<p>High-entropy alloys (HEAs) are designed by combining chemical elements in equal or nearly equal amounts to create strong, ductile materials. Some attributes of HEAs can be modified by doping elements that are chosen based on the working environments. This study examines the impact of <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(Al\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi mathvariant="italic">Al</mi> </mrow> </math></EquationSource> </InlineEquation> addition on the mechanical properties of <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\({Al}_{x}{(CoCrFeNi)}_{1-x}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mrow> <mi mathvariant="italic">Al</mi> </mrow> <mi>x</mi> </msub> <msub> <mrow> <mo stretchy="false">(</mo> <mi>C</mi> <mi>o</mi> <mi>C</mi> <mi>r</mi> <mi>F</mi> <mi>e</mi> <mi>N</mi> <mi>i</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mn>1</mn> <mo>-</mo> <mi>x</mi> </mrow> </msub> </mrow> </math></EquationSource> </InlineEquation> high-entropy alloys (HEAs) through molecular dynamics (MD) simulations. We examined a variety of mechanical properties, including yield strength, lattice distortion, elastic constants, elastic moduli, anisotropy, and melting point. Increasing the <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(Al\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi mathvariant="italic">Al</mi> </mrow> </math></EquationSource> </InlineEquation> content in <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\({Al}_{x}{(CoCrFeNi)}_{1-x}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mrow> <mi mathvariant="italic">Al</mi> </mrow> <mi>x</mi> </msub> <msub> <mrow> <mo stretchy="false">(</mo> <mi>C</mi> <mi>o</mi> <mi>C</mi> <mi>r</mi> <mi>F</mi> <mi>e</mi> <mi>N</mi> <mi>i</mi> <mo stretchy="false">)</mo> </mrow> <mrow> <mn>1</mn> <mo>-</mo> <mi>x</mi> </mrow> </msub> </mrow> </math></EquationSource> </InlineEquation> HEAs there was noticeable influences on strength and ductility which directly alters the mechanical properties of this alloys. The calculations of melting points indicate that incorporating <InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(Al\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi mathvariant="italic">Al</mi> </mrow> </math></EquationSource> </InlineEquation> contents significantly influence thermal properties, leading to increased melting points. Our findings emphasize the importance of understanding these effects, as they can provide useful insights for the design and progress of HEAs with superior mechanical properties appropriate for a variety of technological applications.</p>