Effect of Delta Ferrite on Corrosion Resistance of Type 316L Stainless Steel in Acidic Chloride Solution by Micro-Droplet Cell

More than 2% δ-ferrite phase is presented in type 316L stainless steels due to improvement of hot workability or welding process. In order to clarify the mechanism on how the δ-ferrite affects the corrosion resistance, electrochemical tests in a micro-droplet cell were conducted and microstructures were analyzed by TEM-EDS and SEM-EDS. Especially, the micro-droplet cell was modified at our laboratory to observe the polarization behavior of δ-ferrite phase in an acidic chloride solution. The anodic polarization behavior in both active zone and passive zone was affected by δ-ferrite. The degradation of corrosion resistance in the low potential zone with δ-ferrite phase is due to the preferential dissolution of a matrix, γ phase. It is explained with the fact that the formation of δ-ferrite lowers the concentrations of chromium and molybdenum in γ phase. It is also confirmed by potentiostatic test, EDS analyses and phase-equilibrium prediction. In addition, the micro-droplet cell and EDS analysis reveled that the pitting potential in the neutral pH solution was affected by Ca containing inclusion rather than δ-ferrite phase.

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BIODUR 316LS

Alloy Digest ◽

10.31399/asm.ad.ss0596 ◽

1995 ◽

Vol 44 (6) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

316L Stainless Steel ◽

Heat Treating ◽

Vacuum Arc ◽

Improve Corrosion Resistance ◽

Type 316L ◽

Type 316L Stainless Steel

Abstract BioDur 316LS stainless steel is a modified version of Type 316L stainless steel to improve corrosion resistance for surgical implant applications. The alloy is vacuum arc remelted. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-596. Producer or source: Carpenter.

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ENDURAMET 316LN

Alloy Digest ◽

10.31399/asm.ad.ss1219 ◽

2015 ◽

Vol 64 (7) ◽

Keyword(s):

Fracture Toughness ◽

Stainless Steel ◽

Corrosion Resistance ◽

Physical Properties ◽

316L Stainless Steel ◽

Heat Treating ◽

Type 316L ◽

Technology Corporation ◽

Carpenter Technology Corporation ◽

Type 316L Stainless Steel

Abstract EnduraMet 316LN stainless is a nitrogen strengthened version of Type 316L stainless steel. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1219. Producer or source: Carpenter Technology Corporation.

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Effect of thermal treatment on the corrosion resistance of Type 316L stainless steel exposed in supercritical water

Journal of Nuclear Materials ◽

10.1016/j.jnucmat.2015.04.030 ◽

2015 ◽

Vol 464 ◽

pp. 356-364 ◽

Cited By ~ 12

Author(s):

Y. Jiao ◽

W. Zheng ◽

D.A. Guzonas ◽

W.G. Cook ◽

J.R. Kish

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Thermal Treatment ◽

Supercritical Water ◽

316L Stainless Steel ◽

Type 316L ◽

Type 316L Stainless Steel

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Improvements in Localized Corrosion Resistance of Nitrogen Ion Implanted Type 316L Stainless Steel Orthopaedic Implant Devices

Materials Science Forum ◽

10.4028/www.scientific.net/msf.318-320.561 ◽

1999 ◽

Vol 318-320 ◽

pp. 561-568 ◽

Cited By ~ 10

Author(s):

K.M. Veerabadran ◽

U. Kamachi Mudali ◽

K.G.M. Nair ◽

M. Subbaiyan

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

316L Stainless Steel ◽

Localized Corrosion ◽

Orthopaedic Implant ◽

Type 316L ◽

Nitrogen Ion ◽

Type 316L Stainless Steel ◽

Ion Implanted

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PROJECT 70/PROJECT 7000 STAINLESS TYPE 316L

Alloy Digest ◽

10.31399/asm.ad.ss0515 ◽

1997 ◽

Vol 46 (7) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Physical Properties ◽

Stainless Steels ◽

316L Stainless Steel ◽

Heat Treating ◽

Aisi Type ◽

Type 316L ◽

Type 316L Stainless Steel

Abstract Project 70 and Project 7000 Type 316L stainless steels are versions of conventional AISI Type 316L stainless steel having improved machinability, and having higher tensile and creep strengths than conventional 18-8 stainless steels. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-515. Producer or source: Carpenter. Originally published November 1990, revised July 1997.

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