Fatigue Crack Propagation Rates in Different Zones of TA2 Titanium Alloy Welded Joint

WEN Leilei; ZHOU Changyu; LI Jian; LU Lei

doi:10.11973/jxgccl201711007

Materials and Mechanical Engineering > 2017 > 41(11): 39-44. > DOI: 10.11973/jxgccl201711007

WEN Leilei, ZHOU Changyu, LI Jian, LU Lei. Fatigue Crack Propagation Rates in Different Zones of TA2 Titanium Alloy Welded Joint[J]. Materials and Mechanical Engineering, 2017, 41(11): 39-44. DOI: 10.11973/jxgccl201711007

Citation:

PDF (20134 KB)

Fatigue Crack Propagation Rates in Different Zones of TA2 Titanium Alloy Welded Joint

College of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, China

More Information

Received Date: December 08, 2016
Revised Date: August 22, 2017

Graphical Abstract

Abstract

Abstract

The fatigue crack propagation rate, fatigue fracture morphology and microstructure in base metal, fusion line, weld center and heat affected zone of TA2 titanium alloy welded joint were studied. The results show that the fatigue crack propagation rates in different zones of the joint had small difference and thus could be directly presented by the crack propagation rate of the weld zone. The fracture of samples from different zones illustrated typical fatigue fracture morphology. The average grain size of the base metal was about 62.8 μm, and that of the heat affected zone was about 110 μm. The grain size had little influence on the fatigue crack propagation rate.
- TA2 titanium alloy,
- welded joint,
- fatigue fracture,
- fatigue crack propagation

FullText(HTML)

References (16)

References

[1]	贾翃,逯福生,郝斌.2015年中国钛工业发展报告[J].中国钛业,2016,33(1):1-6.
[2]	商国强,朱知寿,常辉,等.超高强度钛合金研究进展[J].稀有金属,2011,35(2):286-290.
[3]	CAO C X. Change of material selection criterion and development of high damage-tolerant titanium alloy[J]. Acta Metallurgica Sinica, 2002, 38(S1): 4-11.
[4]	GONG J C, WILKINSON A J. Anisotropy in the plastic flow properties of single-crystal α titanium determined from micro-cantilever beams[J].Acta Materialia,2009,57(19):5693-5705.
[5]	LI J Y, LI B F, FENG G X. Effect of weld geometrical features on fatigue properties of 5A30 aluminum alloy welded joints[J]. Chinese Journal of Nonferrous Metals, 2004, 14(11):1895-1900.
[6]	方洪渊. 焊接结构学[M]. 北京:机械工业出版社,2008.
[7]	PARK S S, TANG W N, YOU B S. Microstructure and mechanical properties of an indirect-extruded Mg-8Sn-1Al-1Zn alloy[J]. Materials Letters, 2010, 64(1):31-34.
[8]	史耀武,史轩. HG80钢及其焊接接头的疲劳裂纹扩展[J].机械工程材料,2003,27(8):5-7.
[9]	ZHANG H, PEI F, YAN Z, et al. Fatigue crack propagation behavior of as-extruded AZ31B Mg alloy welded joint[J]. Rare Metal Materials and Engineering, 2012, 41(6):967-972.
[10]	黄嘉,季英萍,秦丽晔,等. GH4169合金惯性摩擦焊焊接接头疲劳裂纹扩展性能[J].航空材料学报,2013,33(6):45-50.
[11]	薛彬,张天会,王时越,等. ADB610钢焊接接头中疲劳裂纹的扩展速率[J].机械工程材料,2015,39(10):90-94.
[12]	李行志,胡树兵,肖建中,等. TA15钛合金电子束焊接接头不同区域的疲劳裂纹扩展行为研究[J].航空材料学报,2010,30(1):52-56.
[13]	OH J, KIM N J, LEE S, et al. Correlation of fatigue properties and microstructure in investment cast Ti-6Al-4V welds[J]. Materials Science and Engineering A, 2003, 340(1/2):232-242.
[14]	WU B, LI J, GONG S, et al. Fatigue crack growth properties and fatigue crack growth life of the EB-joints of TC17 titanium alloy[J]. Rare Metal Materials and Engineering, 2009, 38(12):170-174.
[15]	KIDANE A, SHUKLA A. Quasi-static and dynamic fracture initiation toughness of Ti/TiB layered functionally graded material under thermo-mechanical loading[J]. Engineering Fracture Mechanics, 2010, 77(3): 479-491.
[16]	张海泉, 张彦华, 李刘合,等.力学失配对电子束焊接接头疲劳裂纹扩展行为的影响[J]. 焊接学报,2000,21(3):40-43.

Cited By

Get Citation

PDF

XML

Article views (5) PDF downloads (0)

Turn off MathJax

Article Contents

Abstract

References

Fatigue Crack Propagation Rates in Different Zones of TA2 Titanium Alloy Welded Joint

Abstract

References

Catalog

Export File

Citation

Format

Content