scholarly journals Mechanical response of aluminum 7075 with heat treatment and exfoliation corrosion

2021 ◽  
Author(s):  
Mohammad Yaseen Kittur ◽  
M.I. Kittur ◽  
Avala Raji Reddy ◽  
Maughal Ahmed Ali Baig ◽  
Ridwan ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Mechanical Response ◽  
Exfoliation Corrosion ◽  
Aluminum 7075

ALUMINUM 7075

Alloy Digest ◽  
1973 ◽  
Vol 22 (2) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Temperature Performance ◽  
Aluminum 7075

Abstract ALUMINUM 7075 is a wrought precipitation-hardenable aluminum alloy having excellent mechanical properties, workability and response to heat treatment and refrigeration. (This alloy is covered under its previous designation, ALUMINUM 75S, in Alloy Digest Al-5, February 1953). This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-179. Producer or source: Various aluminum companies.

scholarly journals Improvement of Mechanical Properties of Plasma Sprayed Al2O3-ZrO2-SiO2 Amorphous Coatings by Surface Crystallization

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3232 ◽  
Author(s):  
Jan Medricky ◽  
Frantisek Lukac ◽  
Stefan Csaki ◽  
Sarka Houdkova ◽  
Maria Barbosa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Wear Resistance ◽  
Large Scale ◽  
Mechanical Response ◽  
High Energy ◽  
Hardness Profile ◽  
Treatment Conditions ◽  
Content Ratio ◽  
Plasma Sprayed

Ceramic Al2O3-ZrO2-SiO2 coatings with near eutectic composition were plasma sprayed using hybrid water stabilized plasma torch (WSP-H). The as-sprayed coatings possessed fully amorphous microstructure which can be transformed to nanocrystalline by further heat treatment. The amorphous/crystalline content ratio and the crystallite sizes can be controlled by a specific choice of heat treatment conditions, subsequently leading to significant changes in the microstructure and mechanical properties of the coatings, such as hardness or wear resistance. In this study, two advanced methods of surface heat treatment were realized by plasma jet or by high energy laser heating. As opposed to the traditional furnace treatments, inducing homogeneous changes throughout the material, both approaches lead to a formation of gradient microstructure within the coatings; from dominantly amorphous at the substrate–coating interface vicinity to fully nanocrystalline near its surface. The processes can also be applied for large-scale applications and do not induce detrimental changes to the underlying substrate materials. The respective mechanical response was evaluated by measuring coating hardness profile and wear resistance. For some of the heat treatment conditions, an increase in the coating microhardness by factor up to 1.8 was observed, as well as improvement of wear resistance behaviour up to 6.5 times. The phase composition changes were analysed by X-ray diffraction and the microstructure was investigated by scanning electron microscopy.

Using heat treatment effects and EBSD analysis to tailor microstructure of hybrid Mg nanocomposite for enhanced overall mechanical response

2014 ◽  
Vol 30 (11) ◽  
pp. 1309-1320 ◽  
Author(s):  
S. Sankaranarayanan ◽  
R. K. Sabat ◽  
S. Jayalakshmi ◽  
Stefan Walker ◽  
S. Suwas ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Treatment Effects ◽  
Mechanical Response ◽  
Ebsd Analysis

Grain refinement and mechanical response of U-5.5 wt%Nb alloy produced by cold rolling and heat treatment

2017 ◽  
Vol 494 ◽  
pp. 72-78 ◽  
Author(s):  
Zhiyong Ren ◽  
Rong Ma ◽  
Guichao Hu ◽  
Jun Wu ◽  
Zhenhong Wang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Cold Rolling ◽  
Grain Refinement ◽  
Mechanical Response

scholarly journals Annealing-Induced Changes in the Microstructure and Mechanical Response of a Cu Nanofoam Processed by Dealloying

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1128
Author(s):  
Péter Jenei ◽  
Csilla Kádár ◽  
Gigap Han ◽  
Pham Tran Hung ◽  
Heeman Choe ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Mechanical Response ◽  
Bulk Material ◽  
Lithium Ion ◽  
Large Change ◽  
Oxide Content ◽  
Hardness Testing ◽  
Initial State ◽  
Induced Changes ◽  
Ligament Size

Cu nanoporous foams are promising candidates for use as an anode material for advanced lithium ion batteries. In this study, Cu nanofoam was processed from pack-cemented bulk material via dealloying. In the as-processed Cu nanofoam, the average ligament size was ~105 nm. The hardness in this initial state was ~2 MPa, and numerous cracks were observed in the indentation pattern obtained after hardness testing, thus indicating the low mechanical strength of the material. Annealing for 6 h under an Ar atmosphere at 400 °C was shown to result in crystalline coarsening and a reduction in the probability of twin faulting in the ligaments. Simultaneously, the junctions of the ligaments became stronger and hence more difficult to crack. This study demonstrates that moderate heat treatment under Ar can improve the resistance against crack propagation in Cu nanofoam without a large change in the ligament size and the surface oxide content, which can thus influence the electrochemical performance of the material in battery applications.

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