FGH96镍基粉末高温合金氧化物夹杂的计算机断层扫描研究
|
摘要
利用计算机断层扫描技术(computed tomography,CT)研究了FGH96镍基粉末高温合金内部Al_2O_3、SiO_2及莫来石三种氧化物夹杂对不同工艺(热等静压工艺、热等静压+热挤压+等温锻造工艺及热等静压+等温锻造工艺)的敏感程度。结果表明:热等静压+等温锻造工艺能显著减小Al_2O_3夹杂物的尺寸和其在合金中的含量,采用热等静压+热挤压+等温锻造工艺最能有效减少SiO_2夹杂物在合金中的含量,而莫来石夹杂对热等静压+热挤压+等温锻造工艺和热等静压+等温锻造工艺均较为敏感,且两种工艺对莫来石夹杂的作用效果类似。夹杂物在实际盘件中呈油饼状,极大地恶化了合金低周疲劳性能,且夹杂物越接近试样表面,试样的低周疲劳性能恶化越显著。热等静压+等温锻造工艺对减小三种夹杂的尺寸均有良好效果,这为人们选取合适工艺消除合金中氧化物夹杂提供了重要参考。
The sensitivity of oxide inclusions(Al_2O_3, SiO_2, and mullite) in nickel-based powder metallurgy(P/M) superalloy(FGH96) to different processing technology was studied by computed tomography(CT) technology. The results show that, the process of hot isostatic pressing + isothermal forging can significantly reduce the Al_2O_3 inclusion size and decrease the content of Al_2O_3 inclusion in FGH96 alloy; the process of hot isostatic pressing + hot extrusion + isothermal forging can effectively reduce the content of SiO_2 inclusion in the alloy; the mullite inclusions are sensitive to both the process of hot isostatic pressing + hot extrusion +isothermal forging and the process of hot isostatic pressing + isothermal forging, and the effects of the two processes are similar. The inclusions in the actual disc show the oil cake shaped, which greatly deteriorates the low cycle fatigue properties of the alloy. The closer the inclusions are to the sample surface, the more obvious the deterioration of low cycle fatigue properties is. Overall, the process of hot isostatic pressing + isothermal forging shows the good effect on reducing the inclusion size, providing an important reference to eliminate the influence of inclusions in alloys by the appropriate process.
The sensitivity of oxide inclusions(Al_2O_3, SiO_2, and mullite) in nickel-based powder metallurgy(P/M) superalloy(FGH96) to different processing technology was studied by computed tomography(CT) technology. The results show that, the process of hot isostatic pressing + isothermal forging can significantly reduce the Al_2O_3 inclusion size and decrease the content of Al_2O_3 inclusion in FGH96 alloy; the process of hot isostatic pressing + hot extrusion + isothermal forging can effectively reduce the content of SiO_2 inclusion in the alloy; the mullite inclusions are sensitive to both the process of hot isostatic pressing + hot extrusion +isothermal forging and the process of hot isostatic pressing + isothermal forging, and the effects of the two processes are similar. The inclusions in the actual disc show the oil cake shaped, which greatly deteriorates the low cycle fatigue properties of the alloy. The closer the inclusions are to the sample surface, the more obvious the deterioration of low cycle fatigue properties is. Overall, the process of hot isostatic pressing + isothermal forging shows the good effect on reducing the inclusion size, providing an important reference to eliminate the influence of inclusions in alloys by the appropriate process.
引文
[1]Reed R C.The Superalloys:Fundamentals and Applications.Cambridge:Cambridge University Press,2006
[2]Fu H,Wang M Y,Ji Z,et al.Effect of thermal deformation on prior particle boundary of FGH96 superalloy.Powder Metall Technol,2018,36(3):201(傅豪,王梦雅,纪箴,等.热变形对FGH96高温合金原始颗粒边界的影响.粉末冶金技术,2018,36(3):201)
[3]Wang M Y,Ji Z,Zhang Y F,et al.Research progress on the prior particle boundary of a powder metallurgy superalloy.Powder Metall Technol,2017,35(2):142(王梦雅,纪箴,张一帆,等.粉末高温合金中原始粉末颗粒边界研究进展.粉末冶金技术,2017,35(2):142)
[4]Zhou L,Wang Y,Zou J W.Effect of carbon content on the microstructure and mechanical properties of powder metallurgy superalloy FGH96.Powder Metall Technol,2017,35(1):46(周磊,汪煜,邹金文.C元素对FGH96粉末高温合金显微组织和力学性能的影响.粉末冶金技术,2017,35(1):46)
[5]Zou J W,Wang W X.Characteristic and quality control of inclusions in P/M superalloy.Powder Metall Technol,2001,19(1):7(邹金文,汪武祥.粉末高温合金中夹杂物特性及其质量控制.粉末冶金技术,2001,19(1):7)
[6]Xie X S,Zhang L N,Zhang M C,et al.Micro-mechanical behavior study of non-metallic inclusions in nickel-base P/M superalloy.Acta Metall Sin,2002,38(6):635(谢锡善,张丽娜,张麦仓,等.镍基粉末高温合金中夹杂物的微观力学行为研究.金属学报,2002,38(6):635)
[7]Huron E S,Roth P G.The influence of inclusions on low cycle fatigue life in a P/M nickel-base disk superalloy//The Minerals,Metals and Materials Society.Warrendale,1996:359
[8]Guo W M,Wu J T,Feng D.Research on the inclusions in Ni-base superalloy FGH95 powder.Powder Metall Technol,2001,19(1):3(国为民,吴剑涛,冯涤.镍基高温合金粉末中夹杂的研究.粉末冶金技术,2001,19(1):3)
[9]Zhou X M,Wang W X,Yang H T,et al.Character of artificial non-metallic inclusions in HIPed FGH96 alloy.JAeronaut Mater,2005,25(4):1(周晓明,汪武祥,杨洪涛,等.HIP态FGH96合金中人工加入非金属夹杂物的特征.航空材料学报,2005,25(4):1)
[10]Zhou X M,Wang D L,Wang Y,et al.Deformation behavior of non-metallic inclusions in nickel-base P/Msuperalloy.Fail Anal Prev,2008,3(3):23(周晓明,汪殿龙,汪煜,等.非金属夹杂物在镍基粉末高温合金中的变形行为.失效分析与预防,2008,3(3):23)
[11]Zeng Y P,Zhang M C,Dong J X,et al.Study on crack initiation and propagation induced by inclusion in nickel-base P/M superalloy.J Mater Eng,2005(3):10(曾燕屏,张麦仓,董建新,等.镍基粉末高温合金中夹杂物导致裂纹萌生和扩展行为的研究.材料工程,2005(3):10)
[12]Zeng Y P,Dong J X,Zhang M C,et al.Behavior of inclusions in nickel-base P/M superalloy under tensile load.J Univ Sci Technol Beijing,2005,27(2):202(曾燕屏,董建新,张麦仓,等.拉伸载荷下镍基粉末高温合金中夹杂物行为.北京科技大学学报,2005,27(2):202)
[13]Xu J,Xu Y M,Liu X L,et al.Inclusion effect on crack initiation of powder metallurgy superalloy.J Northwestern Polytech Univ,2017,35(Suppl):108(许捷,徐元铭,刘新灵,等.夹杂物对粉末高温合金材料裂纹萌生的影响.西北工业大学学报,2017,35(增刊):108)
[14]Hu D Y,Wang T,Ma Q H,et al.Effect of inclusions on low cycle fatigue lifetime in a powder metallurgy nickel-based superalloy FGH96.Int J Fatigue,2019,118:23
[15]Naragani D,Sangid M D,Shade P A,et al.Investigation of fatigue crack initiation from a non-metallic inclusion via high energy X-ray diffraction microscopy.Acta Mater,2017,137:71
[2]Fu H,Wang M Y,Ji Z,et al.Effect of thermal deformation on prior particle boundary of FGH96 superalloy.Powder Metall Technol,2018,36(3):201(傅豪,王梦雅,纪箴,等.热变形对FGH96高温合金原始颗粒边界的影响.粉末冶金技术,2018,36(3):201)
[3]Wang M Y,Ji Z,Zhang Y F,et al.Research progress on the prior particle boundary of a powder metallurgy superalloy.Powder Metall Technol,2017,35(2):142(王梦雅,纪箴,张一帆,等.粉末高温合金中原始粉末颗粒边界研究进展.粉末冶金技术,2017,35(2):142)
[4]Zhou L,Wang Y,Zou J W.Effect of carbon content on the microstructure and mechanical properties of powder metallurgy superalloy FGH96.Powder Metall Technol,2017,35(1):46(周磊,汪煜,邹金文.C元素对FGH96粉末高温合金显微组织和力学性能的影响.粉末冶金技术,2017,35(1):46)
[5]Zou J W,Wang W X.Characteristic and quality control of inclusions in P/M superalloy.Powder Metall Technol,2001,19(1):7(邹金文,汪武祥.粉末高温合金中夹杂物特性及其质量控制.粉末冶金技术,2001,19(1):7)
[6]Xie X S,Zhang L N,Zhang M C,et al.Micro-mechanical behavior study of non-metallic inclusions in nickel-base P/M superalloy.Acta Metall Sin,2002,38(6):635(谢锡善,张丽娜,张麦仓,等.镍基粉末高温合金中夹杂物的微观力学行为研究.金属学报,2002,38(6):635)
[7]Huron E S,Roth P G.The influence of inclusions on low cycle fatigue life in a P/M nickel-base disk superalloy//The Minerals,Metals and Materials Society.Warrendale,1996:359
[8]Guo W M,Wu J T,Feng D.Research on the inclusions in Ni-base superalloy FGH95 powder.Powder Metall Technol,2001,19(1):3(国为民,吴剑涛,冯涤.镍基高温合金粉末中夹杂的研究.粉末冶金技术,2001,19(1):3)
[9]Zhou X M,Wang W X,Yang H T,et al.Character of artificial non-metallic inclusions in HIPed FGH96 alloy.JAeronaut Mater,2005,25(4):1(周晓明,汪武祥,杨洪涛,等.HIP态FGH96合金中人工加入非金属夹杂物的特征.航空材料学报,2005,25(4):1)
[10]Zhou X M,Wang D L,Wang Y,et al.Deformation behavior of non-metallic inclusions in nickel-base P/Msuperalloy.Fail Anal Prev,2008,3(3):23(周晓明,汪殿龙,汪煜,等.非金属夹杂物在镍基粉末高温合金中的变形行为.失效分析与预防,2008,3(3):23)
[11]Zeng Y P,Zhang M C,Dong J X,et al.Study on crack initiation and propagation induced by inclusion in nickel-base P/M superalloy.J Mater Eng,2005(3):10(曾燕屏,张麦仓,董建新,等.镍基粉末高温合金中夹杂物导致裂纹萌生和扩展行为的研究.材料工程,2005(3):10)
[12]Zeng Y P,Dong J X,Zhang M C,et al.Behavior of inclusions in nickel-base P/M superalloy under tensile load.J Univ Sci Technol Beijing,2005,27(2):202(曾燕屏,董建新,张麦仓,等.拉伸载荷下镍基粉末高温合金中夹杂物行为.北京科技大学学报,2005,27(2):202)
[13]Xu J,Xu Y M,Liu X L,et al.Inclusion effect on crack initiation of powder metallurgy superalloy.J Northwestern Polytech Univ,2017,35(Suppl):108(许捷,徐元铭,刘新灵,等.夹杂物对粉末高温合金材料裂纹萌生的影响.西北工业大学学报,2017,35(增刊):108)
[14]Hu D Y,Wang T,Ma Q H,et al.Effect of inclusions on low cycle fatigue lifetime in a powder metallurgy nickel-based superalloy FGH96.Int J Fatigue,2019,118:23
[15]Naragani D,Sangid M D,Shade P A,et al.Investigation of fatigue crack initiation from a non-metallic inclusion via high energy X-ray diffraction microscopy.Acta Mater,2017,137:71
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |