scholarly journals Corrosion Behavior of Al-3.0 wt.%Mg Alloy by Cold-Drawing Process

2020 ◽  
pp. 1727-1741
Author(s):  
Xin Zhang ◽  
Keyword(s):  
Corrosion Behavior ◽  
Cold Drawing ◽  
Mg Alloy ◽  
Drawing Process

Corrosion behavior of AZ91 Mg alloy with a heterogeneous structure produced by ECAP

2021 ◽  
pp. 109517
Author(s):  
Zhenquan Yang ◽  
Aibin Ma ◽  
Bingqian Xu ◽  
Jinghua Jiang ◽  
Jiapeng Sun
Keyword(s):  
Corrosion Behavior ◽  
Mg Alloy ◽  
Heterogeneous Structure

Variation of Residual Stresses in Drawn Copper Tubes

2008 ◽  
Vol 571-572 ◽  
pp. 21-26 ◽  
Author(s):  
Adele Carradò ◽  
D. Duriez ◽  
Laurent Barrallier ◽  
Sebastian Brück ◽  
Agnès Fabre ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Residual Stresses ◽  
Material Flow ◽  
Cold Drawing ◽  
Axisymmetric Deformation ◽  
Tube Length ◽  
Inhomogeneous Deformation ◽  
Drawing Process ◽  
Process Step ◽  
Residual Strains

Seamless tubes are used for many applications, e.g. in heating, transport gases and fluids, evaporators as well as medical use and as intermediate products for hydroforming and various mechanical applications, where the final dimensions normally are given by some cold drawing steps. The first process step – piercing of the billet, for example by extrusion or 3-roll-milling - typically results in ovality and eccentricity in the tube causing non-symmetric material flow during the cold drawing process, i.e. inhomogeneous deformation. Because of this non-axisymmetric deformation and of deviations over tube length caused by moving tools, this process step generates residual stresses. To understand the interconnections between the geometrical changes in the tubes and the residual stresses, the residual strains in a copper tube had been measured by neutron diffraction.

Deformation Law of Cold Drawing Process of High Strength Bridge Cable Steel

2021 ◽  
Vol 1035 ◽  
pp. 801-807
Author(s):  
Xiao Lei Yin ◽  
Jian Cheng ◽  
Gang Zhao
Keyword(s):  
Strain Path ◽  
High Strength ◽  
Cold Drawing ◽  
Wire Drawing ◽  
Radial Deformation ◽  
Steel Bridge ◽  
Drawing Process ◽  
Single Pass ◽  
Potential Relationship ◽  
The Wire

High-strength cable-steel bridge is the “lifeline” of steel structure bridges, which requires high comprehensive mechanical properties, and cold-drawing is the most important process to produce high-strength cable-steel bridge. Therefore, through the ABAQUS platform, a bridge wire drawing model was established, and the simulation analysis on the process of stress strain law and strain path trends for high-strength bridge steel wire from Φ 12.65 mm by seven cold-drawing to Φ 6.90 mm was conducted. The simulation results show that the wire drawing the heart of the main axial deformation, surface and sub-surface of the main axial and radial deformation occurred, with the increase in the number of drawing the road, the overall deformation of the wire was also more obvious non-uniformity. In the single-pass drawing process, the change in the potential relationship of each layer of material was small, and multiple inflection points appeared in the strain path diagram; the change in the seven-pass potential relationship was more drastic, which can basically be regarded as a simple superposition of multiple single-pass pulls.

scholarly journals Formation and characteristic corrosion behavior of alternately lamellar arranged α and β in as-cast AZ91 Mg alloy

2019 ◽  
Vol 770 ◽  
pp. 549-558 ◽  
Author(s):  
Ying-Chao Zhao ◽  
Ming-Chun Zhao ◽  
Rong Xu ◽  
Long Liu ◽  
Jun-Xi Tao ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Mg Alloy

Effects of Pre-Strain on Exfoliation Corrosion Behavior in Al-Cu-Mg Alloy

2011 ◽  
Vol 21 (7) ◽  
pp. 1479-1484 ◽  
Author(s):  
Yao Li ◽  
Zhiyi Liu ◽  
Song Bai ◽  
Lianghua Lin ◽  
Lifang Gao
Keyword(s):  
Corrosion Behavior ◽  
Mg Alloy ◽  
Exfoliation Corrosion

Influence of Sc Addition on the Corrosion Behavior of Medium Strength Al-Zn-Mg Alloy

2018 ◽  
Vol 913 ◽  
pp. 439-444 ◽  
Author(s):  
Zhao Ming Li ◽  
Hai Chang Jiang ◽  
Yun Li Wang ◽  
Duo Zhang ◽  
De Sheng Yan ◽  
...  
Keyword(s):  
Weight Loss ◽  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Intergranular Corrosion ◽  
Relative Weight ◽  
Mg Alloy ◽  
Exfoliation Corrosion ◽  
Medium Strength ◽  
Relative Weight Loss ◽  
Sc Addition

In this paper, the effect of Sc addition (0.06 wt%) on the corrosion behavior of medium strength Al-Zn-Mg alloy is investigated by mass loss measurements, electrochemical experiment, intergranular corrosion and exfoliation corrosion tests. The results indicate the addition of Sc reduces the relative weight loss and enhances pitting performance as a result of grain refinement. The improved intergranular corrosion and exfoliation corrosion resistance caused by minor Sc addition are mainly attributed to the delay in both the initiation and advance stages of local corrosion.

Microstructure and Stress Corrosion Behavior of MIG Welded Joint Al–Zn–Mg Alloy

2018 ◽  
pp. 325-335
Author(s):  
Lingying Ye ◽  
Wenqing Yang ◽  
Chuqi Jiang ◽  
Huaqiang Lin ◽  
Shengdan Liu ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Corrosion Behavior ◽  
Welded Joint ◽  
Mg Alloy
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