Effect Er and Zr Microalloying on Aluminum Alloy 7075 Microstructure Formation During Homogenization

被引：0

作者：

Leng, Jinfeng ^{[1
]}

Ren, Binghui ^{[1
]}

Zhao, Jiwei ^{[1
]}

Zhang, Yejing ^{[1
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, 336 West Rd Nan Xinzhuang, Jinan 250022, Peoples R China

来源：

METAL SCIENCE AND HEAT TREATMENT | 2021年 / 63卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

aluminum alloy 7075; homogenization; microstructure; Al-3(Er; Zr) phase; MG-CU ALLOY; AL; ZN; PRECIPITATION; ADDITIONS; RECRYSTALLIZATION; SC;

D O I：

10.1007/s11041-021-00688-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of Er and Zr microadditions on changes in the structure of aluminum alloy 7075 during homogenization is studied. Additions of Er and Zr cause grain refinement and reduce the size of coarse nonequilibrium grain-boundary eutectic. Eutectic dissolves completely during the homogenization process; long rods are transformed into spherical particles. Homogenization regime substantially affects secondary Al-3(Er, Zr) phase precipitation. Two-stage homogenization (400 degrees C, 12 h + 465 degrees C, 12 h) leads to fine and uniformly distributed particles of Al-3 (Er, Zr) with an average radius of 28.9 nm and volume fraction of 1.3 x10(-3).

引用

页码：312 / 317

页数：6

共 19 条

[1] Special Features of the Structure of Plates from an Alloy of the Al - Zn - Mg - Cu System [J].

Chikova, O. A. ;

Zamyatin, V. M. ;

Ovsyannikov, B. V. .

METAL SCIENCE AND HEAT TREATMENT, 2014, 56 (1-2) :18-20

[2] Atomic-resolution energy dispersive X-ray spectroscopy mapping of η precipitates in an Al-Mg-Zn-Cu alloy [J].

Chung, Tsai-Fu ;

Kawasaki, Masahiro ;

Wang Jenn-Yue, Phillip ;

Nishio, Koji ;

Shiojiri, Makoto ;

Li, Wei-Chih ;

Hsiao, Chien-Nan ;

Yang, Jer-Ren .

MATERIALS CHARACTERIZATION, 2020, 166

[3] Effects of graphene addition on the microstructure of 7075Al [J].

Dong, YunFan ;

Ren, BingHui ;

Wang, Kang ;

Wang, Jianrong ;

Leng, JinFeng .

MATERIALS RESEARCH EXPRESS, 2020, 7 (02)

[4] GRAIN-STRUCTURE AND QUENCH-RATE EFFECTS ON STRENGTH AND TOUGHNESS OF AA7050 AL-ZN-MG-CU-ZR ALLOY PLATE [J].

DORWARD, RC ;

BEERNTSEN, DJ .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (09) :2481-2484

[5] Effect of Zr, Er and Cr additions on microstructures and properties of Al-Zn-Mg-Cu alloys [J].

Fang, H. C. ;

Chao, H. ;

Chen, K. H. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 610 :10-16

[6] Effects of homogenization on the dissolution and precipitation behaviors of intermetallic phase for a Zr and Er containing Al-Zn-Mg-Cu alloy [J].

Huang, Yuanchun ;

Zhang, Chuanchao ;

Ma, Yunlong ;

Liu, Yu .

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, 2020, 30 (01) :47-53

[7] Effects of Er and Zr additions on precipitation and recrystallization of pure aluminum [J].

Li, Hongying ;

Gao, Zhaohe ;

Yin, Hao ;

Jiang, Haofan ;

Su, Xiongjie ;

Bin, Jie .

SCRIPTA MATERIALIA, 2013, 68 (01) :59-62

[8] Effects of Heat Treatment on Microstructure and Mechanical Properties of an ECAPed Al-Zn-Mg-Cu Alloy [J].

Li, Jinghui ;

Li, Fuguo ;

Ma, Xinkai ;

Li, Jiang ;

Liang, Shan ;

Zhang, Long .

ADVANCED ENGINEERING MATERIALS, 2018, 20 (09)

[9] ON THE ZENER DRAG [J].

NES, E ;

RYUM, N ;

HUNDERI, O .

ACTA METALLURGICA, 1985, 33 (01) :11-22

[10] Optimizing the homogenization of zirconium containing commercial aluminium alloys using a novel process model [J].

Robson, JD .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 338 (1-2) :219-229

← 1 2 →