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  1. Kemal, D.G, Tolcha, A.  Bogale, T. M,  Mokonone, S. T , 2025. High Frequency Induction Welding of Tube Pipe Under Cold Roll Forming, Springer, pp. 53–76. Link: https://books.google.de/books?hl=en&lr=&id=7qd_EQAAQBAJ&
  2. Muleta, B.B,  Tolcha M.A, and Lemu, H. G, 2025. Analysis of Boiler Tube Failures and Root Causes Using Macroscopic Characterization Techniques, J. High Temperature Corrosion of mater. 102, 25 (2025). https://doi.org/10.1007/s11085-025-10346
  1. Ymer, E, T,  Lemu Hirpa G. L, Tolcha M. A, 202 Identification of the key material degradation mechanisms affecting silicon solar cells: Systematic literature review. J Results in Engineering, 27, pp.106113. link: https://doi.org/10.1016/j.rineng.2025.106113
  2. Bethelehem B. B, Lemu, H. G,  Olu, E. F, Tolcha, M. A, Joseph, A, and Tiwary, C, 2025. Cellulose fiber (palm fiber and teff straw) reinforced 3D printed composites with enhanced fracture resistance, J Today Commun, 46, pp.112944. link: https://doi.org/10.1016/j.mtcomm.2025.112944
  3. Tolcha, M. A, Altenbach H and Konstantin N, 2025. Investigation of microstructural evolution and thermo-mechanical behaviour of inconel 718 alloy under wire arc additive manufacturing process, J Acta Material, 230, 1-25. link:
  4. Tolcha, M. A, Lemu H.G and Adugna, YW, 2025. Optimizing economics of machining for LM25Al/VC composite material using analytical modelling, deep neural network and GRA coupled with RSM, J. Scientific report, 15, 1-18 link: https://www.nature.com/articles/s41598-025-95446-4
  5. Tolcha, M .A, Tensay, M. G and Lemu H.G, 2024. Enhancing mechanical properties of cast ingot Al6061 alloy using ECAP Process, J. Mater. Eng. and Perfor, 33, 1-14 : https://scholar.google.com/citations?view_op=view_citation&hl=en&user=j_M1VhcAAAAJ&sortby=pubdate&citation_for_view=j_M1VhcAAAAJ:dhFuZR0502QC
  6. Tolcha, M. A, and Lemu H.G, 2024. Modeling thermo-mechanical fatigue for rolling die under continuous casting process, J. result in Eng, 23, 1-13 link: https://doi.org/10.1016/j.rineng.2024.102577
  7. Tolcha, M. A and Lemu H.G, 2024. Parametric optimizing of electro-discharge machining for LM25Al/VC composite material machining using deterministic and stochastic methods, J Adv Manuf Techn, 134,1-26. link: https://link.springer.com/article/10.1007/s00170-024-13221-7
  8. Tolcha, M. A and Lemu H.G, 2023. Utilizing multiple criteria decision-making optimization methods to machine LM25Al/VC material under electro-discharge machining processes, IOP Conf. Ser.: Mater. Sci. Eng. vol. 1323,  1294 012049  link: https://iopscience.iop.org/article/10.1088/1757-899X/1294/1/012049/meta
  9. Gudeta, O K, Tolcha, M. A,  Badasa TD and  Koricho EG, 2023. Fracture toughness analysis of a woven sisal-glass fiber hybrid composite, Conf. Ser.: Mater. Sci. Eng. 1294 012049 link: https://iopscience.iop.org/article/10.1088/1757-899X/1294/1/012053/meta
  10. Tolcha, M. A, Ademe, G. A, Jelila, Y.D, Jiru, M.G and H Lemu, H.G, 2022. Analyzing the effect of vibration on crack growth on shaft using fuzzy logic, J Meccanica, 5, 2929–2946 link: https://link.springer.com/article/10.1007/s11012-022-01609-2
  11. Getachew A. A., Hirpa G. L, Tolcha, M. A, 2022.  Contact temperature analysis of the classical Geneva mechanism through numerical methods. Mater Today: Procedings, 57, 545-552 link: https://doi.org/10.1016/j.matpr.2022.01.420
  12. Yeshanew, A, Jiru, M. G,  Lemu, H .G,  Tolcha, M.A, 2022  Internal corrosion damage mechanisms of the underground ferrous water pipelines.  Advances in science and technology research journal, 16(3), 111–123. Link. 10.12913/22998624/149369
  13. Tolcha, M. A, Gutu Jiru, M. and Lemu, H.G., 2021. Experimental Investigation of Al-CuMgMn Alloy developed by laser beam surface modification for wear resistance. Metals, 11(5), p.712. link: https://doi.org/10.3390/met11050712
  14. Fakada D. Gurmesa, H.G. Lemu, W.M. Tucho and B.B. Muleta (2025)
    Impact of wire diameter on microstructure and hardness of Inconel 625 fabricated by wire arc additive manufacturing, Journal of Materials Research and Technology, 37, 5423–5435. https://doi.org/10.1016/j.jmrt.2025.07.175.
  15. D. Gurmesa, H.G. Lemu, W.M. Tucho and A.D. Akessa (2025) Effects of wire diameter on mechanical and microstructural properties of Inconel 625 fabricated by wire arc additive manufacturing, Journal of Materials Research and Technology,vol. 35, 3226–3235. https://doi.org/10.1016/j.jmrt.2025.02.025.
  16. D. Gurmesa, H.G. Lemu (2023) Literature Review on Thermomechanical Modelling and Analysis of Residual Stress Effects in Wire Arc Additive Manufacturing, Metals 13(3), 526
  17. Gurmesa, F.D.; Lemu, H.G.; Adugna, Y.W.; Harsibo, M.D. Residual Stresses in Wire Arc Additive Manufacturing Products and Their Measurement Techniques: A Systematic Review.  Mech.2024, 5, 420-449.  https://doi.org/10.3390/applmech5030025
  1. A. Kedir, H.G. Lemu (2023) Prediction of Fatigue Crack Initiation under Variable Amplitude Loading: Literature Review, Metals13(3), 487.
  2. D Tura, HG Lemu, LE Melaku, HB Mamo (2023) Impact of FDM 3D Printing Parameters on Compressive Strength and Printing Weight of PLA ComponentsA, Advanced Manufacturing and AutomationXII, 495-504
  3. D. Tura, H.G. Lemu and H.B. Mamo (2022) Experimental Investigation and Prediction of Mechanical    Properties in a Fused Deposition Modeling Process, Crystals(MDPI Journal), vol. 12, 844, https://doi.org/10.3390/cryst12060844
  1. Irena, Kitesa Akewaq; Lemu, Hirpa G.; Kedir, Yahiya Ahmed (2023), Effect of Interference Size on Contact Pressure Distribution of Railway Wheel Axle Press Fitting. Designs 2023;Vol. 7(5), 119, https://doi.org/10.3390/designs7050119
  2. Kedir, Yahiya Ahmed; Lemu, Hirpa G. (2023),Prediction of Fatigue Crack Initiation under Variable Amplitude Loading: Literature Review. Metals 2023;Vol. 13(3), 487
    https://doi.org/10.3390/met13030487
  1. Yadeta, L.; Lemu, Hirpa G.; Tadese, A.K.M. (2023),Numerical analysis of centrifugal water pump impeller under varying loads. Proc. of 4th Conference of Computational Methods & Ocean Technology, Stavanger, Nov. 30 – Dec. 1, 2023, IOP Conference Series: Materials Science and Engineering2023;Vol. 1294, 012022. Doi: 1088/1757-899X/1294/1/012022