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Surface characterization of austenitic stainless steel 304L after different grinding operations

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Abstract
Background: The austenitic stainless steel 304L is widely used as a structural material for which the finished surface
has significant effect on the service performance. A study of the grinding process with regard to the quality of the
ground surfaces is therefore interesting from the point of view of both industrial application and scientific research.
Method: This work investigates the influence of grinding parameters including abrasive grit size, machine
power, and grinding lubrication on the surface integrity of the austenitic stainless steel 304L. The induced
normal grinding force, grinding surface temperature, metal removal rate, and surface property changes have
been investigated and compared.
Results and Conclusion: Using grinding, lubrication significantly enhanced the metal removal rate. Surface
defects (deep grooves, smearing, adhesive chips, and indentations), a highly deformed thin surface layer up
to a few microns in thickness, and high surface tensile residual stresses parallel to the grinding direction have been
observed as the main damage induced by the grinding operations. Surface finish and deformation were found to be
improved by using smaller abrasive grits or by using lubrication during grinding. Increasing the machine power
increased surface deformation while reducing surface defects. The results obtained can provide a reference for choosing
appropriate grinding parameters when machining 304L; and can also help to understand the failure mechanism of
ground austenitic stainless steel components during service.
Keywords: Austenitic stainless steel 304L, Grinding, Surface characterization, Microstructure, Residual stress

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Ketersediaan

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Informasi Detail

Judul Seri

International Journal of Mechanical and Materials Engineering , Volume 12, Issue 1, December 2017

No. Panggil

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Penerbit

: Springer Singapore., 2017

Deskripsi Fisik

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Bahasa

English

ISBN/ISSN

2198-2791

Klasifikasi

NONE

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

International Journal of Mechanical and Materials

Subjek

TEKNIK MESIN
MEKANIKA TEKNIK

Info Detail Spesifik

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Pernyataan Tanggungjawab

ety

Versi lain/terkait

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