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<p>The Spray atomization procedure was used to make Al–5 wt% Zn alloy for two distinct spray heights: 300&#xa0;mm and 350&#xa0;mm. The spray atomization technique is a quick way to make a solid that is used to speed up the cooling of the alloy. The study concentrates on the density, microstructure, and mechanical parameters, including Micro Vickers hardness, 0.2% yield strength (YS), and ultimate tensile strength of the spray-atomized alloy. The density of the spray-formed alloy SA-300 is 2.83&#xa0;g/cc, whereas the density of SA-350 is said to be 2.76&#xa0;g/cc. We use the line intercept method to measure the grain size of the spray atomized deposits. The microstructure of the spray-formed alloy for SA-300 and SA-350 is measured at 117&#xa0;µm and 63&#xa0;µm, respectively. The microstructure of SA-300 has large grains, while the microstructure of SA-350 has small, evenly spaced grains. Image analysis is used to measure and quantify the porosity of an SA-300 and SA-350 alloy. As the height of the spray rises, the porosity of the alloy generated by the spray goes from 3.12 to 3.17%. As the spray height goes up from 300 to 350&#xa0;mm, the micro Vickers hardness goes from 256 to 320&#xa0;MPa. The 0.2% YS and ultimate tensile strength (UTS) of SA-300 are 77&#xa0;MPa and 118&#xa0;MPa, respectively. The 0.2% YS of SA-350 is 91&#xa0;MPa, and the UTS of the same alloy is 138&#xa0;MPa.</p>

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Analysis of Microstructure and Mechanical Properties of Al–5 wt% Zn Alloy Processed Through Spray Atomization for the Different Spray Heights

  • 期刊论文

  • 发表日期：

    2025年9月4日

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  • Pradip Gunaki,
  • S. Devaraj,
  • G. S. Shashikanth,
  • M. Girish Prasad,
  • V. Srinivasa Chari,
  • Harish Hanumanthappa,
  • S. S. Naveen

摘要

The Spray atomization procedure was used to make Al–5 wt% Zn alloy for two distinct spray heights: 300 mm and 350 mm. The spray atomization technique is a quick way to make a solid that is used to speed up the cooling of the alloy. The study concentrates on the density, microstructure, and mechanical parameters, including Micro Vickers hardness, 0.2% yield strength (YS), and ultimate tensile strength of the spray-atomized alloy. The density of the spray-formed alloy SA-300 is 2.83 g/cc, whereas the density of SA-350 is said to be 2.76 g/cc. We use the line intercept method to measure the grain size of the spray atomized deposits. The microstructure of the spray-formed alloy for SA-300 and SA-350 is measured at 117 µm and 63 µm, respectively. The microstructure of SA-300 has large grains, while the microstructure of SA-350 has small, evenly spaced grains. Image analysis is used to measure and quantify the porosity of an SA-300 and SA-350 alloy. As the height of the spray rises, the porosity of the alloy generated by the spray goes from 3.12 to 3.17%. As the spray height goes up from 300 to 350 mm, the micro Vickers hardness goes from 256 to 320 MPa. The 0.2% YS and ultimate tensile strength (UTS) of SA-300 are 77 MPa and 118 MPa, respectively. The 0.2% YS of SA-350 is 91 MPa, and the UTS of the same alloy is 138 MPa.