Abstract:

Cryogenic processing is a cheap thermal processing that applies to materials and develops the tribolological characteristics of materials and complements traditional thermal processing or alternative traditional thermal processing. It is known that the cryogenic process applied to materials transforms the remaining esthenite into martensite, provides a more homogeneous microbuilding, increases the resistance to stretching, hardness and electrical conductivity. This study has studied the impact of thick cryogenic process on the microbuilding, hardness and electrical conductivity of the AISI 410. The impact of the waiting time was identified by applying a thick cryogenic process in 4 different waiting times (24, 48, 72 and 96 hours).  Unprocessed samples (N0) have been evaluated by reference. According to the results obtained, the thick cryogenic process has been observed to be homogeneous by regulating the microbuilding of stainless steel AISI 410. The thick cryogenic process increased the hardness of the N4 sample by about 4% compared to the N0 sample. There is also a 300% increase in electricity. The maximum impact on hardness and electrical conductivity was achieved in 96 hours of waiting time. In general, the thick cryogenic process has been shown to have a positive effect on the hardness and electrical conductivity of stainless steel during the appropriate waiting period.

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