American Journal of Mechanical and Materials Engineering

Volume 4, Issue 2, June 2020

  • The Characterization of Libyan Raw Dolomite Samples Using Chemical Techniques

    Alzadma Himed, Mousa May, Balhassn Ali

    Issue: Volume 4, Issue 2, June 2020
    Pages: 18-25
    Received: 15 February 2020
    Accepted: 9 March 2020
    Published: 12 May 2020
    Abstract: Dolomite known as dolostone is a double carbonate of calcium and magnesium, CaCO3. MgCO3. After calcite, it is the second most important and abundant of the carbonate minerals. This work aims at processing, investigation and characterization of four different Libyan raw dolomite samples via simple chemical method. Based on a previous geological sur... Show More
  • Metallurgical Analyses of Welding Using a Developed Mini-Robot

    Oladebeye Dayo Hephzibah, Adejuyigbe Samuel Babatope, Kareem Biliyaminu

    Issue: Volume 4, Issue 2, June 2020
    Pages: 26-36
    Received: 10 May 2020
    Accepted: 25 May 2020
    Published: 15 June 2020
    Abstract: This research work addressed the mechanical and microstructural properties of welded joints. The results show the minimum average hardness values as 133.83, 102.13, 103.42, 95.15, 96.78 and 117.50 for various mini-robot welded mild steel plates of thickness 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm and 1.0 mm, while the maximum average hardness values... Show More
  • Investigation of Misalignment Affects During Creep Testing on the Miniature Pin-Loaded and the Sup-Size Uniaxial Creep Tests Specimens

    Balhassn Ali

    Issue: Volume 4, Issue 2, June 2020
    Pages: 37-42
    Received: 16 May 2020
    Accepted: 29 May 2020
    Published: 16 June 2020
    Abstract: Creep is one of the main engineering problems facing engineers dealing with high temperature components. These components have to be closely monitored, especially after serving 50% of their residual life. For many reason creep engineers has to use small material samples for creep assessments of these components. Many small creep test specimen types... Show More