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<p>Subsistence farmers in Ghana face challenges with locally produced machetes, which corrode, break and bend easily during use. This study aims to enhance surface hardness and inhibit corrosion in machetes using Birsana plant extract as quenchant. Elemental composition, microstructure, hardness, bending and electrochemical analysis were conducted on quenched sampled machetes with the unquenched ones serving as control. Samples quenched at 800&#xa0;°C and tempered at 300&#xa0;°C, 500&#xa0;°C and 600&#xa0;°C showed significant improvements in the mechanical properties. Optimum surface hardness was achieved with the samples tempered at 500&#xa0;°C and quenched in 0.2 <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\({\text{gml}}^{-1}\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mrow> <mtext>gml</mtext> </mrow> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> </math></EquationSource> </InlineEquation> concentration of extract, attaining a better hardness value of 280 HV and flexural strength of 4065&#xa0;MPa. Despite the corrosion and wearing inhibition capability of the extract, further ‘enhancements and maintenance practices are recommended to improve the machetes’ overall durability and performance.</p> Graphical abstract <p></p>

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Appraisal on local manufacturing of agricultural farm machetes in Ghana: Using local plant extract for mechanical properties optimization

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • Keziah Enyonam Noamesi,
  • Sullaiman Alhassan,
  • Acheampong Antwi Afari,
  • Yiporo Danyuo,
  • Ernestine Sogah,
  • Divine Ishimwe

摘要

Subsistence farmers in Ghana face challenges with locally produced machetes, which corrode, break and bend easily during use. This study aims to enhance surface hardness and inhibit corrosion in machetes using Birsana plant extract as quenchant. Elemental composition, microstructure, hardness, bending and electrochemical analysis were conducted on quenched sampled machetes with the unquenched ones serving as control. Samples quenched at 800 °C and tempered at 300 °C, 500 °C and 600 °C showed significant improvements in the mechanical properties. Optimum surface hardness was achieved with the samples tempered at 500 °C and quenched in 0.2 \({\text{gml}}^{-1}\) gml - 1 concentration of extract, attaining a better hardness value of 280 HV and flexural strength of 4065 MPa. Despite the corrosion and wearing inhibition capability of the extract, further ‘enhancements and maintenance practices are recommended to improve the machetes’ overall durability and performance.

Graphical abstract