Cause analysis of titanium alloy spherical gas cylinders leakage under hydraulic test

XU Song-Juan; YANG Yi-Bo; ZHANG Jing; TAN Hai-Jing

doi:10.13228/j.boyuan.issn1001-0777.20170112

Physics Examination and Testing ›› 2018, Vol. 36 ›› Issue (4) : 30-33. DOI: 10.13228/j.boyuan.issn1001-0777.20170112

Defect Analysis

Cause analysis of titanium alloy spherical gas cylinders leakage under hydraulic test

Author information +

History +

Abstract

A titanium alloy spherical gas cylinders leaked under hydraulic test. Macro examination， fracture analysis （SEM）， metallographic structure， energy dispersive spectrometry （EDS）， hardness testing and chemical composition analysis methods were used. The results revealed that the fracture mode was brittle fracture， and aluminum-rich segregation around the crack was the cause of the cracking.

Key words

titanium alloy spherical gas cylinders，leakage，aluminum-rich segregation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

XU Song-Juan, YANG Yi-Bo, ZHANG Jing, et al. Cause analysis of titanium alloy spherical gas cylinders leakage under hydraulic test[J]. Physics Examination and Testing, 2018, 36(4): 30-33 https://doi.org/10.13228/j.boyuan.issn1001-0777.20170112

References

[1]刘伟，杜宇.低温钛合金的研究现状[J].稀有金属快报, 2007, 26(9):6-10 [2] 尚育如.弹头弹体制造与火箭总装技术[M].北京:宇航出版社，1989.., 1989, :- [3]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 [4]赵军静，牛犇，刘振波等.钛合金球形气瓶焊接工艺研究[J].航天制造技术, 2016, 12(6):54- [5]陶春虎，习年生，张卫方等.钛合金球形气瓶低压爆破分析及安全评估[J].机械工程材料, 2000, 24(6):32-35 [6] 王金友，葛志明，周邦彦.航空用钛合金[M].上海:上海科学与工业出版社，1985. [7] Tao C H， Zhang S Q， Yan M G.[J].Trans.Nonferrous Soc, 1995, (2):71- [8] 鲍利索娃E A.陈石卿译.钛合金金相学[M].北京:国防工业出版社，1986. [9] 蔡建明; 张旺峰; 李臻熙.TC11钛合金叶片上亮条和暗条的性质及控制[J].材料工程, 2005, (1):16-19