Coupled Multi-Electrode Array with a Sintered Ag/AgCl Counter/Reference Electrode to Investigate AA7050-T7451 and Type 316 Stainless Steel Galvanic Couple under Atmospheric Conditions

2018 ◽  
Vol 165 (9) ◽  
pp. C562-C572 ◽  
Author(s):  
Veronica N. Rafla ◽  
Piyush Khullar ◽  
Robert G. Kelly ◽  
John R. Scully
Keyword(s):  
Stainless Steel ◽  
Reference Electrode ◽  
Electrode Array ◽  
Atmospheric Conditions ◽  
316 Stainless Steel ◽  
Galvanic Couple ◽  
Sintered Ag ◽  
Multi Electrode Array

Concentrated Chloride Effects on Chromate Inhibition of Al Alloy-316 Stainless Steel Galvanic Couple-Induced Corrosion

2021 ◽  
Vol MA2021-02 (9) ◽  
pp. 564-564
Author(s):  
Utibe-Eno Charles-Granville ◽  
John R Scully ◽  
Robert G Kelly
Keyword(s):  
Stainless Steel ◽  
Al Alloy ◽  
316 Stainless Steel ◽  
Galvanic Couple

Selective Corrosion of brazed joint between BNi-2 filler metal and stainless steel 316

1996 ◽  
Vol 54 ◽  
pp. 218-219
Author(s):  
H. S. Kim ◽  
R. U. Lee
Keyword(s):  
Stainless Steel ◽  
Filler Metal ◽  
Surface Preparation ◽  
Optical Microscope ◽  
Heating Element ◽  
Incomplete Fusion ◽  
Atmospheric Conditions ◽  
Leak Test ◽  
High Temperature Side ◽  
Inconel 600

A heating element/electrical conduit assembly used in the Orbiter Maneuvering System failed a leak test during a routine refurbishment inspection. The conduit, approximately 100 mm in length and 12 mm in diameter, was fabricated from two tubes and braze-joined with a sleeve. The tube on the high temperature side (heating element side) and the sleeve were made of Inconel 600 and the other tube was stainless steel (SS) 316. For the filler metal, a Ni-Cr-B brazing alloy per AWS BNi-2, was used. A Helium leak test spotted the leak located at the joint between the sleeve and SS 316 tubing. This joint was dissected, mounted in a plastic mold, polished, and examined with an optical microscope. Debonding of the brazed surfaces was noticed, more pronounced toward the sleeve end which was exposed to uncontrolled atmospheric conditions intermittently. Initially, lack of wetting was suspected, presumably caused by inadequate surface preparation or incomplete fusion of the filler metal. However, this postulation was later discarded based upon the following observations: (1) The angle of wetting between the fillet and tube was small, an indication of adequate wetting, (2) the fillet did not exhibit a globular microstructure which would be an indication of insufficient melting of the filler metal, and (3) debonding was intermittent toward the midsection of the sleeve.

MAXIVAL MVAPM

Alloy Digest ◽  
2006 ◽  
Vol 55 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Tensile Properties ◽  
Oxide Inclusions ◽  
316 Stainless Steel ◽  
Aisi Type

Abstract Maxival MVAPM is an enhanced-machining version of AISI Type 316 stainless steel. The alloy has a specified inclusion picture to enhance machining by modifying both sulfide and oxide inclusions. This datasheet provides information on composition, hardness, and tensile properties. It also includes information on forming and machining. Filing Code: SS-966. Producer or source: Valbruna Stainless Inc.

MAXIVAL MVAPMD2

Alloy Digest ◽  
2011 ◽  
Vol 60 (3) ◽  
Keyword(s):  
Stainless Steel ◽  
Tensile Properties ◽  
Oxide Inclusions ◽  
316 Stainless Steel ◽  
Aisi Type

Abstract Maxival MVAPMD2 is an enhanced machining version of AISI Type 316 stainless steel. The alloy has a specified inclusion picture to enhance machining by modifying both sulfide and oxide inclusions. This datasheet provides information on composition, hardness, and tensile properties. It also includes information on forming and machining. Filing Code: SS-1086. Producer or source: Valbruna Stainless Inc..

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