Pengaruh Perlakuan Shot Peening Terhadap Korosi Retak Tegang Baja Karbon Rendah Pada Lingkungan Korosif

S. Sujita

Abstract


The aim of this study is to investigate the effect of shot peening on stress corrosion cracking of a low carbon steel in ocean water environment. The dimension of specimens were prepared in accordance with the ASTM G39. The hardness testing was carried out using microvickers with 0,25 kgf load in the longitudinal direction. The corrosion cracking test was immersed into artificial sea water for about 7 months. The test shows that the pitting corrosion is dominantly nucleated at the metal film interface. The biggest pitting corrosion was occurred under the static loading of 70 for the specimens unpeened. The presence of pitting corrosion promotes stress corrosion cracking. The cracking has a intergranular branched morphology which is typical for the chloride cracking of low carbon steel

Full Text:

PDF

References


ASTM G39, Standard Practice for Preparation and Use of Bent-Beam Stress-Corrosion Test Specimens, ASTM International, Annual Book of ASTM Standard, USA, 1999. 3. ASTM G44, Standard Practice for Exposure of Metals and Alloys by Alternate Immersion in Neutral 3.5 % Sodium Chloride Solution , ASTM International, Annual Book of ASTM Standard, USA, 1999. 4. ASTM D1141, Standard Practice For The Preparation of Substitute Ocean Water, ASTM International, Annual Book of ASTM Standard, USA. 1998. 5. Farrahi, G.H, Lebrun, J.L and Couratin, D., ā€¯Effect of Shot Peening on Residual Stress And Fatigue Life of Spring steel, FFEM, 18(2), 1995, pp. 211-220. 6. Kirk D., P.E. Render, Effect Of Peening On Stress Corrosion Cracking, International Conference of Shot Peening 7th, Warsaw, Poland., 1998, pp.167- 176. 7. Denny A. Jones, Principles and Prevention of Corrosion, 2nd series, Prentice Hall, New Jersey, USA, 1996, pp.238-239. 8. James. D. Frizt, Ronald. J.Gerlock, Chloride Stress Corrosion Cracking Resistance Of 6 % Mo Stainless Steel Alloy (UNS N08367). Desali

Volume 1. Nomor 2 Edisi Juli 2011 ISSN : 2088-088X

nation Journal, 13(5), 2001, pp.93-97. 9. Kritzler, J., Effect Of Shot Peening On Stress Corrosion Cracking On Austenitic Stainless Steel, International Conference of Shot Peening 7th , Marsaw, Poland, 1998, pp.199-208. 10. Prabhugaunkar, G.V, Rawat, M.S dan Prasad, C.R, Role of Shot Peening On Life Extension of 12% Cr Turbine Blading Martensitic Steel Subjected To SCC and Corrosion Fatigue, International Conference of Shot Peening 7th, Marsaw, Poland., 1998, pp.177-183.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2017 Dinamika Teknik Mesin

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.