Metalurgi
Vol 27, No 1 (2012): Metalurgi Vol. 27 No. 1 April 2012

APLIKASI SEVERE PLASTIC DEFORMATION (SPD) DAN HEAVY COLD ROLLING PADA BAJA TAHAN KARAT AUSTENITIK 316L[The Application of Severe Plastic Deformation (SPD) and Heavy Cold Rolling of Austenitic Stainless Steel 316L]

Mabruri, Efendi (Unknown)



Article Info

Publish Date
26 Jun 2016

Abstract

 APLIKASI SEVERE PLASTIC DEFORMATION (SPD) DAN HEAVY COLD ROLLING PADA BAJA TAHAN KARAT AUSTENITIK 316L. Untuk meningkatkan kekuatan baja tahan karat austenitik, penghalusan butir sampai ukuran submikron (ultra fine grain) merupakan metoda yang efektif. Tulisan ini melaporkan aplikasi severe plastic deformation (SPD) menggunakan equal channel angular pressing (ECAP) dan aplikasi heavy cold rolling terhadap baja tahan karat austenitik SS 316L. Hasil percobaaan menunjukkanbahwa sifat mekanik baja tahan karat austenitik 316L dapat ditingkatkan secara signifikan masing-masing dengan kedua teknik tersebut. ECAP pass 1 (single pass) dengan regangan 0,65 dapat meningkatkan kekuatantarik baja tahan karat austenitik 316L menjadi 1,6 kali lipat, sedangkan heavy cold rolling 80 % dengan regangan 1,65 dapat meningkatkan kekuatan tarik menjadi 2,1 kali lipat. Pemanasan anil pada suhu 750 °C menurunkan kekuatan tarik menjadi 1055,14 MPa tetapi nilai tersebut masih jauh lebih tinggi dari kekuatan tarik pada kondisi awal (solution treatment) sebesar 655,53 Mpa.  AbstractTHE APPLICATION OF SEVERE PLASTIC DEFORMATION (SPD) AND HEAVY COLD ROLLING OFAUSTENITIC STAINLESS STEEL 316L. The grain refinement down to ultrafine sizes is the efective methodfor strengthening of austenitic stainless steel. This paper reports the application of severe plastic deformation (SPD) using equal channel angular pressing (ECAP) and the application of heavy cold rolling on the austeniticstainless steel (SS) 316L. The experimental results showed that the mechanical properties of SS 316L can be increased significantly by these two techniques. The single pass-ECAP with 0.65 strain increased tensile strength of SS 316L by 1.6 times, whereas heavy cold rolling with 80% reduction and 1.65 strain increased tensile strength by 2.1 times. The annealing treatment at 750 °C decreased tensile strength of 80 % cold rolled SS 316L down to 1055.14 Mpa, however this value is still much larger compared to that of solution treated onesof 655.53 Mpa. 

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Journal Info

Abbrev

metalurgi

Publisher

Subject

Energy

Description

METALURGI published by Research Center for Metallurgy and Materials LIPI. The objective of this journal is the online media for disseminating of RCMM results in Research and Development and also as a media for a scientist and researcher in the field of Metallurgy and ...