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<p>The present investigation focuses on the processing of AlSi10Mg automotive components through additive manufacturing (AM) under optimized printing parameters, followed by the critical evaluation of its performance. The additively manufactured and heat-treated AlSi10Mg suspension bush components were subjected to low-cycle fatigue tests along with conventionally manufactured components at the same test conditions. The additively manufactured and heat-treated components could withstand 5 <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\times\)</EquationSource> <EquationSource Format="MATHML"><math> <mo>×</mo> </math></EquationSource> </InlineEquation> 10<sup>5</sup> cycles without undergoing any failure. The detailed microstructural characterization of the AM-processed and heat-treated components was carried out with the help of scanning electron microscopy. Phase analysis and mechanical properties were evaluated to ascertain the effect of low-cycle fatigue on structure and properties. The microstructure of the components was studied in detail before and after the fatigue test. No significant damage was noticed in the microstructure and mechanical properties of the built and heat-treated samples, even after the fatigue test.</p>

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Unveiling the Effect of Low-Cycle Fatigue on Additively Manufactured AlSi10Mg Component: Insights into Microstructure and Mechanical Properties

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • Pradyut Sengupta,
  • Shuvam Mandal,
  • B. Sai Charan,
  • Deepak Adhikari,
  • Harish C. Kaushik,
  • Ajit Panigrahi,
  • Manoj Kumar,
  • Deepak K. Pattanayak,
  • Satya P. Mohapatra,
  • Mayadhar Debata

摘要

The present investigation focuses on the processing of AlSi10Mg automotive components through additive manufacturing (AM) under optimized printing parameters, followed by the critical evaluation of its performance. The additively manufactured and heat-treated AlSi10Mg suspension bush components were subjected to low-cycle fatigue tests along with conventionally manufactured components at the same test conditions. The additively manufactured and heat-treated components could withstand 5 \(\times\) × 105 cycles without undergoing any failure. The detailed microstructural characterization of the AM-processed and heat-treated components was carried out with the help of scanning electron microscopy. Phase analysis and mechanical properties were evaluated to ascertain the effect of low-cycle fatigue on structure and properties. The microstructure of the components was studied in detail before and after the fatigue test. No significant damage was noticed in the microstructure and mechanical properties of the built and heat-treated samples, even after the fatigue test.