Two-stage aging method for improving intercrystalline corrosion resistance of 6000 series of aluminium alloy
An intergranular corrosion and double-stage aging technology, applied in the field of aluminum alloy heat treatment, can solve the problems of cumbersome process steps and long treatment period, and achieve the effect of simple process steps and short treatment period
Inactive Publication Date: 2014-05-07
CHANGZHOU UNIV
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The technical scheme adopted by the invention is a two-stage aging method for improving the intercrystalline corrosion resistance of 6000 series of aluminium alloy. The two-stage aging method comprises the following steps: after carrying out solid-dissolving treatment and quenching on the 6000 series of aluminium alloy, respectively carrying out (1) high-temperature preaging and (2) low-temperature reaging. The two-stage aging method has the beneficial effects that the purposes of improving the intercrystalline corrosion resistance of 6000 series of Al-Mg-Si-Cu aluminium alloy and maintaining the strength are realized; simultaneously, the method is simple in process step and short in treating period and is suitable for industrial production.
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Solution treatmentAge method +5
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Property | Measurement | Unit |
Yield strength | 315.0 ~ 342.0 | mPa |
Yield strength | 326.0 ~ 351.0 | mPa |
Yield strength | 332.0 ~ 362.0 | mPa |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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