Temperature evolution and fatigue properties prediction for high cycle fatigue of magnesium alloy under alternate loading

被引：0

作者：

College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China ^{[1
]}

机构：

[1] College of Materials Science and Engineering, Taiyuan University of Technology

来源：

Wang, W.-X. (wwx960@126.com) | 1600年 / Beijing Institute of Aeronautical Materials (BIAM)卷

关键词：

AZ31B magnesium alloy; Fatigue property; Temperature evolution; Thermographic technology;

D O I：

10.3969/j.issn.1001-4381.2014.01.016

中图分类号：

学科分类号：

摘要：

High-cycle fatigue damage process of AZ31B magnesium alloy at room temperature was studied based on thermographic technology. An infrared-thermography camera was used to investigate the temperature evolution on the surface of material during fatigue experiments. Results show that the temperature evolution mainly undergoes five stages under fatigue loading: an initial increase, steep reduces, steady-state, an abrupt increase and final drop (stage V). Theoretical model combining the thermoelastic, inelastic, and heat-transfer effects will be formulated to explain the temperature profiles observed during fatigue. The relative error of fatigue limits between the experimental result (108 MPa) and the predicted result (113 MPa) is 4.8%. ΔTmax-N curve was proposed to predict the fatigue life based on the temperature evolution during the fatigue experiments. The fatigue fracture and the fatigue life will be predicted by maximum temperature rise of first stage.

引用

页码：85 / 89

页数：4

共 18 条

[1]

pp. 1-3, (2005)

[2]

Xiong Y., Cheng L.X., Multial fatigue life prediction for extruded AZ31B magnesium alloy, Acta Metallurgica Sinica, 48, 12, pp. 1446-1452, (2012)

[3]

Guo X.L., Wang X.G., Overview on the thermographic method for fatigue research, Advances in Mechanics, 39, 2, pp. 217-227, (2009)

[4]

La Rosa G., Risitano A., Thermographic methodology for rapid determination of the fatigue limit of materials and mechanical components, International Journal of Fatigue, 22, 1, pp. 65-73, (2000)

[5]

Luong M.P., Infrared thermographic scanning of fatigue in metals, Nuclear Engineering Design, 158, 223, pp. 363-368, (1995)

[6]

Liu H., Zhao J., Ding H., Experimental study on heat production mechanism during fatigue process, Journal of Experimental Mechanics, 23, 1, pp. 1-8, (2008)

[7]

Yan Z.F., Zhang H.X., Wang W.X., Et al., Temperature evolution and fatigue life evaluation of AZ31B magnesium alloy based on infrared thermography, Transactions of Nonferrous Metals Society of China, 23, 7, pp. 1942-1948, (2013)

[8]

Jiang L., Wang H., Liaw P.K., Et al., Temperature evolution and life prediction in fatigue of superalloys, Metallurgical and Materials Transactions A, 35, 3, pp. 839-848, (2004)

[9]

(2006)

[10]

(2009)

← 1 2 →