scholarly journals Results Of A Simple Corrosion Experiment In A Freshman Materials Course

2020 ◽  
Author(s):  
John R. Williams
Keyword(s):  
Corrosion Experiment

Research on Refractory Material Corrosion in Steelmaking Engineering

2012 ◽  
Vol 578 ◽  
pp. 146-149 ◽  
Author(s):  
Ding Guo Zhao ◽  
Shu Huan Wang ◽  
Xiao Jie Cui ◽  
Jian Long Guo
Keyword(s):  
Silicon Carbide ◽  
Refractory Material ◽  
Intermediate Frequency ◽  
Corundum Refractory ◽  
Slag Line ◽  
Carbide Refractory ◽  
Corrosion Experiment ◽  
Refractory Corrosion ◽  
Silicon Carbide Refractory ◽  
Different Parts

Researched on the refractory material corrosion by experiments. Each refractory was measured to take four different parts, and the average corrosion thicknesses of silicon carbide, quartz and corundum were 0.52mm, 1.03mm and 1.40mm. The corrosion of corundum refractory was most serious, and quartz refractory had a certain degree of corrosion, but it was not very serious. The corrosion of silicon carbide refractory was the least. In the experiment in intermediate frequency furnace, only upper and lower parts of slag line were connected to the refractory and the degree of corrosion was little for silicon carbide crucible. Slag part of the wall thickness was about 16.6mm after the reaction. Amorphous master alloy parts of the wall thicknessis about 16.9mm. For quartz crucible, refractory corrosion was much bigger, which was 10 mm thick before reaction. The erosion thick was about 2~3mm. It was a little thicker than corrosion experiment in static crucible.

Analysis on Corrosion Resistance of the Cast Manganese Steel by Shock Excitation and Rotation Method

2013 ◽  
Vol 568 ◽  
pp. 9-13
Author(s):  
J.L. Wang ◽  
H.F. Wang ◽  
L. Pang
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Property ◽  
Manganese Steel ◽  
Shock Excitation ◽  
Casting Technology ◽  
Rotation Method ◽  
Corrosion Experiment ◽  
Better Than

The corrosion property of the cast manganese steel by shock excitation and rotation method was done by the corrosion experiment. The experiment showed the corrosion resistance of the cast manganese steel by shock excitation and rotation method was better than that of the cast manganese steel by traditional casting technology. In addition, the experiment results showed that corrosion weightlessness was increased with the time increasing. In twenty-four hours, the corrosion of the casting manganese steel could not very serious with the time increasing, but exceeding twenty-four hours, the corrosion degree of the casting manganese steel would increase with the time increasing.

Mechanical Property Study of Brine Corroded High Performance Concrete (HPC)

2013 ◽  
Vol 405-408 ◽  
pp. 2865-2870 ◽  
Author(s):  
Peng Gao ◽  
Hong Fa Yu
Keyword(s):  
Mechanical Property ◽  
Compressive Strength ◽  
Inner Mongolia ◽  
High Performance ◽  
High Performance Concrete ◽  
Good Resistance ◽  
Mix Proportion ◽  
Corrosion Experiment ◽  
Salt Brine ◽  
Curing Age

4 kinds of mix proportion High performance concrete (HPC) was manufactured, whose material was produced from Inner Mongolia areas. The compressive strength and the flexural strength of HPC were obtained by the Brine Corrosion experiments. And the resistance to corrosion of HPC was analyzed by the data of Brine Corrosion experiment. Furthermore, the concrete standard curing age of HPC samples was adopted as 28d and 90d, which could impact the resistance of high performance concrete in salt brine corrosion environment. It was turned out that 4 kinds of mix proportion HPC produced a good resistance in salt brine corrosion environment. And the longer the concrete standard curing age was adopted, the better resistance in salt brine corrosion environment of HPC could produce.

Experimental Study of the Corrosion Behaviors on the Rod and Tube Material in Oil Pumping Wells

2011 ◽  
Vol 239-242 ◽  
pp. 1790-1793
Author(s):  
You Qiang Wang
Keyword(s):  
Production Efficiency ◽  
Electrochemical Corrosion ◽  
Oil Production ◽  
Oil Well ◽  
Chemical Corrosion ◽  
Electrode Potentials ◽  
Short Period ◽  
Corrosion Experiment ◽  
Corrosion Behaviors ◽  
Materials Used

To study the corrosion behaviors on the rod and tube materials used in oil well is very important for prolonging oil well repairing periods, lowering oil production maintenance costs and increasing oil production efficiency. Through selecting some kinds of tube and rod materials which are always used in oilfield, chemical corrosion experiment and electrochemical corrosion experiment were carried out under different conditions. The results show that the corrosion rates are accelerated with material prestress increasing, liquid mineralization rate and temperature rising. The nitrified materials have better corrosive resistance than untreated materials. The electrochemical corrosion experiment results show that the electrode potentials of four materials (45, 20CrMo, J55, N80) have tiny difference and don’t exceed 20mV. The bimetallic corrosion tests show that the couple corrosion of the four selected materials pair can be ignored under short period and oxygen conditions.

Effect of Na2O-SiO2 Slag Treatment on Hydrometallurgical Purification of Metallurgical Grade Silicon

2013 ◽  
Vol 420 ◽  
pp. 139-143 ◽  
Author(s):  
M. Fang ◽  
C.H. Lu ◽  
H.X. Lai ◽  
L.Q. Huang ◽  
J. Chen ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Acid Corrosion ◽  
Intermetallic Phases ◽  
Leaching Behavior ◽  
Metallurgical Grade Silicon ◽  
Metal Impurities ◽  
Precipitated Phase ◽  
Slag Treatment ◽  
Corrosion Experiment ◽  
Grade Silicon

The effects of Na2O-SiO2slag treatment on purification of metallurgical grade silicon by leaching with hydrogen fluoride have been investigated. A comparative analysis of microstructure evolution was carried out to examine the leaching behavior of impurities from metallurgical grade silicon. It was found that the distribution of metal impurities Al, Ca, Ti and Na, which co-deposited with Si and formed different intermetallic phases at grain boundaries, had manifest distinction between precipitated phase and silicon. Moreover, acid corrosion experiment results revealed that slag treatment improved the dissolution rate of metal impurities from metallurgical grade silicon as contrasted to that without slag treatment.

Research on the Durability of Reinforced Chemically Bonded Ceramics-Based Concrete Structural Members in Marine Environment

2014 ◽  
Vol 1044-1045 ◽  
pp. 189-194
Author(s):  
Zhong Xin Li ◽  
Qi Dong ◽  
Zhuo Bin Wei
Keyword(s):  
Marine Environment ◽  
Accumulation Rate ◽  
Chloride Ion ◽  
Structural Members ◽  
Ion Permeability ◽  
Chloride Ion Penetration ◽  
Corrosion Experiment ◽  
Electric Flux ◽  
Astm C1202 ◽  
Weight Loss Ratio

In order to study the durability of reinforced chemically bonded ceramics-based concrete structural members in marine environment, both the experiment of chloride ion permeability-resistance and rapid corrosion experiment of rebar in the CBC concrete were conducted. The methods of ASTM C1202,RCM and NEL were used to comprehensively assess the ability of chloride ion permeability-resistance of CBC concrete, electric flux and unsteady migration coefficients were taken as estimate indexes, while in the rapid corrosion experiment of rebar under the condition of immersing-drying circulating, rusty accumulation rate and weight loss ratio were taken as estimate indexes. The results of experiments indicate that CBC concrete has strong resistibility for chloride ion penetration, however, it cannot protect the internal rebar effectively, for the reason that the rebar in this test has been seriously corroded.

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