GH4169镍基高温合金的高温低周疲劳性能
High-Temperature Low-Cycle Fatigue Properties of GH4169 Ni-based Superalloy
摘 要
对国产GH4169镍基高温合金进行了总应变控制的高温低周疲劳试验, 研究了其疲劳性能, 分析了断口形貌。结果表明: 试验合金具有较好的高温低周疲劳性能, 与进口Inconel 718镍基合金的相近, 但在较低的总应变范围下比Inconel 718合金的疲劳寿命要低; 该合金在不同总应变范围下都表现出明显的循环软化行为; 合金试样的疲劳断口呈多裂纹源性, 疲劳源数量随总应变范围的降低和疲劳寿命的延长而减少; 疲劳裂纹都萌生于表面, 穿晶扩展到一定径向深度时, 会出现沿晶扩展特征。
GH4169镍基高温合金
循环软化
裂纹扩展
high-temperature low-cycle fatigue property
GH4169 Ni-based superalloy
cyclic softening
crack propagation
Abstract
The total strain controlled high-temperature low-cycle fatigue experiments were conducted on the domestic GH4169 Ni-based superalloy. The fatigue properties of the alloy were studied and the fracture morphology was analyzed. The results show that the tested alloy had a superior low-cycle fatigue performance at elevated temperature, which was similar to that of imported Inconel 718 Ni-based alloy, but lower than the fatigue life of the Inconel 718 alloy at a relatively low total strain range. The cyclic stress softening behavior of the alloy was presented at different total strain ranges. The fatigue fractures of the alloy specimens showed a character of multi-crack sources and the crack source amounts decreased with the decrease of the total strain range and the prolonging of the fatigue life. The fatigue cracks all initiated at the specimen surface, and when propagated in an intergranular mode to a certain radial depth, showed a transgranular propagation characteristic.
中图分类号 TG146.1 DOI 10.11973/jxgccl201604007
所属栏目 材料性能及其应用
基金项目
收稿日期 2014/12/24
修改稿日期 2016/3/3
网络出版日期
作者单位点击查看
备注姚亮亮(1990-), 男,江苏南通人, 硕士研究生。
引用该论文: YAO Liang-liang,ZHANG Xian-cheng,LIU Feng,TU Shan-tung,MA Cong. High-Temperature Low-Cycle Fatigue Properties of GH4169 Ni-based Superalloy[J]. Materials for mechancial engineering, 2016, 40(4): 25～29
姚亮亮,张显程,刘峰,涂善东,马聪. GH4169镍基高温合金的高温低周疲劳性能[J]. 机械工程材料, 2016, 40(4): 25～29
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参考文献
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【16】陈鸿均, WEVER H.IN738LC镍基高温合金高温低周疲劳性能的研究［J］.材料工程,2000(11): 45-48.
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【18】周鹏杰,于金江,孙晓峰,等.M951镍基高温合金的高温高周疲劳性能［J］.机械工程材料,2013,37(7): 77-81.
【19】RAO K B S,SCHIFFERS H,SCHUSTER H.Temperature and strain-rate effects on low-cycle fatigue behavoir of alloy 800H［J］.Metallurgical and Materials Transactions: A,1996,27(2): 255-267.
【20】MA X,DUAN Z,SHI H,et al.Fatigue and fracture behavior of nickel-based superalloy Inconel 718 up to the very high cycle regime［J］.Journal of Zhejiang University-Science A,2010,11(10): 727-737.
【21】LU X D,DU J H,DENG Q,et al.Stress rupture properties of GH4169 superalloy［J］.J Mater Res Tech,2014,3(2): 107-113.
【2】SURESH.材料的疲劳［M］.王中光,译.北京: 国防工业出版社,1998: 1-22.
【3】FOURNIER D, PINERAU A. Low cycle fatigue behavior of Inconel 718 at 298 K and 823 K［J］.Metallurgical and Materials Transactions: A,1977,8(7): 1095-1105.
【4】TANKKER A B, COWLES B A.Low strain, long life creep-fatigue of AF2-1DA and INCO 718［R］.West Palm Beach, FL, USA: Pratt and Whitney Aircraft Group,1983.
【5】谢济洲.涡轮盘用IN718合金的高温低周疲劳及其裂纹扩展特性［J］.航空学报,1993,14(2): 79-85.
【6】PRAVEEN K V U,SINGH V.Effect of heat treatment on Coffin-Manson relationship in LCF of superalloy IN718［J］.Materials Science and Engineering: A,2008,485(1): 352-358.
【7】PARK S J,KIM K S,KIM H S.Ratcheting behaviour and mean stress considerations in uniaxial low-cycle fatigue of Inconel 718 at 649℃［J］.Fatigue & Fracture of Engineering Materials & Structures,2007,30(11): 1076-1083.
【8】KRISHNA E H,PRASAD K,KUMAR V,et al.Low cycle fatigue behaviour of modified and conventional superalloy Inconel 718 at 650 ℃［J］.Transactions of the Indian Institute of Metals,2010,63(1): 63-66.
【9】PRASAD K,SARKER R,GHOSAL P,et al.High temperature low cycle fatigue deformation behaviour of forged In718 superalloy turbine disc［J］.Materials Science and Engineering: A, 2013,568: 239-245.
【10】PRASAD K,SARKER R,GHOSAL P,et al.Simultaneous creep-fatigue damage accumulation of forged turbine disc of IN 718 superalloy［J］.Materials Science and Engineering: A, 2013,572: 1-7.
【11】邓波,张荣武,杨玉荣.热处理对GH4169合金组织和力学性能的影响［J］.材料工程,1993(6): 12-15.
【12】杨玉荣,梁学锋,蔡伯成.GH4169合金涡轮盘的高温低循环疲劳性能［J］.四川冶金,1999(3): 41-47.
【13】王春生,韩海军,陈立滨.离子注入对高温合金蠕变-疲劳特性的影响及寿命预测［J］.新技术新工艺,2001(3): 39-41.
【14】WEI D S,YANG X G.Investigation and modeling of low cycle fatigue behaviors of two Ni-based superalloys under dwell conditions［J］.International Journal of Pressure Vessels and Piping,2009,86(9): 616-621.
【15】洪鹤,孙家仲,陈立佳.镍基高温合金GH4049的高温低周疲劳行为［J］.沈阳工业大学学报,2003,25(2): 105-108.
【16】陈鸿均, WEVER H.IN738LC镍基高温合金高温低周疲劳性能的研究［J］.材料工程,2000(11): 45-48.
【17】黄志伟,袁福河,王中光,等.M38镍基高温合金高温低周疲劳性能及断裂机制［J］.金属学报,2007,43(10): 1025-1030.
【18】周鹏杰,于金江,孙晓峰,等.M951镍基高温合金的高温高周疲劳性能［J］.机械工程材料,2013,37(7): 77-81.
【19】RAO K B S,SCHIFFERS H,SCHUSTER H.Temperature and strain-rate effects on low-cycle fatigue behavoir of alloy 800H［J］.Metallurgical and Materials Transactions: A,1996,27(2): 255-267.
【20】MA X,DUAN Z,SHI H,et al.Fatigue and fracture behavior of nickel-based superalloy Inconel 718 up to the very high cycle regime［J］.Journal of Zhejiang University-Science A,2010,11(10): 727-737.
【21】LU X D,DU J H,DENG Q,et al.Stress rupture properties of GH4169 superalloy［J］.J Mater Res Tech,2014,3(2): 107-113.
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