The effect of strain-rate sensitivity on formability of AA 5754-O at cold and warm temperatures

Fahrettin Ozturk; Hakan Pekel; Huseyin S. Halkaci

doi:10.1007/s11665-010-9652-y

The effect of strain-rate sensitivity on formability of AA 5754-O at cold and warm temperatures

Fahrettin Ozturk^*, Hakan Pekel, Huseyin S. Halkaci

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Aluminum-magnesium (Al-Mg) alloys have been widely used in diverse applications ranging from automotive bodies to food processing industries because of their excellent high-strength-to-weight ratio, corrosion resistance, and recyclability potential. The formability of these alloys is decreased at room temperature (RT) and is related with the strain-rate sensitivity. This study presents the effect of strain-rate sensitivity on formability of AA 5754-O alloy sheet at a test temperature range of -60 to 250 °C by duplicate tensile test at different strain rates. The test results indicated that the formability change with positive or negative strain-rate sensitivity values. It was observed that the strain-rate sensitivity values increased at negative temperatures with respect to RT. The best formability condition for this alloy in the test ranges was observed at 250 °C and 0.0016 s ^-1.

Original language	English
Pages (from-to)	77-81
Number of pages	5
Journal	Journal of Materials Engineering and Performance
Volume	20
Issue number	1
DOIs	https://doi.org/10.1007/s11665-010-9652-y
Publication status	Published - Feb 2011
Externally published	Yes

Keywords

AA 5754-O
Al-Mg alloys
formability
Portevin-Le Chatelier (PLC) effect
strain-rate sensitivity (m)

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10.1007/s11665-010-9652-y

Cite this

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title = "The effect of strain-rate sensitivity on formability of AA 5754-O at cold and warm temperatures",

abstract = "Aluminum-magnesium (Al-Mg) alloys have been widely used in diverse applications ranging from automotive bodies to food processing industries because of their excellent high-strength-to-weight ratio, corrosion resistance, and recyclability potential. The formability of these alloys is decreased at room temperature (RT) and is related with the strain-rate sensitivity. This study presents the effect of strain-rate sensitivity on formability of AA 5754-O alloy sheet at a test temperature range of -60 to 250 °C by duplicate tensile test at different strain rates. The test results indicated that the formability change with positive or negative strain-rate sensitivity values. It was observed that the strain-rate sensitivity values increased at negative temperatures with respect to RT. The best formability condition for this alloy in the test ranges was observed at 250 °C and 0.0016 s -1.",

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T1 - The effect of strain-rate sensitivity on formability of AA 5754-O at cold and warm temperatures

AU - Ozturk, Fahrettin

AU - Pekel, Hakan

AU - Halkaci, Huseyin S.

PY - 2011/2

Y1 - 2011/2

N2 - Aluminum-magnesium (Al-Mg) alloys have been widely used in diverse applications ranging from automotive bodies to food processing industries because of their excellent high-strength-to-weight ratio, corrosion resistance, and recyclability potential. The formability of these alloys is decreased at room temperature (RT) and is related with the strain-rate sensitivity. This study presents the effect of strain-rate sensitivity on formability of AA 5754-O alloy sheet at a test temperature range of -60 to 250 °C by duplicate tensile test at different strain rates. The test results indicated that the formability change with positive or negative strain-rate sensitivity values. It was observed that the strain-rate sensitivity values increased at negative temperatures with respect to RT. The best formability condition for this alloy in the test ranges was observed at 250 °C and 0.0016 s -1.

AB - Aluminum-magnesium (Al-Mg) alloys have been widely used in diverse applications ranging from automotive bodies to food processing industries because of their excellent high-strength-to-weight ratio, corrosion resistance, and recyclability potential. The formability of these alloys is decreased at room temperature (RT) and is related with the strain-rate sensitivity. This study presents the effect of strain-rate sensitivity on formability of AA 5754-O alloy sheet at a test temperature range of -60 to 250 °C by duplicate tensile test at different strain rates. The test results indicated that the formability change with positive or negative strain-rate sensitivity values. It was observed that the strain-rate sensitivity values increased at negative temperatures with respect to RT. The best formability condition for this alloy in the test ranges was observed at 250 °C and 0.0016 s -1.

KW - AA 5754-O

KW - Al-Mg alloys

KW - formability

KW - Portevin-Le Chatelier (PLC) effect

KW - strain-rate sensitivity (m)

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The effect of strain-rate sensitivity on formability of AA 5754-O at cold and warm temperatures

Abstract

Keywords

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