NDLI: Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment

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Low-temperature nitriding of 38CrMoAl steel with a nanostructured surface layer induced by surface mechanical attrition treatment

Content Provider	Semantic Scholar
Author	Tong, Wilson P. Han, Zhengsheng Wang, Lei Lu, Jian Lu, Keding
Copyright Year	2008
Abstract	A nanocrystalline surface layer was fabricated on a 38CrMoAl steel plate by means of a surface mechanical attrition treatment (SMAT). The average grain size in the top surface layer (10 pm thick) is about 10 nm, and the grain size stability can be maintained up to 450 degrees C. The effect of the surface nanocrystalline layer on the gas nitriding process at a lower temperature was investigated by using structural analysis and wear property measurements. The surface nanocrystallization evidently enhances nitricling kinetics and promotes the formation of an ultrafine polycrystalline compound layer. The results of the investigation showed that this new gas nitriding technique can effectively increase the hardness and wear resistance of the resulting surface layer in comparison with conventional nitriding, demonstrating a significant advancement for materials processing. (c) 2008 Elsevier B.V. All rights reserved.
Starting Page	4957
Ending Page	4963
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1016/j.surfcoat.2008.04.085
Volume Number	202
Alternate Webpage(s)	http://lu-group.imr.ac.cn/pdf/W.P.TOng(2008)4957.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.surfcoat.2008.04.085
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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