Citation: | YU Mingming, HAN Guangzhao, XIE Xiaoyuan, CAI Lixun. Study on Low Cycle Fatigue Properties at Elevated Temperature of N06230 Alloy Based on Sheet-Funnel Specimen[J]. Materials and Mechanical Engineering, 2024, 48(1): 99-105. DOI: 10.11973/jxgccl202401016 |
Sheet-funnel specimens and matched curved sheet fixtures were designed, and low cycle fatigue tests at elevated temperature of 650 ℃ were carried out on domestic and imported N06230 alloy tube sheet-funnel specimens, The cyclic stress amplitude-strain amplitude relation parameter model was established based on test data and energy density equivalent method. The model constants were obtained by finite element method, and the accuracy of the model was verified. The stress amplitude-strain amplitude curves, strain amplitude-life curves and Manson-Coffin law parameters of the two alloy tubes were obtained by the model, and the fatigue properties of the two alloy tubes were compared. The results show that the stress amplitude-strain amplitude curves obtained by the sheet-funnel specimen low cycle fatigue testing data and the determined constants of cycle stress amplitude-strain amplitude relation parameter model was in good agreement with those pre-inputted in finite element analyse, and the fitting goodness was higher than 0.98, indicating that the generalizability and accuracy of the model for predicting the cyclic stress amplitude-strain amplitude relation of materials. The cyclic stress amplitude-strain amplitude curves and fatigue properties of domestic N06230 alloy tubes were close to those of imported tubes.
[1] |
王伟, 吕春堂, 刘兵, 等. Haynes 230镍基超合金高温低周疲劳寿命预测[J]. 压力容器, 2018, 35(5): 22-27.
WANG W, LV C T, LIU B, et al. Prediction of high temperature low cycle fatigue life of Haynes 230 nickel-base superalloy[J]. Pressure Vessel Technology, 2018, 35(5): 22-27.
|
[2] |
LIU Y, HU R, LI J S, et al. Characterization of hot deformation behavior of Haynes230 by using processing maps[J]. Journal of Materials Processing Technology, 2009, 209(8): 4020-4026.
|
[3] |
FREDRIKSSON K, MELANDER A, HEDMAN M. Influence of prestraining and ageing on fatigue properties of high-strength sheet steels[J]. International Journal of Fatigue, 1988, 10(3): 139-151.
|
[4] |
MARTIN J F. Cyclic stress-strain and fatigue properties of sheet steel as affected by load spectra[J]. Journal of Testing and Evaluation, 1983, 11(1): 66-74.
|
[5] |
尹涛, 蔡力勋, 陈辉, 等. 基于毫小薄片试样获取材料应变疲劳性能的测试方法[J]. 机械工程学报, 2018, 54(10): 68-77.
YIN T, CAI L X, CHEN H, et al. New test method to obtain strain fatigue properties of materials based on millimeter-scaled slice specimens[J]. Journal of Mechanical Engineering, 2018, 54(10): 68-77.
|
[6] |
尹涛, 蔡力勋, 陈辉, 等. TA17合金薄片材料毫小试样疲劳性能研究[J]. 工程力学, 2018, 35(11): 206-215.
YIN T, CAI L X, CHEN H, et al. Study on fatigue properties of TA17 alloy slice by millimeter-sized specimen[J]. Engineering Mechanics, 2018, 35(11): 206-215.
|
[7] |
刘勤, 蔡力勋, 陈辉. 用于薄片试样弹塑性应力-应变分析的半解析方法[J]. 航空学报, 2018, 39(11): 222180.
LIU Q, CAI L X, CHEN H. A semi-analytical method for elastoplastic stress-strain analysis of thin sheet specimens[J]. Acta Aeronautica et Astronautica Sinica, 2018, 39(11): 222180.
|
[8] |
LIU Q, CAI L X, CHEN H, et al. A novel test method based on small specimens for obtaining low-cycle-fatigue properties of materials[J]. Mechanics of Materials, 2019, 138: 103153.
|
[9] |
COFFIN L F Jr. A study of the effects of cyclic thermal stresses on a ductile metal[J]. Journal of Fluids Engineering, 1954, 76(6): 931-949.
|
[10] |
MANSON S S. Fatigue: A complex subject—Some simple approximations[J]. Experimental Mechanics, 1965, 5(4): 193-226.
|
[11] |
CHEN H, CAI L X. Unified elastoplastic model based on a strain energy equivalence principle[J]. Applied Mathematical Modelling, 2017, 52: 664-671.
|
[12] |
CHEN H, CAI L X. An elastoplastic energy model for predicting the deformation behaviors of various structural components[J]. Applied Mathematical Modelling, 2019, 68: 405-421.
|
[13] |
CHEN H, CAI L X. Theoretical model for predicting uniaxial stress-strain relation by dual conical indentation based on equivalent energy principle[J]. Acta Materialia, 2016, 121: 181-189.
|