A new thermal process was developed that reverses the sensitization in highly corrosion susceptible 5xxx aluminum alloys and effectively stabilizes the plate to a non
We address here an important issue related to sensitization effects in Al5083 by mitigating the grain boundary precipitation of the beta phase and demonstrate that the addition
Aluminum-magnesium alloys are ideal for ship construction; however, these alloys can become sensitized and susceptible to intergranular corrosion when exposed to moderately elevated
the disclosed method is directed toward locally reversing sensitization in 5xxx aluminum plates. This inventive disclosure utilizes a heat treatment analogous to a mill stabilization...
A stabilization treatment has been developed to reverse sensitization and restore corrosion resistance such that in-service plate can be refurbished rather than replaced. This treatment
For Al 5xxx alloys, the degree of sensitization caused by int ergranular corrosion was obtained from ASTM G67 nitric acid mass loss test (NA MLT) results. Fig.
To this end, the present work reports the effect of post-sensitisation heat treatment (termed ‘reversion’) as applied to a field retrieved sensitised 5xxx alloy which failed
Moderately higher than room temperature exposures can sensitize marine grade 5xxx series aluminum alloys, making them susceptible to intergranular corrosion and stress
Sensitization can occur in 5xxx aluminum alloy utilized in welded ship structures. Cumulative exposure of plating to elevated temperatures causes magnesium in the aluminum
Moderately higher than room temperature exposures can sensitize marine grade 5xxx series aluminum alloys, making them susceptible to intergranular corrosion and stress
关键字：铝镁合金、Er、长期耐蚀性、稳定化 参考文献 [1] Kramer L, Phillippi M, Tack W T, Wong C. Locally Reversing Sensitization in 5xxx Aluminum Plate [J]. Journal of
For instance, Kramer reported that the thermal process in the range of 240–280 °C can reverse the sensitization in highly corrosion susceptible 5xxx Al alloys by forming of
Magnesium content has been identified as the root cause of 5xxx aluminum being susceptible to sensitization. Marine grade alloys have magnesium contents that range
Locally Reversing Sensitization in 5xxx Aluminum Plate. L. Kramer; M. Phillippi; C. Wong; OriginalPaper 22 July 2011 Pages: 1025 - 1029 Phase Transformations and Microstructural
8.6 L Kramer, M Phillippi, WT Tack, and C Wong, “Locally reversing sensitization in 5xxx aluminum plate”, Journal of Materials Engineering and Performance, 21 (2012) 1025-1029 8.7
Abstract The technology required for the design, fabrication, operation, and maintenance of aluminum structures for ships and craft is reviewed to assess the needs for
All aluminum alloys, 2024-T351, 5083-H116, 6061-T6 and 7075-T651, tested were from a 6.35 mm (0.25 in.) plate with no clad layer. Rectangular specimens, 5.4 mm × 5.4
Locally Reversing Sensitization in 5xxx Aluminum Plate L. Kramer, M. Phillippi, W.T. Tack, and C. Wong (Submitted October 21, 2010; in revised form June 14, 2011) Aluminum-magnesium
The 5xxx series aluminium alloys are susceptible to sensitisation during service at elevated temperatures. Sensitisation refers to deleterious grain boundary precipitation
Locally Reversing Sensitization in 5xxx Aluminum Plate L. Kramer, M. Phillippi, W.T. Tack, and C. Wong (Submitted October 21, 2010; in revised form June 14, 2011)
The 5xxx series (Al-Mg-based) aluminum alloys suffer from intergranular corrosion and intergranular stress corrosion cracking when the alloy has become "sensitized." Sensitization
Detecting heat damage and eliminating the susceptibility to sensitization of wrought 5xxx series aluminum-magnesium alloys is of practical importance for the remediation