Experimental investigation of laser peening on TiAl alloy microstructure and properties
查看参考文献25篇
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文摘
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In order to study the effect of laser peening on microstructures and properties of TiAl alloy, TiAl alloy samples were treated by Nd:YAG laser system with the wavelength of 1064 nm, pulse-width of 18 ns, and pulse-energy of 0–10 J. Surface micro-hardness, roughness, and microstructural characteristics were tested with micro-hardness tester, roughness tester and scanning electron microscope. Residual stress and pole figures were tested with X-ray diffraction and its high-temperature stability was analyzed. The experimental results show that surface micro-hardness increases by up to 30%, roughness increases to 0.37 lm, compressive residual stress increases to 337 MPa, and local texture and typical lamellar microstructure are generated. Residual stress, micro-hardness, and (002) pole figures tests are conducted, compressive residual stress value drops from 337 MPa to 260 MPa, hardness value drops from 377 HV_(0.2) to 343 HV_(0.2), and the (002) poles shift back to the center slightly. Laser peening improves microstructure and properties of TiAl alloy significantly. |
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来源
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Chinese Journal of Aeronautics
,2015,28(2):609-616 【核心库】
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DOI
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10.1016/j.cja.2015.01.006
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关键词
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High temperature stability
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Laser peening
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Microstructure
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Residual stress
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TiAl alloy
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地址
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1.
Shenyang Institute of Automation Chinese Academy of Science, Shenyang, 110016
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AVIC Shenyang Liming Aero-engine (Group) Corporation Ltd., Shenyang, 110016
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1000-9361 |
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学科
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自动化技术、计算机技术 |
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基金
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supported by the National High Technology Research and Development Program of China (863 Program)
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文献收藏号
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CSCD:5399001
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参考文献 共
25
共2页
|
|
1.
Bagherifard S. Effect of severe shot peening on microstructure and fatigue strength of cast iron.
Int J Fatigue,2014,65:64-70
|
被引
17
次
|
|
|
|
|
2.
Ashida M. Microstructures and mechanical properties of Ti-6Al-7Nb processed by high-pressure torsion.
Procedia Eng,2014,81:1523-1528
|
被引
1
次
|
|
|
|
|
3.
Orazi L. Laser surface hardening of large cylindrical components utilizing ring spot geometry.
CIRP Ann,2014,63(1):233-236
|
被引
3
次
|
|
|
|
|
4.
Kim S. Effects of water cavitation peening on electrochemical characteristic by using micro-droplet cell of Al-Mg alloy.
Curr Appl Phys,2014,12(2):s24-s30
|
被引
1
次
|
|
|
|
|
5.
Zhang Y. The coldrolling behavior of AZ31 tubes for fabrication of biodegradable stents.
J Mech Behav Biomed Mater,2014,39:292-303
|
被引
2
次
|
|
|
|
|
6.
Achintha M. Fatigue behavior of geometric features subjected to laser shock peening: experiments and modelling.
Int J Fatigue,2014,62:171-179
|
被引
18
次
|
|
|
|
|
7.
Ye C. Bimodal nanocrystallization of NiTi shape memory alloy by laser shock peening and postdeformation annealing.
Acta Mater,2011,59(19):7219-7227
|
被引
11
次
|
|
|
|
|
8.
Cellard C. Laser shock peening of Ti-17 titanium alloy: influence of process parameters.
Mater Sci Eng A,2012,532:362-372
|
被引
30
次
|
|
|
|
|
9.
Ye C. Fatigue performance improvement in AISI 4140 steel by dynamic strain aging and dynamic precipitation during warm laser shock peening.
Acta Mater,2011,59(3):1014-1025
|
被引
36
次
|
|
|
|
|
10.
Jia W. Effect of laser shock peening on the mechanical properties of a near-a titanium alloy.
Mater Sci Eng A,2014,606:354-359
|
被引
4
次
|
|
|
|
|
11.
Zhu J. Applications of underwater laser peening in nuclear power plant maintenance.
Energy Procedia,2012,16:153-158
|
被引
1
次
|
|
|
|
|
12.
Ganesh P. Studies on fatigue life enhancement of prefatigued spring steel specimens using laser shock peening.
Mater Des,2014,54:734-741
|
被引
9
次
|
|
|
|
|
13.
Ren N F. High temperature mechanical properties and surface fatigue behavior improving of steel alloy via laser shock peening.
Mater Des,2014,53:452-456
|
被引
10
次
|
|
|
|
|
14.
Marchi C S. Effect of laser peening on the hydrogen compatibility of corrosion-resistant nickel alloy.
Scr Mater,2008,58(9):782-785
|
被引
4
次
|
|
|
|
|
15.
Ganesh P. Studies on laser peening of spring steel for automotive applications.
Opt Lasers Eng,2012,50(5):678-686
|
被引
9
次
|
|
|
|
|
16.
Lim H. Enhancement of abrasion and corrosion resistance of duplex stainless steel by laser shock peening.
J Mater Process Technol,2012,212(6):1347-1354
|
被引
26
次
|
|
|
|
|
17.
Sathyajith S. Laser peening without coating on aluminum alloy Al-6061-T6 using low energy Nd:YAG laser.
Opt Laser Technol,2013,45:389-394
|
被引
7
次
|
|
|
|
|
18.
Cao Z. Investigation of surface integrity on TC17 titanium alloy treated by square-spot laser shock peening.
Chin J Aeronaut,2012,25(4):650-656
|
被引
2
次
|
|
|
|
|
19.
Hatamleh O. Laser and shot peening effects on fatigue crack growth in friction stir welded 7075-T7351 aluminum alloy joints.
Int J Fatigue,2007,29(3):421-434
|
被引
28
次
|
|
|
|
|
20.
Liu K K. The effects of laser peening and shot peening on fretting fatigue in Ti-6Al-4V.
Tribol Int,2009,42(9):1250-1262
|
被引
15
次
|
|
|
|
|
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