Effects of LSPwC on microstructure and properties of GH3044 turbine case

Xie Mengyun; Wang Cheng; Zhang Peiyu; Ming Jiqing; Chen Hui

doi:10.3788/IRLA201847.0406005

Volume 47 Issue 4

Apr. 2018

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Article Navigation > Infrared and Laser Engineering > 2018 > 47(4): 406005-0406005(7)

Xie Mengyun, Wang Cheng, Zhang Peiyu, Ming Jiqing, Chen Hui. Effects of LSPwC on microstructure and properties of GH3044 turbine case[J]. Infrared and Laser Engineering, 2018, 47(4): 406005-0406005(7). doi: 10.3788/IRLA201847.0406005

Citation:

Xie Mengyun, Wang Cheng, Zhang Peiyu, Ming Jiqing, Chen Hui. Effects of LSPwC on microstructure and properties of GH3044 turbine case[J]. Infrared and Laser Engineering, 2018, 47(4): 406005-0406005(7). doi: 10.3788/IRLA201847.0406005

Effects of LSPwC on microstructure and properties of GH3044 turbine case

doi: 10.3788/IRLA201847.0406005

1.
Science and Technology on Plasma Dynamics Laboratory,Air Force Engineering University,Xi'an 710038,China;
2.
No. 5713 Factory of PLA,Xiangyang 441002,China

Received Date: 2017-11-10
Rev Recd Date: 2017-12-20
Publish Date: 2018-04-25

Abstract

Aiming at the problem of covering absorption and protection coatings on turbine case parts during laser shock processing, a compound technology was put forward, which used water sand paper to polish out the ablative layer after laser shock processing without coating(LSPwC). The effects of LSPwC on microstructure and mechanical properties of GH3044 alloy were researched, the feasibility of the compound technology was verified. Energy disperse spectroscopy (EDS) was used to analyze element composition, the surface microstructure of samples was observed by means of scanning electron microscope (SEM) and metallographic microscope, mechanical properties were studied through residual stress and high cycle fatigue life test. The results show that LSPwC generates an ablative layer on sample surface, which thick 10-15 m range. Carbon and oxygen are rich in the layer, while the residual and tensile compressive stress alternately exist. The grain and carbide under the ablative layer are even-distributed and refined to different degree; Compared to original samples, LSPwC nearly improves the fatigue life of GH3044 alloy. After polishing out the ablative layer by water sand paper, a residual compressive stress, which is about 510 MPa, is generated on surface and the affected depth is about 1 mm. Besides, the fatigue life is improved to be about 3 times compared to original samples.
- laser shock processing,
- GH3044 alloy,
- microstructure,
- residual stress,
- high cycle fatigue life

References

[1]	Guo Jianting. High Temperature Alloy Manual[M]. Beijing:Science Press, 2008:456-460. (in Chinese)郭建亭. 高温合金手册[M]. 北京:科学出版社, 2008:456-460.
[2]	Zou Shikun. Application of laser shock processing on aeronautical manufacturing[J]. China Surface Engineering, 2016, 29(3). (in Chinese)邹世坤. 激光冲击强化在航空制造技术上的应用[J]. 中国表面工程, 2016, 29(3).
[3]	Zhang Y K, Lu J Z, Ren X D, et al. Effect of laser shock processing on the mechanical properties and fatigue lives of the turbojet engine blades manufactured by LY2 aluminum alloy[J]. Materials and Design, 2009, 30:1690-1703.
[4]	An Zhibin, Shen Xiaojun, Gao Shan, et al. Nanocrystallization of Ni-based superalloy K403 by laser shock peening[J]. Infrared and Laser Engineering, 2016, 45(9):0921002.
[5]	Wang C, Shen X J, An Z B. Effects of laser shock processing on microstructure and mechanical properties of K403 nickel-alloy[J]. Materials and Design, 2016, 89:582-588.
[6]	Li Wei, Li Yinghong, He Weifeng, et al. Development and application of laser shock processing[J]. Laser and Optoelectronics Progress, 2008, 45(12):15-19. (in Chinese)李伟, 李应红, 何卫锋,等. 激光冲击强化技术的发展和应用[J]. 激光与光电学进展, 2008, 45(12):15-19.
[7]	Sano Y, Obata M, Kubo T, et al. Retardation of crack initiation and growth in austenitic stainless steels by laser peening without protective coating[J]. Materials Science and Engineering, 2006, 417(1-2):334-340.
[8]	Sano Y, Masaki K, Gushi T, et al. Improvement in fatigue performance of friction stir welded A6061-76 aluminum alloy by laser peening without coating[J]. Materials and Design, 2012, 36:809-814.
[9]	Msswad E, Sano Y, Wagner L, et al. Investigation of laser shock peening effects on residual stress state and fatigue performance of titanium alloys[J]. Materials Science and Engineering, 2012, 536:82-91.
[10]	Jiao Yang, He Weifeng, Luo Sihai, et al. Study of micro-scale laser shock processing without coating improving the high cycle fatigue performance of K24 simulated blades[J]. Chinese Journal of Lasers, 2015, 42(10):1003002. (in Chinese)焦阳, 何卫锋, 罗思海, 等. 无保护涂层激光冲击提高K24合金高周疲劳性能研究[J]. 中国激光, 2015, 42(10):1003002.
[11]	Li Yuqin, Wang Xuede, Song Feilong, et al. Study on microstructure and performances of 304 stainless steel treaded by laser shock processing[J]. Infrared and Laser Engineering, 2016, 45(10):1006005. (in Chinese)李玉琴, 王学德, 宋飞龙, 等. 激光冲击304不锈钢微观组织和性能研究[J]. 红外与激光工程, 2016, 45(10):1006005.
[12]	Qiao Hongchao, Zhao Yixiang, Zhao Jibin. Effect of laser peening on microstructures and properties of TiAl alloy[J]. Optics Precision Engineering, 2014, 22(7):1766-1773. (in Chinese)
[13]	Li Yuqin, He Weifeng, Nie Xiangfan, et al. Research on GHH133 nickel-alloy under laser shock processing[J]. Rare Metal Materials and Engineering, 2015, 44(6):1517-1521. (in Chinese)李玉琴, 何卫锋, 聂祥樊, 等. GHH133镍基高温合金激光冲击强化研究[J]. 稀有金属材料与工程, 2015, 44(6):1517-1521.
[14]	Hua Yinqun, Xue Qing, Liu Haixia, et al. Study of the substructure in nanometer copper thin films treated by laser shock processing[J]. Chinese Optical Letters, 2013, 11(3):1402.
[15]	Li Yazhi, Wang Qi, Zhang Zipeng, et al. Exploring further fatigue crack closure in residual stress field through numerical simulation[J]. Journal of Northwestern Polytechnical University, 2011, 29(1):97-10. (in Chinese)李亚智, 王启, 张自鹏, 等. 残余应力场中疲劳裂纹闭合的数值分析[J]. 西北工业大学学报, 2011, 29(1):97-102.
[16]	Shen Xiaojun, Wang Cheng, An Zhibin, et al. Effects of oblique laser shock processing on rotary bending fatigue of aero-engine fan shaft[J]. Infrared and Laser Engineering, 2015, 44(12):3548-355. (in Chinese)沈晓骏, 汪诚, 安志斌, 等. 斜激光冲击对航空发动机风扇轴弯曲疲劳性能的影响[J]. 红外与激光工程, 2015, 44(12):3548-3553.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of LSPwC on microstructure and properties of GH3044 turbine case

1. Science and Technology on Plasma Dynamics Laboratory,Air Force Engineering University,Xi'an 710038,China;

2. No. 5713 Factory of PLA,Xiangyang 441002,China

Received Date: 2017-11-10

Rev Recd Date: 2017-12-20

Publish Date: 2018-04-25

Key words:

Abstract: Aiming at the problem of covering absorption and protection coatings on turbine case parts during laser shock processing, a compound technology was put forward, which used water sand paper to polish out the ablative layer after laser shock processing without coating(LSPwC). The effects of LSPwC on microstructure and mechanical properties of GH3044 alloy were researched, the feasibility of the compound technology was verified. Energy disperse spectroscopy (EDS) was used to analyze element composition, the surface microstructure of samples was observed by means of scanning electron microscope (SEM) and metallographic microscope, mechanical properties were studied through residual stress and high cycle fatigue life test. The results show that LSPwC generates an ablative layer on sample surface, which thick 10-15 m range. Carbon and oxygen are rich in the layer, while the residual and tensile compressive stress alternately exist. The grain and carbide under the ablative layer are even-distributed and refined to different degree; Compared to original samples, LSPwC nearly improves the fatigue life of GH3044 alloy. After polishing out the ablative layer by water sand paper, a residual compressive stress, which is about 510 MPa, is generated on surface and the affected depth is about 1 mm. Besides, the fatigue life is improved to be about 3 times compared to original samples.

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Reference (16)

[1]	Guo Jianting. High Temperature Alloy Manual[M]. Beijing:Science Press, 2008:456-460. (in Chinese)郭建亭. 高温合金手册[M]. 北京:科学出版社, 2008:456-460.
[2]	Zou Shikun. Application of laser shock processing on aeronautical manufacturing[J]. China Surface Engineering, 2016, 29(3). (in Chinese)邹世坤. 激光冲击强化在航空制造技术上的应用[J]. 中国表面工程, 2016, 29(3).
[3]	Zhang Y K, Lu J Z, Ren X D, et al. Effect of laser shock processing on the mechanical properties and fatigue lives of the turbojet engine blades manufactured by LY2 aluminum alloy[J]. Materials and Design, 2009, 30:1690-1703.
[4]	An Zhibin, Shen Xiaojun, Gao Shan, et al. Nanocrystallization of Ni-based superalloy K403 by laser shock peening[J]. Infrared and Laser Engineering, 2016, 45(9):0921002.
[5]	Wang C, Shen X J, An Z B. Effects of laser shock processing on microstructure and mechanical properties of K403 nickel-alloy[J]. Materials and Design, 2016, 89:582-588.
[6]	Li Wei, Li Yinghong, He Weifeng, et al. Development and application of laser shock processing[J]. Laser and Optoelectronics Progress, 2008, 45(12):15-19. (in Chinese)李伟, 李应红, 何卫锋,等. 激光冲击强化技术的发展和应用[J]. 激光与光电学进展, 2008, 45(12):15-19.
[7]	Sano Y, Obata M, Kubo T, et al. Retardation of crack initiation and growth in austenitic stainless steels by laser peening without protective coating[J]. Materials Science and Engineering, 2006, 417(1-2):334-340.
[8]	Sano Y, Masaki K, Gushi T, et al. Improvement in fatigue performance of friction stir welded A6061-76 aluminum alloy by laser peening without coating[J]. Materials and Design, 2012, 36:809-814.
[9]	Msswad E, Sano Y, Wagner L, et al. Investigation of laser shock peening effects on residual stress state and fatigue performance of titanium alloys[J]. Materials Science and Engineering, 2012, 536:82-91.
[10]	Jiao Yang, He Weifeng, Luo Sihai, et al. Study of micro-scale laser shock processing without coating improving the high cycle fatigue performance of K24 simulated blades[J]. Chinese Journal of Lasers, 2015, 42(10):1003002. (in Chinese)焦阳, 何卫锋, 罗思海, 等. 无保护涂层激光冲击提高K24合金高周疲劳性能研究[J]. 中国激光, 2015, 42(10):1003002.
[11]	Li Yuqin, Wang Xuede, Song Feilong, et al. Study on microstructure and performances of 304 stainless steel treaded by laser shock processing[J]. Infrared and Laser Engineering, 2016, 45(10):1006005. (in Chinese)李玉琴, 王学德, 宋飞龙, 等. 激光冲击304不锈钢微观组织和性能研究[J]. 红外与激光工程, 2016, 45(10):1006005.
[12]	Qiao Hongchao, Zhao Yixiang, Zhao Jibin. Effect of laser peening on microstructures and properties of TiAl alloy[J]. Optics Precision Engineering, 2014, 22(7):1766-1773. (in Chinese)
[13]	Li Yuqin, He Weifeng, Nie Xiangfan, et al. Research on GHH133 nickel-alloy under laser shock processing[J]. Rare Metal Materials and Engineering, 2015, 44(6):1517-1521. (in Chinese)李玉琴, 何卫锋, 聂祥樊, 等. GHH133镍基高温合金激光冲击强化研究[J]. 稀有金属材料与工程, 2015, 44(6):1517-1521.
[14]	Hua Yinqun, Xue Qing, Liu Haixia, et al. Study of the substructure in nanometer copper thin films treated by laser shock processing[J]. Chinese Optical Letters, 2013, 11(3):1402.
[15]	Li Yazhi, Wang Qi, Zhang Zipeng, et al. Exploring further fatigue crack closure in residual stress field through numerical simulation[J]. Journal of Northwestern Polytechnical University, 2011, 29(1):97-10. (in Chinese)李亚智, 王启, 张自鹏, 等. 残余应力场中疲劳裂纹闭合的数值分析[J]. 西北工业大学学报, 2011, 29(1):97-102.
[16]	Shen Xiaojun, Wang Cheng, An Zhibin, et al. Effects of oblique laser shock processing on rotary bending fatigue of aero-engine fan shaft[J]. Infrared and Laser Engineering, 2015, 44(12):3548-355. (in Chinese)沈晓骏, 汪诚, 安志斌, 等. 斜激光冲击对航空发动机风扇轴弯曲疲劳性能的影响[J]. 红外与激光工程, 2015, 44(12):3548-3553.

Effects of LSPwC on microstructure and properties of GH3044 turbine case

doi: 10.3788/IRLA201847.0406005

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References

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通讯作者: 陈斌, bchen63@163.com

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