Low carbonsteel microstructure

C.M. Waard Particlede D.E. Milliams (1975) Corrosion 31 IssueID5 131

Technical SpecsStyle: TPGChipbreaker: UENWorkpiece Material: Aluminum, Stainless Steel, Hardened SteelCorner Radius: .031 inchesCutting Angle: 60 degreeCutting Direction: NeutralCut Type: GeneralDiameter: 3/8 inchesShape: 60-Degree TriangleThickness: 1/8 inchesRake Type: Negative Rake AngleMaterial: CarbideGrade: DNP25GTFinish / Coating: PVD Single Layer Coating

Microstructure of steelPDF

B. Mishra S. Al-Hassan D.L. Olson M.M. Salama (1997) Corrosion 53 IssueID11 852

This paper presents a fundamental study of the influence of carbon steel microstructure on the corrosion rate. Subsequently, the corrosion performance of various grades of carbon steels were evaluated in stirred autoclaves under elevated carbon dioxide and temperature conditions. Corrosion and penetration rates were determined via mass loss and optical microscopy, respectively. It was found that the corrosion rate of carbon steel line pipe is influenced by microstructure. More specifically, a relationship between localized corrosion susceptibility and the presence of pearlite bands in the steel microstructure was found. However, no correlation was evident between minor elemental concentrations (i.e., Ni, Cr, Mo) and corrosion resistance. It has been proposed that the corrosion stability of the various microstructures may arise from variations in the distribution of carbon bearing phases within the steel. In the banded ferrite/pearlite structure, the carbon-bearing phase (pearlite) is distributed in layers whereas in the other structures the carbon-bearing phases are much more evenly distributed. This study reports on the corrosion resistance of carbon steels in relation to their chemical and physical properties.

Grade DescriptionThe DNP25GT grade, it is a hard and tough micro-grained substrate, with shock resistant cutting edge for uneven cutting surface. PVD TiN coated, for General Turning Application, of Aluminum, and non Ferrous Metals, Plastic and Hardened Steel, at High SFM (Vc) for Light interrupted Cut. Wet Working Condition

Steel microstructureanalysis

Y.J. Tan, ‘Electrochemical studies on carbon dioxide corrosion and its inhibition’, Ph.D. Thesis, Curtin University, Perth, Australia (1996).

A. Dugstad H. Hemmer M. Seiersten (2001) Corrosion 57 IssueID4 369

G.I.W. Ogundele W.E. White (1986) Corrosion 42 IssueID2 71

Clover, D., Kinsella, B., Pejcic, B. et al. The influence of microstructure on the corrosion rate of various carbon steels. J Appl Electrochem 35, 139–149 (2005). https://doi.org/10.1007/s10800-004-6207-7

Martensitemicrostructure

Microstructure of steeldiagram

L.L. Shreir R.A. Jarman G.T. Burstein (1994) ‘Corrosion’ Oxford Butterworth-Heinemann

J.L. Mora-Mendoza S. Turgoose (2002) Corros. Sci. 44 1226

V.A. Alves C.M.A. Brett A. Cavaleiro (2001) J. Appl. Electrochem. 31 65

Pearlitemicrostructure

D.A. Lopez S.N. Simison S.R. de Sanchez (2003) Electrochimica Acta 48 845

S. Al-Hassan B. Mishra D.L. Olson M.M. Salama (1998) Corrosion 54 IssueID6 480

H. Asahi T. Kushida M. Kimura H. Fukai S. Okano (1999) Corrosion 55 IssueID7 644

D.A. Lopez W.H. Schreiner S.R. de Sanchez S.N. Simison (2003) Appl. Surf. Sci. 207 69

Ferritemicrostructure

R.A. Higgins (1993) ‘Engineering Metallurgy: Applied Physical Metallurgy’ EditionNumber6 Arnold London

C.L. Waard Particlede U. Lotz D.E. Milliams (1991) Corrosion 47 IssueID12 976

FeaturesFirst Choice: For General Application of Aluminum, Stainless Steel, Hardened Steel, with Small Depth of Cut and Low Feed per Revolution at Low SFM (Vc), Light interrupted Cut, Wet Working Condition. UEN, Ground surface, no Chip Breaker, negative Rake Angle, honed Cutting Edge, For General Turning Application, of Ferrous and non Ferrous Materials, at Small Depth of Cut (ap) and Feed Rate per Revolution (fn).

A.M.B.M. Kermani (2003) Corrosion 59 IssueID8 659

Microstructure ofmildsteel

E.P. DeGarmo J.T. Black R. Kosher (1988) ‘Materials and Processes in Manufacturing’ EditionNumber7 Macmillan New York 7

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InstitutionalAuthorNameNACE Task Group, T-1-3 (1984) ‘Introduction, in CO2 Corrosion in Oil and Gas Production-selected Papers, Abstracts and References’ Vol. 3 NACE Houston, Texas

G.R.B. Schmitt (1977) Part 1: Kinetics of the liberation of hydrogen, Werkstoffe und Korrosion 28 816