Sensitivity analysis for effects of heat treatment, stress, and temperature on AlSi12CuNiMg aluminum alloy behavior under force-controlled creep loading

Golshan, Amir Masoud Afsari; Aroo, Hanieh; Azadi, Mohammad

doi:10.1007/s00339-020-04134-9

Cited by 3 publications

(3 citation statements)

References 41 publications

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“…Other studies also reported that the operating temperature plays an important role in influencing the creep behavior of aluminum alloys. The two important creep parameters, creep strain and creep strain rate, tend to increase with temperature, as reported by the studies conducted by Yu W. et al [20], Zhang et al [21], and Golshan et al [22]. Zhan et al [23] investigated the creep behavior of 2A14 aluminum alloy at different temperatures by conducting a creep test, and the results show that the creep strain and creep strain rate increase with temperature.…”

Section: Introductionmentioning

confidence: 80%

“…Another study by Zhang et al [21] found that the creep resistance of cast aluminum alloys decreases with increasing temperature, particularly between 200°C and 300°C. Golshan et al [22] analyzed the effects of temperature on the creep behavior of the AlSi12CuNiMg aluminum alloy. They found that an increase in temperature resulted in a decrease in the creep lifetime and an increase in the minimum strain rate.…”

Section: Introductionmentioning

confidence: 99%

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Material characterization of EN AC-Al Si12CuNiMg alloy in stress relaxation and creep conditions

Sirata,

Waclawiak

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Al–Cu–Mg alloys are widely used in various applications, especially engine components, where it is subjected to elevated temperatures during operation. Prolonged exposure of these components to elevated temperatures gradually leads to creep and relaxation phenomena. This study aims to investigate the effects of temperature on stress relaxation and creep behavior of the aluminum-silicon alloy EN AC-Al Si12CuNiMg. Furthermore, this study evaluates the effect of temperature on the rheological model parameters of this alloy. Experimental tests were conducted to investigate the stress relaxation and creep behavior of this alloy at different temperatures of 150°C, 250°C, and 350°C. The rheological model parameters were then determined from the obtained experimental data. The Standard Linear Solid Model (SLSM) was used to fit the stress relaxation and creep curves obtained from the experiment. Overall, the results indicate that increasing temperature significantly affects the stress relaxation and creep behavior of the investigated alloy, with higher temperatures leading to increased relaxation and creep rates. Additionally, the rheological model parameters of the alloy were found to vary with temperature.

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Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Material characterization of EN AC-Al Si12CuNiMg alloy in stress relaxation and creep conditions

Sirata,

Waclawiak

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…However, ageing at 525 °C for 200 hours caused the creep strength reduction. Golshan et al [11] studied the influences of the heat treatment, the stress and the temperature on the creep behavior of AlSi12CuNiMg aluminum alloys. They observed higher creep lifetime and lower strain rate on heat-treated samples.…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Azadi,

Behmanesh,

Aroo

2021

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Aluminum alloys, due to appropriate strength to weight ratio, are widely used in various industries, including automotive engines. This type of structures, due to high-temperature operations, are affected by the creep phenomenon; thus, the limited lifetime is expected for them. Therefore, in designing these types of parts, it is necessary to have sufficient information about the creep behavior and the material strength. One way to improve the properties is to add nanoparticles and fabricate a metal-based nano-composite. In the present research, failure mechanisms and creep properties of piston aluminum alloys were experimentally studied. In experiments, working conditions of combustion engine pistons were simulated. The material was composed of the aluminum matrix, which was reinforced by silicon oxide nanoparticles. The stir-casting method was used to produce the nano-composite by aluminum alloys and 1 wt.% of nanoparticles. The extraordinary model included the relationships between the stress and the temperature on the strain rate and the creep lifetime, as well as various theories such as the regression model. For this purpose, the creep test was performed on the standard sample at different stress levels and a specific temperature of 275 ℃. By plotting strain-time and strain rate-time curves, it was found that the creep lifetime decreased by increasing stress levels from 75 MPa to 125 MPa. Moreover, by comparing the creep test results of nanoparticle-reinforced alloys and nanoparticle-free alloys, 40% fall was observed in the reinforced material lifetime under 75 MPa. An increase in the strain rate was also seen under the mentioned stress. It is noteworthy that under 125 MPa, the creep lifetime and the strain rate of the reinforced alloy increased and decreased, respectively, compared to the piston alloy. Finally, by analyzing output data by the Minitab software, the sensitivity of the results to input parameters was investigated.

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Wear resistance and tribological properties of GNPs and MWCNT reinforced AlSi18CuNiMg alloys produced by stir casting

Turan

Aydın

Sun

et al. 2021

Tribology International

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Sensitivity analysis for effects of heat treatment, stress, and temperature on AlSi12CuNiMg aluminum alloy behavior under force-controlled creep loading

Cited by 3 publications

References 41 publications

Material characterization of EN AC-Al Si12CuNiMg alloy in stress relaxation and creep conditions

Material characterization of EN AC-Al Si12CuNiMg alloy in stress relaxation and creep conditions

Archives of Foundry Engineering

Wear resistance and tribological properties of GNPs and MWCNT reinforced AlSi18CuNiMg alloys produced by stir casting

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