Deformation and Densification Behaviour of Sintered Aluminium Alloy and Chromium Carbide Metal Matrix Preforms

Open Access

Year : 2025 | Volume : 13 | Special Issue 01 | Page : 125 131
    By

    Naga Venkata Srinivas Borra,

  • Veera Venkata Krishna Prasad Davuluri,

  • Sarella Naresh Kumar,

  • Dorathi kare,

  • M. Venkata Kiran Kumar,

  • Ksbsvs Sastry,

  • SK. Arief,

  1. Research Scholar, Department of Mechanical Engineering, Acharya Nagarjuna University, Guntur – 522510, Andhra Pradesh, India
  2. Professor, Department of Mechanical Engineering, R V R & J C College of Engineering, Guntur, Andhra Pradesh, India
  3. Assistant Professor, Department of Mechanical Engineering, Vardhaman College of Engineering, Hyderabad, Telangana, India
  4. Assistant Professor, Department of Mechanical Engineering, Sri Vasavi Engineering College, Tadepalligudem, Andhra Pradesh, India
  5. Assistant Professor, Department of Mechanical Engineering, Sasi Institute of Technology and Engineering, Tadepalligudem, Andhra Pradesh, India
  6. Assistant Professor, Department of Mechanical Engineering, Sri Vasavi Engineering College, Tadepalligudem, Andhra Pradesh, India
  7. Assistant Professor, Department of Mechanical Engineering, Sri Vasavi Engineering College, Tadepalligudem, Andhra Pradesh, India

Abstract

This paper presents comprehensive experimental results focused on the deformation and densification behavior of sintered AA2618 – 2% Cr3C2 metal matrix preforms. The study specifically examines preforms with varying aspect ratios subjected to a cold upsetting process. To create the powder preforms, an initial theoretical density of 89% was achieved using a cylindrical die on a 600 kN hydraulic press. The sintering process was conducted in an electric muffle furnace, where the preforms were heated to a temperature of 530 °C for a duration of 90 minutes. This heat treatment is crucial for achieving the desired micro structural properties of the composite. Once sintering was complete, each compact was subjected to a carefully controlled incremental compressive load of 0.05 MN. This loading continued until a visible crack appeared on the free surface of the material, indicating the onset of failure. The choice of cold upsetting as the experimental method was driven by its effectiveness in evaluating the mechanical performance of composite preforms. Through this method, the study aims to gain valuable insights into the deformation characteristics and densification processes of the AA2618 – 2% Cr3C2 composites, contributing to a better understanding of their potential applications in various engineering fields. The findings revealed that the AA2618 – 2% Cr3C2 composite with an aspect ratio of 0.5 exhibited a higher relative density compared to composites with other aspect ratios. This increased relative density is significant as it correlates with improved formability stress index and, consequently, enhanced workability. In summary, the results suggest that the specific aspect ratio of 0.5 provides the best combination of density and workability for this composite material, making it a favorable choice for applications requiring superior mechanical performance.

Keywords: Powder metallurgy; 2% Cr3C2; Metal matrix composites; cold upsetting; Density; Sintering

[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]

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How to cite this article:
Naga Venkata Srinivas Borra, Veera Venkata Krishna Prasad Davuluri, Sarella Naresh Kumar, Dorathi kare, M. Venkata Kiran Kumar, Ksbsvs Sastry, SK. Arief. Deformation and Densification Behaviour of Sintered Aluminium Alloy and Chromium Carbide Metal Matrix Preforms. Journal of Polymer and Composites. 2024; 13(01):125-131.
How to cite this URL:
Naga Venkata Srinivas Borra, Veera Venkata Krishna Prasad Davuluri, Sarella Naresh Kumar, Dorathi kare, M. Venkata Kiran Kumar, Ksbsvs Sastry, SK. Arief. Deformation and Densification Behaviour of Sintered Aluminium Alloy and Chromium Carbide Metal Matrix Preforms. Journal of Polymer and Composites. 2024; 13(01):125-131. Available from: https://journals.stmjournals.com/jopc/article=2024/view=187992


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Special Issue Open Access Original Research
Volume 13
Special Issue 01
Received 02/08/2024
Accepted 09/09/2024
Published 06/12/2024
Publication Time 126 Days
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