加载频率对FV520B-I钢超高周疲劳性能的影响
Effect of Loading Frequency on Fatigue Property of FV520B-I Steel in Super High Cycle Regime
摘 要
采用超声疲劳试验方法和常规疲劳试验方法，对FV520B-I钢在20 kHz和140 Hz频率下的超高周疲劳性能进行了研究，分析了加载频率对FV520B-I钢超高周疲劳性能的影响，并基于Basquin方程对超声疲劳试验数据进行了修正。结果表明：在应力幅值相同的情况下，试验钢的疲劳寿命随加载频率的提高而增加，而疲劳强度随加载频率的提高而降低；常规疲劳试验和超声疲劳试验下试验钢的疲劳断裂机制和断口形貌基本相同；修正后的超声疲劳试验数据与常规疲劳试验数据具有较好的相容性。
超高周疲劳
加载频率
数据修正
FV520B-I steel
super high cycle fatigue
loading frequency
data correction
Abstract
The super high cycle fatigue property of FV520B-I steel was studied by ultrasonic and conventional fatigue test method with frequency of 20 kHz and 140 Hz, respectively. The influence of loading frequency on super high cycle fatigue property of FV520B-I steel was investigated, and the ultrasonic fatigue testing data was corrected based on Basquin formula. The results show that the fatigue life of FV520B-I steel increased with increase of loading frequency when stress amplitude was the same, while fatigue strength was decreased. The fatigue fracture mechanism and fracture morphology of FV520B-I steel in ultrasonic fatigue test were almost the same with that in conventional fatigue test. The corrected ultrasonic fatigue test data had a good compatibility with conventional fatigue test data.
中图分类号 TG115.5 DOI 10.11973/jxgccl201707013
所属栏目 材料性能及应用
基金项目 国家重点基础研究发展计划项目（2011CB013400）；国家自然科学基金资助项目（51475077）
收稿日期 2016/2/28
修改稿日期 2017/5/27
网络出版日期
作者单位点击查看
备注石博文(1989-),男,山东德州人,硕士研究生
引用该论文: SHI Bowen,JIANG Yingjie,SUN Qingchao. Effect of Loading Frequency on Fatigue Property of FV520B-I Steel in Super High Cycle Regime[J]. Materials for mechancial engineering, 2017, 41(7): 66～69
石博文,姜英杰,孙清超. 加载频率对FV520B-I钢超高周疲劳性能的影响[J]. 机械工程材料, 2017, 41(7): 66～69
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参考文献
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【2】BATHIAS C, DROUILLAC L, FRANÇOIS P L. How and why the fatigue S-N curve does not approach a horizontal asymptote[J]. International Journal of Fatigue, 2001, 23(1):143-151.
【3】MARINES-GARCIA I, PARIS P C, TADA H, et al. Fatigue crack growth from small to large cracks on very high cycle fatigue with fish-eye failures[J]. Engineering Fracture Mechanics, 2008, 75(6):1657-1665.
【4】MARINES I, BIN X, BATHIAS C. An understanding of very high cycle fatigue of metals[J]. International Journal of Fatigue, 2003, 25(9):1101-1107.
【5】LI S X. Effects of inclusions on very high cycle fatigue properties of high strength steels[J]. International Materials Reviews, 2002, 57(2):92-114.
【6】HOLPER B, MAYER H, VASUDEVAN A K, et al. Near threshold fatigue crack growth in aluminium alloys at low and ultrasonic frequency:influences of specimen thickness, strain rate, slip behaviour and air humidity[J]. International Journal of Fatigue, 2003, 25(5):397-411.
【7】STANZL-TSCHEGG S. Fatigue crack growth and thresholds at ultrasonic frequencies[J]. International Journal of Fatigue, 2006, 28(11):1456-1464.
【8】SERVER W L. General yielding of charpy v-notch and precracked charpy specimens[J]. Journal of Engineering Materials and Technology, 1978, 100(2):183-188.
【9】薛红前,陶华. 20 kHz频率下高强度钢超高周疲劳研究[J]. 机械工程材料, 2005, 29(5):12-15.
【10】LAIRD C, CHARSLEY P. Strain rate sensitivity effects in cyclic deformation and fatigue fracture[J]. International Journal of Fatigue, 1982(4):239-240.
【11】PAPAKYRIACOU M, MAYER H, PYPEN C, et al. Influence of loading frequency on high cycle fatigue properties of b.c.c. and h.c.p. metals[J]. Materials Science and Engineering, 2001, 308(1/2):143-152.
【12】STANZL-TSCHEGG S. Fatigue crack growth and thresholds at ultrasonic frequencies[J]. International Journal of Fatigue, 2006, 28(11):1456-1464.
【13】倪金刚. 超声振动载荷下合金的疲劳裂纹扩展性能研究[J]. 航空动力学报, 1994, 9(3):298-300.
【14】BATHIAS C, PARIS P. Gigacycle fatigue in mechanical practice[M]. New York:Marcel Dekker, 2005:53-57.
【15】BAZANT Z P. Size effect in blunt fracture:concrete, rock, metal[J]. Journal of Engineering Mechanics, 1984, 110(4):518-535.
【16】CARPINTERI A. Decrease of apparent strength tensile and bending strength with specimen size:two different explanations based on fracture mechanics[J]. International Journal of Solids and Structures, 1989, 25(4):407-429.
【17】薛红前, 杨斌堂, BATHIAS C. 高频载荷下高强钢的超高周疲劳及热耗散研究[J]. 材料工程, 2009, 30(3):49-53.
【18】YANG Z G, LI S X, LIU Y B, et al. Estimation of the size of GBF area on fracture surface for high strength steels in very high cycle fatigue regime[J]. International Journal of Fatigue, 2008, 30(6):1016-1023.
【19】王清远, 宁交贤. 超长寿命热-超声疲劳行为[J]. 实验力学, 2002, 17(4):483-487.
【20】BASQUIN O H. The exponential law of endurance tests[J]. Proceedings of the American Society for Testing and Materials, 1910, 10(6):25-30.
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