Selective Corrosion Resistance of Chromium Implanted Cu-37w%Zn Alloy

1988 ◽  
Vol 125 ◽  
Author(s):  
J-P. Hirvonen ◽  
R.O. Toivanen ◽  
V.K. Lindroos
Keyword(s):  
Corrosion Resistance ◽  
Alloying Elements ◽  
Vacancy Formation ◽  
Repulsive Interaction ◽  
Selective Corrosion ◽  
Zn Alloy ◽  
Alpha Brass

ABSTRACTSelective corrosion resistance of the chromium implanted brass as well as vacancy formation were investigated. Dealloying was observed to create excess vacancies. Chromium and boron and many other potentially beneficial alloying elements like C, N, Si, P, V, Co, Ni, Cu, Ge, As, Y, Nb, Pd, Ag, Sn, Sb, have a repulsive interaction with vacancies and they could increase the dezincification resistance in alpha brass but not in beta brass. Boron implanted brass was found to be more resistant to selective corrosion than the chromium implanted brass.

ALCOTEC WELD FILLER WIRE 5356

Alloy Digest ◽  
2016 ◽  
Vol 65 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloying Elements ◽  
Filler Wire ◽  
Welding Wire

Abstract Alcotec weld filler wire 5356 is a non-heat-treatable aluminum welding wire whose principal alloying elements are magnesium, manganese, and chromium. It is similar to the European wire AlMg5Cr(A). This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: Al-445. Producer or source: AlcoTec Wire Corporation.

ALLEGHENY LUDLUM AL-6XN PLUS

Alloy Digest ◽  
2005 ◽  
Vol 54 (6) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Alloying Elements ◽  
Temperature Performance

Abstract The AL-6XN PLUS alloy is an enhanced version of the AL-6XN alloy (see Alloy Digest SS-494, May 1988). Both satisfy the composition requirements of UNS N08367, but AL-6XN PLUS contains a greater concentration of the alloying elements (Cr, Mo, and N) which promote corrosion resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as heat treating and joining. Filing Code: SS-923. Producer or source: Allegheny Ludlum Corporation. Originally published April 2005, revised June 2005.

DMV 928

Alloy Digest ◽  
2009 ◽  
Vol 58 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Base Alloy ◽  
Heat Treating ◽  
Alloying Elements ◽  
Nickel Base Alloy ◽  
Excellent Corrosion Resistance ◽  
Nickel Base

Abstract DMV 928 is a nickel-base alloy with high alloying elements of chromium, molybdenum, and copper for excellent corrosion resistance in reducing and oxidizing media. This datasheet provides information on composition, physical properties, elasticity, 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-1048. Producer or source: Mannesmann DMV Stainless USA Inc.

scholarly journals Thickness and corrosion resistance optimization of Micro-ARC oxidation coating on Mg-Al-Li-Zn alloy using Taguchi approach

2020 ◽  
pp. 62-66
Author(s):  
Do Le Hung Toan, Shuo-Jen Lee Do
Keyword(s):  
Corrosion Resistance ◽  
Processing Time ◽  
Electrical Potential ◽  
Surface Protection ◽  
Alkaline Electrolytes ◽  
Micro Arc Oxidation ◽  
Corrosive Environments ◽  
Zn Alloy ◽  
Main Factor

Micro arc oxidation method has been developed in the field of surface protection of magnesium alloys and considered as a simple, highly effective, commercial and environmentally friendly method in industry. MAO coatings are fabricated on novel Mg-Al-Li-Zn alloy to improve the anti-corrosion performance of surface by using friendly alkaline electrolytes under a high electrical potential. The Taguchi method and optimal analysis are used to identify the effects of the three factors including current density, processing time and electrical frequency on coating’s characteristics. The results have shown that the main factor that affects coating thickness and corrosion resistance of coating is the processing time. The results obtained by optimal conditions are consistent with prediction values of Taguchi analysis. The thickness of the coating can help to improve the long-term corrosion protection of a MAO coating in corrosive environments.

Effect of Platinum Elements Additions on the Active Dissolution of Plastic Chromium in Sulfuric Acid

CORROSION ◽  
1984 ◽  
Vol 40 (3) ◽  
pp. 134-138 ◽  
Author(s):  
N. D. Tomashov ◽  
G. P. Chernova ◽  
E. N. Ustinsky
Keyword(s):  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Anodic Dissolution ◽  
Cathodic Polarization ◽  
Active State ◽  
Alloying Elements ◽  
Active Dissolution ◽  
Alloying Additions ◽  
Blocking Mechanism

Abstract Alloys based on plastic chromium with 0.1 to 0.4 mass % Ru, Pd, Ir, or Pt were investigated in 40% sulfuric acid in active state under cathodic polarization (−0.175 V). All of the studied additions of alloying elements are responsible for the reduced anodic dissolution of chromium. The corrosion resistance of alloys depends on the concentration and nature of the alloying additions. Two mechanisms decelerating the active dissolution of the cathode-modified chromium have been established, i.e., blocking mechanism (cathodic component atoms block the active points in the lattice) and screening mechanism (cathodic component, while getting crystallized on the surface, partly screens the latter).

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