Since 1963
ARTICLE
Effect of fatigue on the microhardness of scrap cross-sections after cyclic bending with torsion of RG7 bronze alloy
1
Mechanical Engineering, Opole University of Technology, Opole, Poland
These authors had equal contribution to this work
Submission date: 2025-05-19
Final revision date: 2025-07-10
Acceptance date: 2025-08-20
Online publication date: 2025-10-30
Publication date: 2025-10-30
Corresponding author
Mariusz Prażmowski
Mechanical Engineering, Opole University of Technology, Mikolajczyka 5, 45-271, Opole, Poland
Mechanical Engineering, Opole University of Technology, Mikolajczyka 5, 45-271, Opole, Poland
KEYWORDS
TOPICS
ABSTRACT
This work analyzes the effect of fatigue on the microhardness of the fracture plane of bronze samples. The analysis will be based on tests under conditions of cyclic bending, cyclic torsion, and two combinations of bending and torsion of samples made of RG7 bronze. All tests were
performed at zero mean stress. The fracture plane was divided into a grid at 0.4mm intervals, and local microhardness values were determined. On this basis, contour lines of microhardness were determined. The analysis of these contours on the surface showed that the most significant increase in the maximum microhardness in relation to the starting material was obtained for the static tension and cyclic bending tests. However, for the combination of cyclic bending and torsion, a minimal influence of shear stress in the maximum microhardness was obtained.
REFERENCES (25)
1.
Assi, A.D., & Alkalali, R.H.M. (2021). Fatigue limit prediction based on hardness for both steel and aluminum alloys. IOP Conference Series: Materials Science and Engineering, 1105, Article 012044. https://doi.org/10.1088/1757-8....
2.
Bandara, C.S., Siriwardane, S.C., Dissanayake, U.I., & Dissanayake, R. (2015). Developing a full range S-N curve and estimating cumulative fatigue damage of steel elements. Computational Materials Science, 96 (Part A), 96–101. https://doi.org/10.1016/j.comm....
3.
Bandara, C.S., Siriwardane, S.C., Dissanayake, U.I., & Dissanayake, R. (2016). Full range S–N curves for fatigue life evaluation of steels using hardness measurements. International Journal of Fatigue, 82 (Part 2), 325–331. https://doi.org/10.1016/j.ijfa....
4.
Derda, S., Karolczuk, A., Prażmowski, M., Kurek, A., Wachowski, M., & Paul, H. (2022). Fatigue life and cyclic creep of tantalum/copper/steel layerwise plates under tension loading at room temperature. International Journal of Fatigue, 162, Article 106977. https://doi.org/10.1016/j.ijfa....
5.
Görzen, D., Ostermayer, P., Lehner, P., Blinn, B., Eifler, D., & Beck, T. (2022). A new approach to estimate the fatigue limit of steels based on conventional and cyclic indentation testing. Metals, 12 (7), Article 1066. https://doi.org/10.3390/met120....
6.
Hong, S.I. (2018). Criteria for predicting twin-induced plasticity in solid solution copper alloys. Materials Science and Engineering: A, 711, 492–497. https://doi.org/10.1016/j.msea....
7.
James, M.N., Ting, S.-P., Bosi, M., Lombard, H., & Hattingh, D.G. (2009). Residual strain and hardness as predictors of the fatigue ranking of steel welds. International Journal of Fatigue, 31 (8–9), 1366–1377. https://doi.org/10.1016/j.ijfa....
8.
Kloos, K.H., & Velten, E. (1984). Calculation of the fatigue strength of plasma nitrided componentlike samples taking into account the hardness and residual stress profile (in German). Konstruktion, 36 (5), 181–8.
9.
Kondo, Y., Sakae, C., Kubota, M., & Kudou, T. (2003). The effect of material hardness and mean stress on the fatigue limit of steels containing small defects. Fatigue & Fracture of Engineering Materials & Structures, 26 (8), 675–682. https://doi.org/10.1046/j.1460....
10.
Kurek, A., Kurek, M., & Łagoda, T. (2019). Stress-life curve for high and low cycle fatigue. Journal of Theoretical and Applied Mechanics, 57 (3), 677–684. http://doi.org/10.15632/jtam-p....
11.
Li, Z., Wang, Q., Luo, A.A., Fu, P., & Peng, L. (2015). Fatigue strength dependence on the ultimate tensile strength and hardness in magnesium alloys. International Journal of Fatigue, 80, 468–476. https://doi.org/10.1016/j.ijfa....
12.
Lim, C.-B., Kim, K.S., & Seong, J.B. (2009). Ratcheting and fatigue behavior of a copper alloy under uniaxial cyclic loading with mean stress. International Journal of Fatigue, 31 (3), 501–507. https://doi.org/10.1016/j.ijfa....
13.
Małecka, J., & Łagoda, T. (2024). Use of the biaxial coefficient in determining life for a combination of cyclic bending and torsion of bronze RG7. Journal of Theoretical and Applied Mechanics, 62 (3), 547–560. https://doi.org/10.15632/jtam-....
14.
Małecka, J., Łagoda, T., Głowacka, K., & Vantadori, S. (2023). Influence of plastic deformations on both yield strength and torsional fatigue life of non-ferrous alloys. Fatigue & Fracture of Engineering Materials & Structures, 46 (6), 2080–2095. https://doi.org/10.1111/ffe.13....
15.
Mitchell, M.R. (1996). Fundamentals of modern fatigue analysis for design. In ASM Handbook Committee (Eds.), ASM Handbook: Vol. 19. Fatigue and Fracture (pp. 227–249). ASM International. https://doi.org/10.31399/asm.h...
16.
Pang, J.C., Li, S.X., Wang, Z.G., & Zhang, Z.F. (2014). Relations between fatigue strength and other mechanical properties of metallic materials. Fatigue & Fracture of Engineering Materials & Structures, 37 (9), 958–976. https://doi.org/10.1111/ffe.12....
17.
Pang, J.C., Li, S.X., & Zhang, Z.F. (2013). High-cycle fatigue and fracture behaviours of Cu-Be alloy with a wide strength range. Fatigue & Fracture of Engineering Materials & Structures, 36 (2), 168–176. https://doi.org/10.1111/j.1460....
18.
Pavlou, D.G. (2002). A phenomenological fatigue damage accumulation rule based on hardness increasing, for the 2024-T42 aluminum. Engineering Structures, 24 (11), 1363–1368. https://doi.org/10.1016/S0141-....
19.
Roessle, M.L., & Fatemi, A. (2000). Strain-controlled fatigue properties of steels and some simple approximations. International Journal of Fatigue, 22 (6), 495–511. https://doi.org/10.1016/S0142-....
20.
Rogachev, S.O., Shelest, A.E., Perkas, M.M., Andreev, V.A., Tabachkova, N.Yu., Yusupov, V.S., Ten, D.V., Isaenkova, M.G., & Krymskaya, O.A. (2023). Effect of alternating bending on structure, texture, and mechanical properties of Cu–Zn alloy. Journal of Materials Engineering and Performance, 33 (3), 1241–1249. https://doi.org/10.1007/s11665....
21.
Shamsaei, N., & Fatemi, A. (2009). Effect of hardness on multiaxial fatigue behaviour and some simple approximations for steels. Fatigue & Fracture of Engineering Materials & Structures, 32 (8), 631–646. https://doi.org/10.1111/j.1460....
22.
Shiozawa, K., & Sakai, T. et al. (1996). Databook on fatigue strength of metallic materials (Vols. 1-3). Elsevier & JSMSS.
23.
Sriraman, K.R., Raman, S.G.S., & Seshadri, S.K. (2007). Influence of crystallite size on the hardness and fatigue life of steel samples coated with electrodeposited nanocrystalline Ni–W alloys. Materials Letters, 61 (3), 715–718. http://doi.org/10.1016/j.matle....
24.
Xin, H., Correia, J.A.F.O., Veljkovic, M., Berto, F., & Manuel, L. (2021). Residual stress effects on fatigue life prediction using hardness measurements for butt-welded joints made of high strength steels. International Journal of Fatigue, 147, Article 106175. https://doi.org/10.1016/j.ijfa....
25.
You, J.-H., & Miskiewicz, M. (2008). Material parameters of copper and CuCrZr alloy for cyclic plasticity at elevated temperatures. Journal of Nuclear Materials, 373 (1–3), 269–274. https://doi.org/10.1016/j.jnuc....
| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
