PM stainless steels uses in automotive exhausts

Hale, Tim

doi:10.1016/s0026-0657(98)85007-8

Cited by 7 publications

(1 citation statement)

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“…This strong growth is attributed to increased PM parts in automotive exhausts. 1 A progressive increase in austenitic PM SS components has also been observed in recent years in such industries as aerospace, agriculture, building, construction and the chemical industry, etc. 2 Filters, small components in water pumps and housekeeping machines are some applications where an optimal combination of mechanical properties and corrosion resistance are required.…”

Section: Introductionmentioning

confidence: 93%

Influence of sinter-cooling rate on intergranular corrosion of powder metallurgy superaustenitic stainless steel

Martín-Pedrosa

Garcı́a

Blanco

et al. 2014

Corrosion Engineering, Science and Technology

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Powder metallurgy superaustenitic stainless steel sintered in N 2 -H 2 atmosphere (95%-5%) was obtained. Three different processes were applied by controlling the sinter-cooling rate (furnace, gas and water). Intergranular corrosion resistance was evaluated. Furthermore, microstructure, density, porosity, macro-and microhardness were investigated. Microstructures were characterised by optical microscopy and scanning electron microscopy with energy dispersive analysis of X-rays. Intergranular corrosion behaviour was evaluated by immersion and by single and double loop electrochemical potentio-kinetic reactivation tests. The superaustenitic steel after fast cooling by water quenching showed the best intergranular corrosion behaviour, the highest microhardness values and the most homogeneous microstructure.

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Section: Introductionmentioning

confidence: 93%