scholarly journals Influence of Cu Content on Microstructure and Corrosion Behavior of Flux-Cored Arc-Welded Metal with 10CrNi3MoV Steel

2019 ◽  
pp. 5984-5999
Author(s):  
Jianglong Yi ◽  
Keyword(s):  
Corrosion Behavior ◽  
Cu Content

Effect of the Cu Content on the Microstructure and Corrosion Behavior of PEO Coatings on Al–xCu Alloys

2018 ◽  
Vol 165 (9) ◽  
pp. C469-C483 ◽  
Author(s):  
Liye Zhu ◽  
Wei Zhang ◽  
Tao Zhang ◽  
Ji Qiu ◽  
Jingyi Cao ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Cu Content ◽  
Peo Coatings

scholarly journals STUDIES ON TENSILE PROPERTIES AT VARIOUS STRAIN RATES AND CORROSION BEHAVIOR OF PEAKAGED AL-6SI-0.5MG (-0.5CU) ALLOYS

2016 ◽  
Vol 17 (2) ◽  
pp. 105-115
Author(s):  
Abul Hossain ◽  
Fahmida Gulshan ◽  
A. S. W. Kurny
Keyword(s):  
Tensile Properties ◽  
Corrosion Behavior ◽  
Open Circuit Potential ◽  
Corrosion Potential ◽  
Electrochemical Corrosion ◽  
Open Circuit ◽  
Strain Rates ◽  
Cu Content ◽  
Electrochemical Corrosion Behavior ◽  
Experimental Strain

This paper focuses the effect of Cu additions on tensile properties of Al-6Si-0.5Mg alloy at various strain rates and electrochemical corrosion behavior. The additions of Cu resulted in an increase in tensile strength and showed higher strength all over the experimental strain rates. Evaluations of tensile properties at the three different strain rates (10-4, 10-3 & 10-2s-1) showed that they affected the tensile properties significantly. The strength was better at higher strain rate but ductility was poor. Eelectrochemical impedance spectroscopy (EIS) and potentiodynamic polarisation have been used to evaluate the corrosion resistance of Cu free and 0.5wt% Cu content Al-6Si-0.5Mg alloy in 0.1M NaCl solution. The 0.5wt% Cu addition to the Al-6Si-0.5Mg alloy showed that Cu decreased susceptibility to corrosion compared to the Cu free Al-6Si-0.5Mg alloy. The magnitude of open circuit potential (OCP), corrosion potential (Ecorr) and pitting corrosion potential (Epit) of Al-6Si-0.5Mg alloy were shifted to the more noble direction due to 0.5wt% Cu addition and thermal modification.

Effects of chemical composition on the corrosion behavior of A7N01S-T5 Al alloys

2015 ◽  
Vol 29 (10n11) ◽  
pp. 1540025 ◽  
Author(s):  
Xiaomin Wang ◽  
Xiaoyao Liao ◽  
Chuanping Ma ◽  
Shufang Zhang ◽  
Yan Liu ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Corrosion Behavior ◽  
Corrosion Current ◽  
Al Alloys ◽  
Chemical Compositions ◽  
Al Alloy ◽  
Electrochemical Test ◽  
Electrochemical Behaviors ◽  
Cu Content ◽  
Corrosion Pits

Corrosion behavior of 7N01 Al alloy is sensitive to chemical composition. In this paper, stress corrosion cracking (SCC) and electrochemical behaviors of A7N01S-T5 Al alloys with three different chemical compositions were investigated. The corrosion weight loss and corrosion pits depth statistics showed that Alloy #3 (4.53 wt .% Zn , 1.27% Mg , < 0.001% Cu , 0.24% Cr , 0.15% Zr ) possesses the best anti-SCC property, while Alloy #1 (4.54% Zn , 1.09% Mg , 0.102% Cu , 0.25% Cr , 0.15% Zr ) was the weakest one. The different SCC susceptibility was mainly related to the Cu content as Alloy #3 contains higher Cu than Alloys #1 and #2. Electrochemical test result showed that Alloy #3 has higher corrosion potential and lower corrosion current density than Alloys #1 and #2. It is believed that a trace Cu can significantly improve the SC resistance of Al alloy, mainly because that Cu element can reduce the potential difference between grain inside and grain boundaries.

scholarly journals Investigation of the Microstructure, Hardness and Corrosion Resistance of a New 58Ag24Pd11Cu2Au2Zn1.5In1.5Sn Dental Alloy

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4199 ◽  
Author(s):  
Dan Gheorghe ◽  
Ion Pencea ◽  
Iulian Vasile Antoniac ◽  
Ramona-Nicoleta Turcu
Keyword(s):  
Solid Solution ◽  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Artificial Saliva ◽  
Complex Structure ◽  
Electrochemical Corrosion ◽  
Dental Alloy ◽  
Dental Alloys ◽  
Cu Content ◽  
Electrochemical Corrosion Behavior

Higher-noble dental alloys (Au, Ag, and Pd) are the most desirable for dentistry applications, but they are expensive. Low-noble (Ag, Pd, Cu) dental alloys are alternatives to higher-noble ones due to their lower price. In this regard, the paper supports the price lowering of dental alloy by increasing the Cu content, i.e., a new 58Ag24Pd11Cu2Au2Zn1.5In1.5Sn dental alloy. The increasing addition of the Cu leads to a complex structure consisting of a solid solution that engulfs compounds of micrometric and nanometric sizes. The 58Ag24Pd11Cu2Au2Zn1.5In1.5Sn has demonstrated a much better electrochemical corrosion behavior in artificial saliva compared to the Paliag and Unique White dental alloys. The improved corrosion behavior of the new alloy is supported by the diminishing of the Cu selective diffusion into the electrolyte due to its retaining into compounds and into Ag-Pd solid solution. Also, the synergic effects of Cu, Zn, In, Sn may improve the corrosion resistance, but they have strengthened the 58Ag24Pd11Cu2Au2Zn1.5In1.5Sn matrix. The main finding addressed in the paper consists in a new 58Ag24Pd11Cu2Au2Zn1.5In1.5Sn dental alloy with improved corrosion resistance in artificial saliva.

scholarly journals Effect of Cu content on the Electrochemical Corrosion Behavior of Peak-aged Al-6Si-0.5Mg Alloys in Sodium Chloride Solution

2016 ◽  
Vol 44 ◽  
pp. 29-35
Author(s):  
Abul Hossain ◽  
M. A. Gafur ◽  
Fahmida Gulshan ◽  
A. S. W. Kurny
Keyword(s):  
Corrosion Behavior ◽  
Polarization Resistance ◽  
Corrosion Potential ◽  
Electrochemical Corrosion ◽  
Open Circuit ◽  
Test Results ◽  
Nacl Solution ◽  
Cu Content ◽  
Electrochemical Corrosion Behavior ◽  
Peak Aged

The purpose of this study is to understand the electrochemical corrosion behavior of 1wt% Cu content Al-6Si-0.5Mg alloy in 0.1M NaCl solution. The potentiodynamic polarization curves reveal that 1wt% Cu content alloy is less prone to corrosion than the Cu free alloy. The EIS test results show that corrosion resistance or polarization resistance (Rct) increases with the addition of 1wt% Cu to Al-6Si-0.5Mg alloy. Higher polarization resistance (Rp) has been obtained with the addition of 1wt% Cu to the Al-6Si-0.5Mg alloy. Due to addition of Cu and thermal modification, the magnitude of open circuit potential (OCP), corrosion potential (Ecorr) and pitting corrosion potential (Epit) of Al-6Si-0.5Mg alloy in NaCl solution were shifted to the more noble direction.

Combined Effect of Ag and Mg Additions on Localized Corrosion Behavior of Al-Cu Alloys with High Cu Content

2020 ◽  
Vol 29 (9) ◽  
pp. 6108-6117
Author(s):  
Jian Wang ◽  
Zhiyi Liu ◽  
Song Bai ◽  
Jing Cao ◽  
Juangang Zhao ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Combined Effect ◽  
Localized Corrosion ◽  
Cu Content ◽  
Cu Alloys

The intergranular corrosion behavior of 6000-series alloys with different Mg/Si and Cu content

2017 ◽  
Vol 405 ◽  
pp. 489-496 ◽  
Author(s):  
Yun Zou ◽  
Qing Liu ◽  
Zhihong Jia ◽  
Yuan Xing ◽  
Lipeng Ding ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Intergranular Corrosion ◽  
Cu Content

Effect of Cu on the Electrochemical Corrosion Behavior of Sn-8Zn-3Bi Lead-Free Solder Alloy

2015 ◽  
Vol 1095 ◽  
pp. 95-98
Author(s):  
Li Ma ◽  
Qiang Hu ◽  
Yan Bin Sun
Keyword(s):  
Corrosion Resistance ◽  
Solder Alloy ◽  
Corrosion Behavior ◽  
Corrosion Potential ◽  
Electrochemical Corrosion ◽  
Lead Free ◽  
Lead Free Solder ◽  
Cu Content ◽  
Electrochemical Corrosion Behavior ◽  
Free Solder

The electrochemical corrosion behavior of the Sn-8Zn-3Bi-xCu lead-free solder in 3.5%NaCl solution was studied to reveal effect of Cu addition on the corrosion resistance of Sn-8Zn-3Bi solder alloy. The results showed that adding Cu element increased the corrosion potential of Sn-8Zn-3Bi-xCu solder alloysThe corrosion resistance of Sn-8Zn-3Bi-xCu solder alloys was improved correspondingly. The corrousion product of Sn-8Zn-3Bi-xCu alloy was mainly zinc oxide. More corrosion products were observed with the increse of Cu content.

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