Abstract
A nanostructured surface layer was produced on an AISI 304 stainless steel plate by means of a surface mechanical attrition treatment (SMAT). Low-temperature plasma nitriding of the SMAT stainless steel sample was investigated in comparison with the coarse-grained sample by using structural analysis (X-ray diffraction, scanning electron microscopy, and transmission electron microscopy) as well as mechanical property measurements. It shows a much thicker nitrided layer is formed on the SMAT sample relative to that in the coarse-grained counterpart nitrided under the same condition. The nitrided layer in the SMAT sample is composed of nanostructured austenite expansion and martensite expansion with high supersaturations of nitrogen. The surface hardness and the hardened surface layer thickness, as well as the abrasive and the adhesive wear resistances of the nitrided SMAT sample are much enhanced relative to the nitrided coarse-grained sample.
Financial support from the National Science Foundation of China (Grant No. 50021101, 10175012), the Ministry of Science and Technology of China (Grant G1999064505), and the Max-Planck Society of Germany is acknowledged.
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© 2003 Carl Hanser Verlag, München
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- Notifications/Mitteilungen
- Personal/Personelles
- News
- DGM Events
Articles in the same Issue
- Frontmatter
- Articles/Aufsätze
- From atomistics to macro-behavior: structural superplasticity in micro- and nano-crystalline materials
- Interface stress in nanocrystalline materials
- Microstructure, frequency and localisation of pseudo-elastic fatigue strain in NiTi
- Intercrystalline defects and some properties of electrodeposited nanocrystalline nickel and its alloys
- Positrons as chemically sensitive probes in interfaces of multicomponent complex materials: Nanocrystalline Fe90Zr7B3
- Annealing treatments to enhance thermal and mechanical stability of ultrafine-grained metals produced by severe plastic deformation
- Nanoceramics by chemical vapour synthesis
- Deformation mechanism and inverse Hall – Petch behavior in nanocrystalline materials
- Simulations of the inert gas condensation processes
- Unconventional deformation mechanism in nanocrystalline metals?
- Alloying reactions in nanostructured multilayers during intense deformation
- Impact of grain boundary character on grain boundary kinetics
- Nanostructured (CoxFe1– x)3–yO4 spinel – mechanochemical synthesis
- Nanostructure formation and thermal stability of nanophase materials prepared by mechanical means
- Low-temperature plasma nitriding of AISI 304 stainless steel with nano-structured surface layer
- New materials from non-intuitive composite effects
- On the line defects associated with grain boundary junctions
- Young’s modulus in nanostructured metals
- The kinetics of phase formation in an ultra-thin nanoscale layer
- Notifications/Mitteilungen
- Personal/Personelles
- News
- DGM Events