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Preparation of bimodal grain size 7075 aviation aluminum ...

Oct 01, 2017  The bimodal grain size metals show improved strength and ductility compared to traditional metals; however, their corrosion properties are unknown. In order to evaluate the corrosion properties of these metals, the bimodal grain size 7075 aviation aluminum alloys containing different ratios of coarse (100 μm in diameter) and fine (10 μm in ...

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(PDF) Preparation of bimodal grain size 7075 aviation ...

In order to evaluate the corrosion properties of these metals, the bimodal grain size 7075 aviation aluminum alloys containing different ratios of coarse (100 μm in diameter) and fine (10 μm in ...

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Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU, Yujie DU ...

Accepted Manuscript Full Length Article Preparation of bimodal grain size 7075 aviation aluminum alloys and their cor-rosion properties Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU, Yujie DU

Effect of the microstructure generated by Repetitive ...

Oct 25, 2021  Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties Chinese J Aeronaut , 30 ( 2017 ) , pp. 1777 - 1788 , 10.1016/j.cja.2017.06.001 Article Download PDF View Record in Scopus Google Scholar

Effect of grain size uniformity and crystallographic ...

Sep 01, 2021  Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties Chinese J. Aeronaut. , 30 ( 2017 ) , pp. 1777 - 1788 , 10.1016/j.cja.2017.06.001 Article Download PDF View Record in Scopus Google Scholar

Author: Yujiao Wang, Yun Zhang, Haitao Jiang

Songmei LI's research works Beihang University (BUAA ...

In order to evaluate the corrosion properties of these metals, the bimodal grain size 7075 aviation aluminum alloys containing different ratios of coarse (100 μm in diameter) and fine (10 μm in ...

Wenming TIAN Doctor of Engineering school of materials ...

The bimodal grain sized 7075 aluminum alloys with different ratios of coarse and fine grains were prepared and naturally aged for 300 d. The effects of grain size on pitting characteristics of ...

Accelerated discovery of high-strength aluminum alloys by ...

Oct 12, 2020  The bimodal grain size distribution is usually ... control for arc welding of unweldable aluminum alloy 7075. ... Yujie, D. U. Preparation of bimodal grain size 7075 aviation aluminum alloys and ...

Effect of Rolling Deformation on Microstructure and ...

高达12%返现  Aug 18, 2021  Therefore, the effect mechanism of rolling deformation amount (80, 90%) on the microstructure evolution of 7085 aluminum alloy was studied in this work. The results show that the average size of aging precipitates decreases from 3.66 to 2.79 nm, and the width of PFZ (no precipitate free zone) decreases from 22.6 to 19.5 nm when the rolling ...

Author: Jinfeng Leng, Yunfan Dong, Binghui Ren, Xianglei Xu, Bao Zhu, Shuo Tian

Preparation of bimodal grain size 7075 aviation aluminum ...

Oct 01, 2017  The bimodal grain size metals show improved strength and ductility compared to traditional metals; however, their corrosion properties are unknown. In order to evaluate the corrosion properties of these metals, the bimodal grain size 7075 aviation aluminum alloys containing different ratios of coarse (100 μm in diameter) and fine (10 μm in ...

(PDF) Preparation of bimodal grain size 7075 aviation ...

In order to evaluate the corrosion properties of these metals, the bimodal grain size 7075 aviation aluminum alloys containing different ratios of coarse (100 μm in diameter) and fine (10 μm in ...

Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU, Yujie DU ...

Accepted Manuscript Full Length Article Preparation of bimodal grain size 7075 aviation aluminum alloys and their cor-rosion properties Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU, Yujie DU

Preparation of bimodal grain size 7075 aviation aluminum ...

The bimodal grain size metals show improved strength and ductility compared to traditional metals; however, their corrosion properties are unknown. In order to evaluate the corrosion properties of these metals, the bimodal grain size 7075 aviation aluminum alloys containing different ratios of coarse (100 μm in diameter) and fine (10 μm in ...

Preparation of bimodal grain size 7075 aviation aluminum ...

Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties

Improvement of microstructure and corrosion properties of ...

Sep 15, 2020  Preparation of bimodal grain size 7075 aviation Aluminum alloys and their corrosion properties Chin. J. Aeronaut. , 30 ( 2017 ) , pp. 1777 - 1788 , 10.1016/j.cja.2017.06.001 Article Download PDF View Record in Scopus Google Scholar

Failure analysis of support link leading edge AA7075-T6 ...

Apr 23, 2019  Tian Wemning, Songmen Li, Jianhua Liu, Mei Yu, Yujie Du., Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties. Chinese Society of Aeronautics and Astronautics Beihang University.

Accelerated discovery of high-strength aluminum alloys by ...

Oct 12, 2020  The bimodal grain size distribution is usually ... control for arc welding of unweldable aluminum alloy 7075. ... Yujie, D. U. Preparation of bimodal grain size 7075 aviation aluminum

Fabrication and Characterization of Bimodal Size Al2O3p ...

The effect of bimodal sized Al 2 O 3 particles reinforcement with average size of 30 – 100 nm, 3 – 5 μm and volume fraction of 1 %, 4 % on microstructure, hardness and tribological properties of 7075 Al-based composite was investigated. Experimental results exhibited fine grains, well-dispersed bimodal sized Al 2

Passive Film Properties of Bimodal Grain Size AA7075 ...

Jul 21, 2020  Jul 21, 2020  The bimodal-grain-size 7075 aluminium alloys containing varied ratios of large and small 7075 aluminium powders were prepared by spark plasma sintering (SPS). The large powder was 100 ± 15 μm in diameter and the small one was 10 ± 5 μm in diameter.

Preparation of bimodal grain size 7075 aviation aluminum ...

Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties By Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU and Yujie DU Cite

(PDF) Grain refinement in 7075 aluminum by ...

For several specimens, measurements were 50 pct, the division between large and small particles also made on L - T and T-S planes, revealing that the is about 1 #m in aluminum.16-2~ long transverse grain size (dr) is approximately equal The goal of the present investigation was to control to the longitudinal grain size (dr = dL).

Passive Film Properties of Bimodal Grain Size AA7075 ...

The bimodal-grain-size 7075 aluminium alloys containing varied ratios of large and small 7075 aluminium powders were prepared by spark plasma sintering (SPS). The large powder was 100 ± 15 μm in diameter and the small one was 10 ± 5 μm in diameter. The 7075 aluminium alloys was completely densified under the 500 °C sintering temperature and 60 MPa pressure.

On the variability in static and cyclic mechanical ...

Jun 13, 2021  On the variability in static and cyclic mechanical properties of extruded 7075-T6 aluminum alloy. Matteo Benedetti, Corresponding Author ... 6xxx, 7xxx, and 8xxx series, have been developed in the civil and military aircraft industry to achieve high static mechanical properties. ... Both alloys have a bimodal grain size with regions in which a ...

Journal of Alloys and Compounds

structure of conventional grain size material. Formation of bimodal microstructure is evident in Fig. 3 (b) after 1 pass of ECAP. The microstructure of 1 pass ECAPed specimens consists of large elongated grains with a size higher than 3mm and small equiaxed grain with a size

Fouling corrosion in aluminum heat exchangers – topic of ...

Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties 2017 / Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU, Yujie DU Academic research paper on topic "Fouling corrosion in aluminum heat exchangers"

Microstructural evolution of nanostructure 7075 aluminum ...

Al grain size and internal and Cu in Al lattice as well as grain boundaries. Another possibility strain after 40 h milling were about 27 nm and 0.48, respectively. is that these elements could disappear into the Al as very small iso- lated particles which are virtually undetectable by XRD [8,11].

CN101624671A - Large-diameter 7005 aluminum alloy round ...

The invention relates to the technical field of aluminum alloy preparation, in particular to a large-diameter 7005 aluminum alloy round ingot and a preparation method thereof. The large-diameter 7005 aluminum alloy round ingot and the preparation method thereof are provided in order to overcome the defects that the prior ingot has high crack tendency, serious component segregation and small ...

How to Adapt Grain Size Analysis of Metallic Alloys to ...

Jul 31, 2019  The average grain size of an alloy is generally expressed in terms of the grain size number, G, as indicated in the standard ASTM E112 - 13 [4]. The value of G ranges from 00 to 14 where 00 corresponds to an average grain diameter of 0.508 mm and area of 0.2581 mm 2 and 14 a diameter of 2.8 µm and area of 7.9 µm2.

Chinese Journal of Materials Research

Fig.1 Schematics of bimodal grain size distributions Fig.2 Schematics of nano-cracks in bimodal structure Fig.3 Dependence of critical crack intensity factor K IC on the angle θ made by the boundary plane and crack growth direction

Effect of ECAP Die Angles on Microstructure Mechanical ...

May 06, 2019  Also, the uniformity of grain distribution of the AZ80 Mg alloy was significantly improved with ECAP processes. Hence, the measured average grain size is about ~ 39.11, ~ 32.87, ~ 15.41, ~ 6.35 μm in diameter for 1P, 2P, 3P and 4P, respectively.

Metals Free Full-Text Alloys for Aeronautic ...

Alloy 7085 is a possible alternative to 7075 for aerospace applications due to its excellent mechanical properties (YS = 504 MPa, elongation = 14%) and better damage tolerance (44 MPa m 1/2). Zr and Mn can be added up to 1% as they refine the grain and consequently improve the mechanical properties.

EP1543174B1 - Aluminum-zinc-magnesium-copper alloy ...

EP1543174B1 EP20030808403 EP03808403A EP1543174B1 EP 1543174 B1 EP1543174 B1 EP 1543174B1 EP 20030808403 EP20030808403 EP 20030808403 EP 03808403 A EP03808403 A EP 03808403A EP 1543174 B1 EP1543174 B1 EP 1543174B1 Authority EP European Patent Office Prior art keywords extrusion accordance alloy aging hours Prior art date 2002-09-21 Legal status (The legal

LETTERS IN FRACTURE AND MJ 'ROME HANJCS

the aluminum alloy 7075-T7351. The longitudinal grain size was 49 microns, and the short transverse size was 57 microns. The long transverse size varied widely about an average of 76 microns. The yield stress was 441 441 MPa, and the ultimate strength was 520MPa. A double edge notch test specimen was used in the experiments. The width of

Preparation of bimodal grain size 7075 aviation aluminum ...

Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties By Wenming TIAN, Songmei LI, Jianhua LIU, Mei YU and Yujie DU Cite

Preparation of bimodal grain size 7075 aviation aluminum ...

Preparation of bimodal grain size 7075 aviation aluminum alloys and their corrosion properties

Measurements of Forces and Selected Surface Layer ...

Nov 10, 2019  Measurements of Forces and Selected Surface Layer Properties of AW-7075 Aluminum Alloy Used in the Aviation Industry after Abrasive Machining. ... This study also assessed the effect of brush treatment with five types of brushes of different grain size on the surface roughness of the machined holes. ... The preparation of the surface layer of ...

Journal of Alloys and Compounds

structure of conventional grain size material. Formation of bimodal microstructure is evident in Fig. 3 (b) after 1 pass of ECAP. The microstructure of 1 pass ECAPed specimens consists of large elongated grains with a size higher than 3mm and small equiaxed grain with a

Comparative study on microstructure and electrochemical ...

May 19, 2021  Al7075 alloy is a typical aviation aluminum with good mechanical properties and anodic oxidation effect. Laser engineered net shaping technology has unique advantages in the integrated forming of high-performance large aircraft structural parts. The manufacturing of 7075 aluminum alloy structural parts by laser engineered net shaping technology has become an important development

Graphene Nanoplatelets Reinforced 7075 Aluminum Alloy ...

significantly to 76 nm comparing with the grain size of the original 7075 aluminum alloy, 106nm, which confirmed that the addition of GNPs refined the grain size and optimized internal microstructure. 2. Fig. 1. X-ray diffraction analysis of 7075 aluminum alloy and graphene-reinforced composite . after sintering. 3.2. SEM analysis . 20 30 40 50 ...

CHARACTERIZATION OF PARTICULATE- REINFORCED ALUMINIUM 7075

Aluminum-based metal matrix composite (MMC) materials are used in the design of ground transportation vehicles and aircraft structures due to its light weight and high strength to weight ratio. Compared with conventional, unreinforced alloys,

Mechanical Behavior and Strengthening Mechanisms in ...

Oct 18, 2020  The flat surfaces of a 7075 aluminum (Al) alloy plate were processed by sliding friction treatment (SFT), which is a technique for surface nanocrystallization of metals and alloys. The aim of this study was to investigate the microstructural evolution, mechanical behavior and strengthening mechanisms in this SFTed precipitation-strengthened Al alloy. The SFT resulted in a gradient

(PDF) Chemical and Structural Investigation of Aluminum ...

The Scientific Bulletin of VALAHIA University – MATERIALS and MECHANICS – Nr. 5 (year 8) 2010 CHEMICAL AND STRUCTURAL INVESTIGATION OF ALUMINUM ALLOYS "2024" FOR AEROSPACE Florina Violeta ANGHELINA, Aurel GABA, Ileana Nicoleta POPESCU, Elena STOIAN, Dan UNGUREANU Valahia University of Targoviste, Romania.

Texture Evolution and Control of 2524 Aluminum Alloy and ...

The influences of cold rolling and subsequent heat treatment on the microstructure evolution of 2524 alloy were investigated using an orientation distribution function (ODF) and electron back-scattered diffraction (EBSD). A preparation method of 2524-T3 aluminum alloy with a strong Brass texture was developed, and its effect on the fatigue properties of the alloy was investigated using ...

Fabrication of Al7075 Metal Matrix Composite Through Stir ...

May 18, 2019  Fabrication of Al7075 Metal Matrix Composite Through Stir Casting Method - A Review - written by Dixon Jim Joseph. J, Logasarathy. S Mageshwaran. G. S Neveen. M published on 2019/05/18 download full article with reference data and citations

LETTERS IN FRACTURE AND MJ 'ROME HANJCS

the aluminum alloy 7075-T7351. The longitudinal grain size was 49 microns, and the short transverse size was 57 microns. The long transverse size varied widely about an average of 76 microns. The yield stress was 441 441 MPa, and the ultimate strength was 520MPa. A double edge notch test specimen was used in the experiments. The width of

On the principles of the deformation methods of aluminum ...

Jul 18, 2009  Basic principles of the optimum heterogeneity of the structure and its step by step refinement, which underlie the design of aluminum-alloys structure required for processing the fine-grained structure (with a grain size from ∼10–15 to 1 μ m) and the thermomechanical methods for its obtaining are considered. The physical nature of these principles is analyzed, their specific features for ...

ICAA13 Pittsburgh Ebook Ellibs Ebookstore

16. The grain refinement of 7050 alloy using al-5ti-1b and al-3ti-0.15c grain refiners Guo Shi-jie, Xue Guan-xia, Ma ke, Nagaumi Hiromi. 17. Grain refining potency of LaB 6 on aluminum alloy Pengting Li, Wenjie Tian, Dong Wang, Xiangfa Liu. 18. The good grain refining performance of a

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