Conceptual knowledge on hardness test performed on different types of material. Feel free to read and share with others. You may also find your desired presentation topics on my other slides. Thank you.

1. Course code: TE-334
Course name: Elements of Machine Dynamics and Design
ID: 181-23-5270
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Presentation on
Concept on hardness test conducted on material

2. Introduction:
• Ability of a material to resist
deformation.
• Specified to surface strength
of an object.
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3. Comparison with
strength:
• Surface penetration resistance.
• Solid surface property.
• Expressed by hardness. number.
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4. Hardness Test:
• A standard test where the surface
resistance to indentation is measured.
• Material’s tensile strength, elasticity,
and plasticity.
• Hardness tests: shape or type of indent,
the size, and the amount of load
applied.
umber.
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5. • Brinell Hardness Test
• Rockwell Hardness Test
• Knoop Hardness Test
• Vickers Hardness Test
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Types of Hardness Test

6. • Based on indentation depth
• Applied load 100-150kg
• Brale angle: 120 degree
• Brale radius: 0.2mm
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Rockwell Hardness Test

7. Process
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8. Brinell Hardness Test
• Based on indentation diameter
• Indentation load: 0.5-3ton
• Indenting time: 10-30sec
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9. Process
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10. • Indentation load: up to 100kgf
• Application time: 10-15sec
• Indenter material: diamond
• Indenter angle: 136degree
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Vickers Hardness Test

11. Knoop Hardness Test
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• Micro harness test method.
• Indentation load: 1kgf
• Similar to Vickers hardness test.
• Object must have microscopic finish.

12. THANK YOU
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