝绳声发射信号传播特性分析[J]. 失效分析与预防,2022,17(1):24-31, 36. [18] 李秋锋, 康晨, 魏鑫成, 等. 钛合金裂纹声发射源的特征分析与试验验证[J]. 失效分析与预防,2022,17(5):316-327. [19] 齐添添, 陈尧, 何才厚, 等. 损伤声发射信号小波包神经网络特征识别方法[J]. 北京邮电大学学报,2021, 44(1):124-130.
计量
- 文章访问数: 9
- HTML全文浏览量: 0
- PDF下载量: 3
下载:
