Wear Behavior Analysis of Aisi440 Martensitic Steel by Annealing and Tempering Process 
K. Lokesh1, M. Mamatha Gandhi2, S. Ravi Sekhar3, N. Sateesh4, Ram Subbiah5
1Mr. K. Lokesh*, Pursuing his M. Tech Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad, India.
2Ms.M.Mamatha Gandhi, Assistant Professor of Department of Mechanical Engineering, Affiliated to JNTU Kakinada, India.
3Dr S. Ravi Sekhar, Assistant Professor of Department of Mechanical Engineering, Acharya Nagarjuna University Guntur, (Andhra Pradesh), India.
4Dr. N. Sateesh, HOD & Professor of Department of Mechanical Engineering, Nagarguna University, Master degree from JNTUH, Hyderabad, India.
5Dr.Ram Subbiah, Associate Professor of Mechanical Engineering, SRM University, Chennai, India.
Manuscript received on September 26, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 1012-1017 | Volume-9 Issue-1, October 2019 | Retrieval Number: A9460109119/2019©BEIESP | DOI: 10.35940/ijeat.A9460.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Experiments on the wear behavior of AISI440 steel were conducted and the specimens were subjected to annealing process, followed by tempering. AISI440 is a martensitic stainless steel which is used in many applications due to their hardness and wear resistance. AISI440 is subjected to Annealing and Tempering processes at different temperatures like 500, 600 and 7000C. The result showed a lath of martensite and retained austenite. After tempering the microstructure consists of mixtures of tempered martensite, carbides and reversed austenite dispersed in the martensite matrix obtaining the strength and toughness in the steel. The metallographic studies were compared with scanning electron microscope results.
Keywords: AISI 440, Martensitic steel, Annealing, tempering, Microstructure.