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    • Novel approach in experimental and statistical investigations on titanium matrix composite

      SOUTRIK BOSE TITAS NANDI

      Volume 44 Published: 20 February 2021 Article ID 0046

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/044/0046

    • Keywords

       

      Desirable grey relational analysis; response surface methodology; microstructure; laser engineering net shaping; wire electro-discharge machining; multi-objective optimization.

    • Abstract

       

      Titanium matrix composite (TMC) is comprehensively used in aerospace, turbo-machinery, automobiles and bio-medical industries for its improved strength properties and wear, corrosion and fatigue resistance. The major aim ofthis paper is to focus on the development of the current state-of-art of improving the tribo-mechanical properties by developing the TMC through laser engineering net shaping (LENS) process. A novel approach has been proposed in the multi-objective optimization (MOO) technique by combining grey relational analysis with desirability, named as desirable grey relational analysis (DGRA). The main advantage of incorporating such, is to include the predicted responses obtained by response surface methodology (RSM) with the actual experimental performances. Advanced non-traditional machining like wire electro-discharge machining (WEDM) has been used for the experimental runs on the developed TMC by varying power ($P$), time off ($T_{\rm off}$) and peak current ($IP$) as chief input process parameters. Box–Behnken design (BBD) model has been projected to obtain MOO on key performance measures, like material removal rate (MRR), surface roughness (SR), kerf width (KW) and over cut (OC). The optimized solution is improved by 1.022% when compared with desirability approach to novel DGRA technique. MRR is enhanced by 1.463%, SR by 13.221%, KW by 1.594% and OC by 6.025% when compared with DGRA method.

    • Author Affiliations

       

      SOUTRIK BOSE1 2 TITAS NANDI2

      1. Department of Mechanical Engineering, MCKV Institute of Engineering, Howrah 711204, India
      2. Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India

    • Dates

       
      Published
      20 February 2021
      Manuscript received
      1 July 2020
      Accepted
      17 September 2020
      Final version published online
      20 February 2021

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

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      Posted on July 25, 2019

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