Effect of Aging on Corrosion Behavior of Martensite Phase in Cu-Al-Ni Shape Memory Alloy

Dawood, Nawal Mohammed; Ali, A.

doi:10.4028/p-3jm065

Cited by 6 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cu-based SMAs are increasingly being utilized in marine, structural, and industrial applications due to their desirable combination of properties [1][2][3][4][5][6][7]. In the marine sector, for instance, Cu-based SMAs are now being considered for heat exchanger tubings and piping systems [8,9].…”

Section: Introductionmentioning

confidence: 99%

Wear and corrosion behavior of selected up-quenched and step-quenched CuZnSn shape memory alloys

Anaele,

Alaneme,

Omotoyinbo

2023

Manufacturing Rev.

View full text Add to dashboard Cite

The effect of thermal treatment on the wear and corrosion behavior of three categories of Cu-Zn-Sn-Fe SMAs designated A, B, and C is studied. Wear properties were investigated using a tribometer whilst corrosion in 0.3 M H2SO4 and 3.5%NaCl media was studied using the potentiodynamic polarization method. The microstructure of the alloys mainly consists of FCC Cu-rich phase and Cu5Zn8 phase. The up-quenched A alloys show the highest hardness and lowest wear rate values of 72.1 HRB and 0.143 mm3/N/m respectively. Average COF was higher for the samples subjected to direct-quenching (0.35–0.12) than the up-quenched (0.16–0.12) and step-quenched (0.2–0.08) samples. Wear occurred by mixed mode mechanisms of abrasion and adhesion evident by grooves and wear particles on the surface. In 0.3 M H2SO4 medium, step-quenched alloys had corrosion rates in the range of 0.1022 to 1.1705 mm/yr, which is lower than the range of 0.1466 to 0.2855 mm/yr, and 0.1730 to 0.6027 mm/yr obtained for direct quenched and up-quenched samples respectively. In 3.5% NaCl solution, step-quenched alloys had the lowest corrosion rates 0.0251 mm/yr relative to samples subjected to up-quenching and direct quenching treatment. Generally, step-quenching treatment effectively improved the corrosion resistance of alloys in both media.

show abstract

Section: Introductionmentioning

confidence: 99%

Wear and corrosion behavior of selected up-quenched and step-quenched CuZnSn shape memory alloys

Anaele,

Alaneme,

Omotoyinbo

2023

Manufacturing Rev.

View full text Add to dashboard Cite

show abstract

“…The purpose of present investigation is study the effect of Thermo Mechanical Treatment performed at range ( 260,280 ,300 )°C with compression in special device manufactured and calibrated for this purpose to improve the corrosion resistance especially in Braine solution (NaCl,2H2O) at three domain of temperature ( 25,45 ,65)°C by Potentiondynamic Polarization test to calculate the corrosion rate based on the Icorr and Vcorr values. And we noted to the other studied the corrosion rate and corrosion resistance such as , Influence of aging on Corrosion behavior of martensite phase in Cu-Al-Ni SMA Dawood,etal [3] . The effect of iron addition on the corrosion resistance behavior of Cu-Al-Ni SMA -Raheem , etal [4].…”

Section: Introductionmentioning

confidence: 73%

The Influence of Thermo Mechanical Treatment on Corrosion Resistance of Cu-Al-Ni Shape Memory Alloy

Dawood

Adnan

2022

MSF

View full text Add to dashboard Cite

In This Study that includes the thermal treatment with mechanical in compression at constant loading of 30 KN Was investigated by using the three Different temperature at (260-280-300)°C for Cu-14%Al-4.5Ni then Potentiondynamics polarization tests were applied to the Alloys with Microstructure by Scanning Electron Microscope SEM results shows an decrease in corrosion rates and increasing in corrosion resistance with the Increase of working temperature.

show abstract

“…There are certain drawbacks to the relatively less expensive Cu-based SMAs (Cu-Zn-Al, Cu-Al-Ni, and Cu-Al-Mn), which stated to be second only to Ni-Ti by SM qualities [10]. Additionally, they have a propensity to age naturally, which alters their shape memory behavior by increasing the temperature at which austenite and martensite transition occurs [11,12]. Since there are still gaps in the results to date and Cu-based SMAs remain the most appealing long-term replacement for Ni-Ti due to their comparably lower cost, research on these materials will continue to draw interest.…”

Section: Introductionmentioning

confidence: 99%

Effect of Varying Beryllium Addition on Microstructure, and Corrosion Behaviors of Cu-Zn-Al Shape Memory Alloys

Dawood

Salim

2023

MSF

Self Cite

View full text Add to dashboard Cite

Due to their properties, potential for demonstrating shape memory behavior, and cheaper cost, copper-based SMA materials hold great promise for use in a variety of industrial and medical applications. This work used powder metallurgy to create Cu-based SMA using Cu-25Zn-4Al as the master alloy. The master alloy having Beryllium additions of (0.4, 0.8, and 1.2%wt.) was studied. After combining the powders, all samples were compacted using compaction stresses of (800 MPa). Then, the process of sintering in a tube furnace using argon gas has been accomplished in three stages, the first stage lasting two hours at 350°C, the second lasting two hours at 550°C, and the third lasting three hours at 900°C. All samples are treated with a solution heat treatment that involves heating them to 850 °C for an hour, quenching them quickly in saline ice water, and then aging them at 450 °C for 180 minutes. According to linear polarization tests the adding 1.2 weight percent of the Be to the base alloy (Cu-25Zn-4Al alloy) decreased corrosion rate by (95%) as compared to the base sample in a 3.5 weight percent NaCl solution. Keywords-Cu-Zn-Al shape memory alloys, corrosion behavior, shape memory properties, Beryllium, microstructure

show abstract

Effect of Aging on Corrosion Behavior of Martensite Phase in Cu-Al-Ni Shape Memory Alloy

Cited by 6 publications

References 33 publications

Wear and corrosion behavior of selected up-quenched and step-quenched CuZnSn shape memory alloys

Wear and corrosion behavior of selected up-quenched and step-quenched CuZnSn shape memory alloys

The Influence of Thermo Mechanical Treatment on Corrosion Resistance of Cu-Al-Ni Shape Memory Alloy

Effect of Varying Beryllium Addition on Microstructure, and Corrosion Behaviors of Cu-Zn-Al Shape Memory Alloys

Contact Info

Product

Resources

About