The effect of nitrogen in sintered atmosphere of the ferritic stainless steels AISI 430L P/M
DOI:
https://doi.org/10.3989/revmetalm.2005.v41.i2.190Keywords:
Sintered stainless steels, ferritic stainless steels, pulvimetallurgy, microstructureAbstract
In this paper, we have studied the nitrogen effects different sintering atmospheres (nitrogen-hydrogen, and dissociate ammonia) on ferritic stainless steels (430L), fabricated by powder metallurgy process. We have carried out a study of the physical (density, porosity and dimensional variation) and mechanical properties (hardness, tensile strength, and lengthening) of the ferritic stainless steels sintered in the afore-mentioned atmospheres, as well as of their behaviour in pitting corrosion. We have studied, also the microstructure of the steels, which depends on the atmosphere used for sintering
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