scholarly journals Research and test of electrochemical corrosion in NC machining of 7 series aluminum alloy aircraft structure parts

2020 ◽  
Vol 546 ◽  
pp. 042053
Author(s):  
Qiang Xu ◽  
Xuezhen Chen ◽  
Ya Fei ◽  
Wei Wang
Keyword(s):  
Aluminum Alloy ◽  
Electrochemical Corrosion ◽  
Nc Machining ◽  
Aircraft Structure ◽  
Series Aluminum Alloy

Exploitation Load Impact on Electrochemical Properties of Shipbuilding 7xxx Series Aluminum Alloy Joints Prepared with TIG and FSW Methods

2015 ◽  
Vol 236 ◽  
pp. 53-61
Author(s):  
Wojciech Jurczak
Keyword(s):  
Mechanical Properties ◽  
Corrosion Potential ◽  
Tensile Load ◽  
Electrochemical Corrosion ◽  
High Strength ◽  
Shipbuilding Industry ◽  
Friction Stir ◽  
Superior Mechanical Properties ◽  
Series Aluminum Alloy ◽  
Joint Quality

The paper presents the results of investigations on mechanical properties and electrochemical potential distribution within arc welded (TIG) and friction stir welded (FSW) joints subjected to slow strain rate tests. The materials investigated were high-strength 7xxx series (7020 and its modification 7020M) aluminum alloys intended for shipbuilding. The objectives were joint quality assessment and comparison of the advantages of new FSW method with the traditional TIG methods commonly utilized in shipbuilding industry. Joint quality was evaluated based on mechanical investigations, hardness distribution tests and simultaneous electrochemical corrosion potential measurements at various locations within the welded joints.Initiation of corrosion processes on TIG and FSW joints was identified as a radical decrease in corrosion potential related to load followed by oxide layer cracking. Arc welded (TIG) joints of 7xxx series alloys undergo corrosion at lower values of tensile load applied as compared to the FSW joints. Superior mechanical properties and higher corrosion resistance of the FSW joints make this technology well-suited for joining high-strength 7xxx series alloys.

Study on Corrosion Damage Rule for Two Type of Aluminum Alloy

2014 ◽  
Vol 599-601 ◽  
pp. 111-113
Author(s):  
Dan Feng Zhang ◽  
Xiao Ming Tan ◽  
Dan Gui Zhang ◽  
Fang Zhang ◽  
Wei Zhang
Keyword(s):  
Aluminum Alloy ◽  
Statistical Analysis ◽  
Marine Environment ◽  
Corrosion Test ◽  
Corrosion Damage ◽  
Aircraft Structure ◽  
Accelerated Corrosion ◽  
Damage Repair ◽  
Accelerated Corrosion Test ◽  
Damage Rule

Corrosion exists everywhere. It’s very widespread that the aluminum alloy aircraft structure suffers the corrosion damage under the marine environment particularly. The equivalent accelerated corrosion test of the new aluminum alloy 2B06 and 7B04 was carried out.Corrosion damage was inspected and measured through microscope. The rule of the corrosion damage can be obtained by statistical analysis. And which can supply the reference basis for the corrosion damage repair and evaluating the calendar life.

Dimensional Variation in Long Runout Length Direct Extruded 6000 Series Aluminum Alloy

2018 ◽  
Author(s):  
Edward John Vinarcik ◽  
Gregory Talbert
Keyword(s):  
Aluminum Alloy ◽  
Long Runout ◽  
Series Aluminum Alloy ◽  
Dimensional Variation

Controlled Diffusion Solidification Pathway of an AA 7xxx Series Aluminum Alloy

2018 ◽  
Vol 50 (1) ◽  
pp. 326-335 ◽  
Author(s):  
Mohammad Pourgharibshahi ◽  
Hassan Saghafian ◽  
Mehdi Divandari ◽  
Giulio Timelli
Keyword(s):  
Aluminum Alloy ◽  
Controlled Diffusion ◽  
Series Aluminum Alloy ◽  
Solidification Pathway

On the suppression of Lüders elongation in high-strength Cu/Zn modified 5xxx series aluminum alloy

2020 ◽  
Vol 834 ◽  
pp. 155138
Author(s):  
Yingxin Geng ◽  
Di Zhang ◽  
Jishan Zhang ◽  
Linzhong Zhuang
Keyword(s):  
Aluminum Alloy ◽  
High Strength ◽  
Series Aluminum Alloy
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