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Vaynman, Semyon; Isheim, Dieter; Kolli, R. Prakash; Bhat, Shrikant P.; Seidman, David N.; Fine, Morris E. |
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Publication |
High-Strength Low-Carbon Ferritic Steel Containing Cu-Fe-Ni-Al-Mn Precipitates |
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Journal Article |
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2008 |
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Abstract |
Metallurgical and Materials Transactions A |
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39 |
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2 |
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Summary Language |
363-373 |
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High-Strength; Low-Carbon; Ferritic; Steel; Precipitates |
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Abbreviated Series Title |
An investigation of a low-carbon, Fe-Cu–based steel, for Naval ship hull applications, with a yield strength of 965 MPa, Charpy V-notch absorbed impact-energy values as high as 74 J at –40 °C, and an elongation-to-failure greater than 15 pct, is presented. The increase in strength is derived from a large number density (approximately 1023 to 1024 m−3) of copper-iron-nickel-aluminum-manganese precipitates. The effect on the mechanical properties of varying the thermal treatment was studied. The nanostructure of the precipitates found within the steel was characterized by atom-probe tomography. Additionally, initial welding studies show that a brittle heat-affected zone is not formed adjacent to the welds. |
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1073-5623 |
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NU @ m-krug @ |
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10195 |
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