Ti811表面TC4激光熔覆层的β相变行为
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摘要
参考航空发动机压气机转子叶片的维修手册,以Ti811 (Ti-8A1-1Mo-lV)钛合金为基板、TC4钛合金粉末为原料,采用同步送粉激光熔覆方法制备了激光熔覆层,并利用X射线衍射仪、扫描电镜和能谱分析仪等手段分析了熔覆层的显微组织和相变规律。结果表明:熔覆层微观组织呈典型的魏氏体组织或片层组织形貌特点;在激光熔覆的作用下,合金中的β相发生相变,分别生成了晶界α相、针状马氏体α'相、纳米有序相α_2(Ti_3Al)和残留的β相。在实际激光加工试验中应尽量避免魏氏体结构的出现。
According to the repair manual of high pressure compressor blade for aero-engine,laser cladding layer was prepared by synchronous powder feeding laser cladding method with Ti811( Ti-8A1-1Mo-lV) titanium alloy substrate and TC4 cladding powders. The microstructure and phase transformation of the cladding layer were analyzed by means of X-ray diffractometer,scanning electron microscope and energy spectrum analyzer. The results show that the laser cladding microstructure shows a typical widmanstatten structure or lamellar microstructure in the cladding layer. Under the action of laser cladding,phase transformation occurs and generates grain boundary α phase,acicular martensite phase α' and nano ordered phase α_2( Ti_3Al) and residual β phase. The widmanstatten structure should be avoided as much as possible in the actual laser processing.
According to the repair manual of high pressure compressor blade for aero-engine,laser cladding layer was prepared by synchronous powder feeding laser cladding method with Ti811( Ti-8A1-1Mo-lV) titanium alloy substrate and TC4 cladding powders. The microstructure and phase transformation of the cladding layer were analyzed by means of X-ray diffractometer,scanning electron microscope and energy spectrum analyzer. The results show that the laser cladding microstructure shows a typical widmanstatten structure or lamellar microstructure in the cladding layer. Under the action of laser cladding,phase transformation occurs and generates grain boundary α phase,acicular martensite phase α' and nano ordered phase α_2( Ti_3Al) and residual β phase. The widmanstatten structure should be avoided as much as possible in the actual laser processing.
引文
[1]赵永庆,洪权,葛鹏.钛及钛合金金相图谱[M].长沙:中南大学出版社,2011.Zhao Yongqing,Hong Quan,Ge Peng.Titanium and Titanium Alloy Metallography[M].Changsha:Central South University Press,2011.
[2]林成,于佳石,尹桂丽,等.钛合金中ω相变的研究进展[J].材料导报,2017(5):72-76.Lin Cheng,Yu Jiashi,Yin Guili,et al.Omega phase transformation in titanium alloys:A review[J].Material Review,2017(5):72-76.
[3]蒲飞,刘元富,徐向阳,等.激光表面合金化制备Ti C/Ti Al复合涂层组织及Ti C演变机制[J].金属热处理,2017,42(1):120-123.Pu Fei,Li Yuanfu,Xu Xiangyang,et al.Microstructure and Ti Cevolution behavior of Ti C/Ti Al composite coating fabricated by laser surface alloying[J].Heat Treatment of Metals,2017,42(1):120-123.
[4]贺文雄,赵健,吕志军.钢表面激光熔覆Ti-Al球磨粉合成复合涂层[J].焊接学报,2015,36(5):85-88.He Wenxiong,Zhao Jian,LüZhijun.Ti-Al composite coating prepared by laser cladding on steel surface[J].Transactions of the China Welding Institution,2015,36(5):85-88.
[5]魏红梅,李万青,何鹏,等.Ti3Al/Ti/Ti2Al Nb扩散连接工艺及性能[J].焊接学报,2015,36(4):5-8.Wei Hongmei,Li Wanqing,He Peng,et al.Technology and properties of Ti3Al/Ti/Ti2Al Nb diffusion welding[J].Transactions of the China Welding Institution,2015,36(4):5-8.
[6]石多奇,骆银银,赵鹏涛,等.低周疲劳预损伤对TA11合金高周疲劳强度的影响[J].航空动力学报,2016,31(2):257-265.Shi Duoqi,Luo Yinyin,Zhao Pengtao,et al.Effect of low cycle fatigue pre-damage on high cycle fatigue strength of TA11 alloy[J].Journal of Aerospace Power,2016,31(2):257-265.
[7]黄旭,朱知寿,王红红.先进航空钛合金材料与应用[M].北京:国防工业出版社,2012.
[8]Ma Nan,Liu Xinling,Qiu Zhiwang,et al.Effect of the ratio between tension and bending vibration loads on the fatigue behavior and failure mode of titanium alloy TA11[J].Advanced Materials Research,2014,88:27-32.
[9]王浩,王立文,王涛,等.航空发动机损伤叶片再制造修复方法与实现[J].航空学报,2016,37(3):1036-1048.Wang Hao,Wang Liwen,Wang Tao.Method and implementation of remanufacture and repair of aircraft engine damaged blades[J].Acta Aeronautica et Astronautica Sinica,2016,37(3):1036-1048.
[10]王浩,赵世伟,王立文,等.离心压缩机受损叶轮再制造方法[J].农业机械学报,2016,47(5):407-412.Wang Hao,Zhao Shiwei,Wang Liwen,et al.Remanufacture method of damaged impeller in centrifugal compressor[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(5):407-412.
[11]Tao Wang,Huapeng Ding,Hao Wang.Recent repair technology for aeroengine blades[J].Recent Patents on Engineering,2015,9:132-141.
[12]Sterling A J,Torries B,Lugo M,et al.Fatigue behavior of Ti-6Al-4Valloy additively manufactured by laser engineered net shaping[C]//56th AIAA/ASCE/AHS/ASC Structures,Structural Dynamics,and Materials Conference.American Institute of Aeronautics and Astronautics,Reston,VA,USA,2015:1-8.
[13]Weng Fei,Yu Huijun,Chen Chuanzhong,et al.Effect of process parameters on the microstructure evolution and wear property of the laser cladding coatings on Ti-6Al-4V alloy[J].Journal of Alloys and Compounds,2017,692(1):989-996.
[14]Paydas H,Mertens A,Carrus R,et al.Laser cladding as repair technology for Ti-6Al-4V alloy:Influence of building strategy on microstructure and hardness[J].Materials and Design,2015,85(7):497-510.
[15]朱知寿.新型航空高性能钛合金材料技术研究与发展[M].北京:航空工业出版社,2013.Zhu Zhishou.Research and development of new aviation highperformance titanium alloy material technology[M].Beijing:Aviation Industry Press,2013.
[16]张伟强.固态金属及合金中的相变[M].北京:国防工业出版社,2016.Zhang Weiqiang.Phase transitions in solid metals and alloys[M].Beijing:National Defense Industry Press,2016.
[17]赵新兵.材料热力学与动力学[M].哈尔滨:哈尔滨工业大学出版社,2003.Zhao Xinbing.Thermodynamics and kinetics of materials[M].Harbin:Harbin Institute of Technology Press,2003.
[18]梁基谢夫.金属二元系相图手册[M].北京:化学工业出版社,2009.Liankijev.Metal binary phase diagram manual[M].Beijing:Chemical Industry Press,2009.
[19]邹武装.钛手册[M].北京:化学工业出版社,2012.Zou Wuzhuang.Titanium manual[M].Beijing:Chemical Industry Press,2012.
[20]张喜燕.钛合金及应用[M].北京:化学工业出版社,2005.Zhang Xiyan.Titanium alloy and application[M].Beijing:Chemical Industry Press,2005.
[21]孙峰.Ti60钛合金相变动力学及组织演变研究[D].西安:西北工业大学,2015.Sun Feng.Study on the kinetics and tissue evolution of Ti60 titanium alloy[D].Xi'an:Northwestern Polytechnical University,2015.
[22]莱茵斯·皮特尔斯.钛与钛合金[M].北京:化学工业出版社,2005.Reince Priebus.Titanium and titanium alloy[M].Beijing:Chemical Industry Press,2005.
[2]林成,于佳石,尹桂丽,等.钛合金中ω相变的研究进展[J].材料导报,2017(5):72-76.Lin Cheng,Yu Jiashi,Yin Guili,et al.Omega phase transformation in titanium alloys:A review[J].Material Review,2017(5):72-76.
[3]蒲飞,刘元富,徐向阳,等.激光表面合金化制备Ti C/Ti Al复合涂层组织及Ti C演变机制[J].金属热处理,2017,42(1):120-123.Pu Fei,Li Yuanfu,Xu Xiangyang,et al.Microstructure and Ti Cevolution behavior of Ti C/Ti Al composite coating fabricated by laser surface alloying[J].Heat Treatment of Metals,2017,42(1):120-123.
[4]贺文雄,赵健,吕志军.钢表面激光熔覆Ti-Al球磨粉合成复合涂层[J].焊接学报,2015,36(5):85-88.He Wenxiong,Zhao Jian,LüZhijun.Ti-Al composite coating prepared by laser cladding on steel surface[J].Transactions of the China Welding Institution,2015,36(5):85-88.
[5]魏红梅,李万青,何鹏,等.Ti3Al/Ti/Ti2Al Nb扩散连接工艺及性能[J].焊接学报,2015,36(4):5-8.Wei Hongmei,Li Wanqing,He Peng,et al.Technology and properties of Ti3Al/Ti/Ti2Al Nb diffusion welding[J].Transactions of the China Welding Institution,2015,36(4):5-8.
[6]石多奇,骆银银,赵鹏涛,等.低周疲劳预损伤对TA11合金高周疲劳强度的影响[J].航空动力学报,2016,31(2):257-265.Shi Duoqi,Luo Yinyin,Zhao Pengtao,et al.Effect of low cycle fatigue pre-damage on high cycle fatigue strength of TA11 alloy[J].Journal of Aerospace Power,2016,31(2):257-265.
[7]黄旭,朱知寿,王红红.先进航空钛合金材料与应用[M].北京:国防工业出版社,2012.
[8]Ma Nan,Liu Xinling,Qiu Zhiwang,et al.Effect of the ratio between tension and bending vibration loads on the fatigue behavior and failure mode of titanium alloy TA11[J].Advanced Materials Research,2014,88:27-32.
[9]王浩,王立文,王涛,等.航空发动机损伤叶片再制造修复方法与实现[J].航空学报,2016,37(3):1036-1048.Wang Hao,Wang Liwen,Wang Tao.Method and implementation of remanufacture and repair of aircraft engine damaged blades[J].Acta Aeronautica et Astronautica Sinica,2016,37(3):1036-1048.
[10]王浩,赵世伟,王立文,等.离心压缩机受损叶轮再制造方法[J].农业机械学报,2016,47(5):407-412.Wang Hao,Zhao Shiwei,Wang Liwen,et al.Remanufacture method of damaged impeller in centrifugal compressor[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(5):407-412.
[11]Tao Wang,Huapeng Ding,Hao Wang.Recent repair technology for aeroengine blades[J].Recent Patents on Engineering,2015,9:132-141.
[12]Sterling A J,Torries B,Lugo M,et al.Fatigue behavior of Ti-6Al-4Valloy additively manufactured by laser engineered net shaping[C]//56th AIAA/ASCE/AHS/ASC Structures,Structural Dynamics,and Materials Conference.American Institute of Aeronautics and Astronautics,Reston,VA,USA,2015:1-8.
[13]Weng Fei,Yu Huijun,Chen Chuanzhong,et al.Effect of process parameters on the microstructure evolution and wear property of the laser cladding coatings on Ti-6Al-4V alloy[J].Journal of Alloys and Compounds,2017,692(1):989-996.
[14]Paydas H,Mertens A,Carrus R,et al.Laser cladding as repair technology for Ti-6Al-4V alloy:Influence of building strategy on microstructure and hardness[J].Materials and Design,2015,85(7):497-510.
[15]朱知寿.新型航空高性能钛合金材料技术研究与发展[M].北京:航空工业出版社,2013.Zhu Zhishou.Research and development of new aviation highperformance titanium alloy material technology[M].Beijing:Aviation Industry Press,2013.
[16]张伟强.固态金属及合金中的相变[M].北京:国防工业出版社,2016.Zhang Weiqiang.Phase transitions in solid metals and alloys[M].Beijing:National Defense Industry Press,2016.
[17]赵新兵.材料热力学与动力学[M].哈尔滨:哈尔滨工业大学出版社,2003.Zhao Xinbing.Thermodynamics and kinetics of materials[M].Harbin:Harbin Institute of Technology Press,2003.
[18]梁基谢夫.金属二元系相图手册[M].北京:化学工业出版社,2009.Liankijev.Metal binary phase diagram manual[M].Beijing:Chemical Industry Press,2009.
[19]邹武装.钛手册[M].北京:化学工业出版社,2012.Zou Wuzhuang.Titanium manual[M].Beijing:Chemical Industry Press,2012.
[20]张喜燕.钛合金及应用[M].北京:化学工业出版社,2005.Zhang Xiyan.Titanium alloy and application[M].Beijing:Chemical Industry Press,2005.
[21]孙峰.Ti60钛合金相变动力学及组织演变研究[D].西安:西北工业大学,2015.Sun Feng.Study on the kinetics and tissue evolution of Ti60 titanium alloy[D].Xi'an:Northwestern Polytechnical University,2015.
[22]莱茵斯·皮特尔斯.钛与钛合金[M].北京:化学工业出版社,2005.Reince Priebus.Titanium and titanium alloy[M].Beijing:Chemical Industry Press,2005.