Development of ultrafine-grained 1100 aluminum alloy by cryorolling with the optimized initial heat treatment conditions

2016 ◽  
Author(s):  
Siti Aminah Zakaria ◽  
Zuhailawati Hussain ◽  
Anasyida Abu Seman
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Treatment Conditions ◽  
Ultrafine Grained ◽  
Initial Heat ◽  
Initial Heat Treatment

scholarly journals Influence of Pre-Aging on the Artificial Aging Behavior of a 6056 Aluminum Alloy after Conventional Extrusion

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 385
Author(s):  
Lisa Winter ◽  
Kristin Hockauf ◽  
Mario Scholze ◽  
Ralph Jörg Hellmig ◽  
Thomas Lampke
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Room Temperature ◽  
Artificial Aging ◽  
Solution Treatment ◽  
Natural Aging ◽  
Aging Behavior ◽  
Scanning Calorimetry ◽  
Initial Heat ◽  
Initial Heat Treatment

In the present study, the influence of the initial heat-treatment conditions on the artificial aging behavior after conventional linear extrusion at room temperature was investigated for the precipitation hardening of a 6056 aluminum alloy. A solution-annealed condition was systematically compared to naturally-aged and pre-aged conditions. Differential scanning calorimetry was used for analyzing the precipitation sequence and its dependence on the initial heat treatment. The natural aging behavior prior to extrusion and the artificial aging behavior after extrusion were determined by microhardness measurements as a function of the aging time. Furthermore, the microstructure, dependent on the induced strain, was investigated using optical microscopy and transmission electron microscopy. As a result of pre-aging, following a solid-solution treatment, the formation of stable room-temperature clusters was suppressed and natural aging was inhibited. The artificial aging response after extrusion was significantly enhanced by pre-aging, and the achieved hardness and strength were significantly higher when compared with the equally processed solution-annealed or naturally-aged conditions.

scholarly journals Effect of heat treatment conditions on mechanical properties of semi-liquid AC4CH aluminum alloy high-pressure castings

2008 ◽  
Vol 58 (8) ◽  
pp. 363-367 ◽  
Author(s):  
Satoru SATO ◽  
Yasunori HARADA ◽  
Hiroto SASAKI ◽  
Naoki ISHIBASHI ◽  
Mitsuru ADACHI
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Pressure ◽  
Aluminum Alloy ◽  
Treatment Conditions
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