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Shankar
ShankarIron
Asked: April 29, 20202020-04-29T19:52:27+05:30 2020-04-29T19:52:27+05:30In: Physical Metallurgy & Heat treatment

What is the difference between hardness and hardenability?

What is the difference between hardness and hardenability?
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    1. Rohit.km Platinum Gate aspirant.
      2020-04-29T20:50:41+05:30Added an answer on April 29, 2020 at 8:50 pm

      Very frequently you will come across these but don't get confused. Hardness is the resistance to local plastic deformation in the material that can be due to application of some force , indentation or abrasion. Think like if you apply some force to material how much will it be able to sustain this wRead more

      Very frequently you will come across these but don’t get confused.

      Hardness is the resistance to local plastic deformation in the material that can be due to application of some force , indentation or abrasion. Think like if you apply some force to material how much will it be able to sustain this without deforming in that localised area.

      Now hardenability  is the property of steel which determines the depth and distribution of hardness during quenching or you can say it is the depth on hardening when we quench a sample.

      Now for example. You have 2 steel sample 1) 100% Martensite upto center- this will have low surface hardness but high hardenability.

      2) 100% Martensite near surface only – this will have high surface hardness but low hardenability.

      Hope it’s clear you can ask further questions.

       

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      • Vishal Pambhar Gold Metallurgist, Standard Provider (IS, ASTM, BS, ISO etc), Laboratory Equipment Suppliers,
        2020-04-30T10:10:44+05:30Replied to answer on April 30, 2020 at 10:10 am

        Great Explanation.. 👏

        Great Explanation.. 👏

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    2. [email protected] Platinum
      2020-04-29T22:37:24+05:30Added an answer on April 29, 2020 at 10:37 pm

      Hardness is the resistance to plastic deformation . Hardenability is the ability to form nartensite. Fine grains are more grain boundaries as compare to coarse grains. So more gb means more dislocation pile up which results in the strengthening effect and which increases the hardness. But hardenabilRead more

      Hardness is the resistance to plastic deformation . Hardenability is the ability to form nartensite. Fine grains are more grain boundaries as compare to coarse grains. So more gb means more dislocation pile up which results in the strengthening effect and which increases the hardness. But hardenability is more in the coarse grain as compare to fine grain. Because fine grains have more gb and that acts as a nucleation sites for pearlite. So it suppresses the martensite formation which decreases the hardenability.

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    3. Mohamad Afzal Khan Gold
      2020-05-01T10:33:01+05:30Added an answer on May 1, 2020 at 10:33 am

      Hardness is resistance to indentation, hardenability is ability/capability of the material that can be hardened

      Hardness is resistance to indentation, hardenability is ability/capability of the material that can be hardened

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    4. Ashumanit
      2020-05-03T23:32:10+05:30Added an answer on May 3, 2020 at 11:32 pm

      Hardness- It is measure of resistance offered by any surface against scratching or indentation. More such resistance more will be the hardness. Hardenability- It is a way to indicate upto what depth any material can be harden by certain thermal treatment. More the depth more will be the capability tRead more

      Hardness- It is measure of resistance offered by any surface against scratching or indentation. More such resistance more will be the hardness.
      Hardenability- It is a way to indicate upto what depth any material can be harden by certain thermal treatment. More the depth more will be the capability to be harden i.e hardenability.

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    5. Gaurav Kumar Gold
      2020-05-10T20:11:05+05:30Added an answer on May 10, 2020 at 8:11 pm

      Hardness resistance to plastic deformation Hardenability is dept upto which material can be harden

      Hardness resistance to plastic deformation

      Hardenability is dept upto which material can be harden

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    6. Vijay Copper
      2020-04-30T18:00:25+05:30Added an answer on April 30, 2020 at 6:00 pm

      HARDNESS : resistance to indentation, scratch,  abrasion,  etc.. HARDENABILITY: ability to harden .. Simply

      HARDNESS : resistance to indentation, scratch,  abrasion,  etc..

      HARDENABILITY: ability to harden ..

      Simply

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