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Microstructure Steel 4140 |
Microstructure of nitride layer |
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Microhardness test |
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Fig 4. Distribution of microhardness (HV0,05) in the nitride layer in the studied section of the probe |
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Table 1 |
Vickers
Hardness |
HV101 |
HV102 |
HV10 3 |
HV10 middle |
554 |
572 |
554 |
560 |
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Table 2 |
Vickers
Hardness |
HV101 |
HV102 |
HV5 3 |
HV5 middle |
603 |
572 |
554 |
587 |
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Table 3 |
Vickers
Hardness |
HV101 |
HV102 |
HV1 3 |
HV1 middle |
653 |
660 |
660 |
657 |
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Table 4 |
Vickers
Hardness |
HV101 |
HV102 |
HV0 2 3 |
HV2 middle |
680 |
693 |
701 |
691 |
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