Microstructures of DC cast light alloys under the influence of intensive melt shearing

被引：13

作者：

Zuo, Y. B. ^{[1
]}

Jiang, B. ^{[1
]}

Fan, Z. ^{[1
]}

机构：

[1] Brunel Univ, BCAST, EPSRC Ctr LiME, Uxbridge UB8 3PH, Middx, England

来源：

LIGHT METALS TECHNOLOGY V | 2011年 / 690卷

基金：

英国工程与自然科学研究理事会;

关键词：

Light alloys; Intensive melt shearing; DC casting; Microstructure; Grain refinement; ENHANCED HETEROGENEOUS NUCLEATION; FREQUENCY ELECTROMAGNETIC-FIELD; STRENGTH ALUMINUM-ALLOY; GRAIN-REFINEMENT; MG;

D O I：

10.4028/www.scientific.net/MSF.690.137

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new direct chill (DC) casting process, melt conditioned DC (MC-DC) process has been developed for production of high quality ingots and billets of light alloys. In the MC-DC casting process, intensive melt shearing provided by a newly developed rotor-stator unit is used to control the solidification process during the DC casting with a conventional DC caster. Experimental results of DC casting of Al- and Mg-alloys with and without intensive melt shearing have demonstrated that the MC-DC casting process can produce light alloy billets with significantly refined microstructure and substantially reduced cast defects. The effect of intensive melt shearing on grain refinement has been mainly attributed to the enhanced heterogeneous nucleation on well dispersed oxides occurring naturally in the alloy melt.

引用

页码：137 / 140

页数：4

共 50 条

[21] Influence of Intensive Melt Shearing on the Microstructure and Mechanical Properties of an Al-Mg Alloy with High Added Impurity Content
S. Kumar
N. Hari Babu
G. M. Scamans
Z. Fan
[J]. Metallurgical and Materials Transactions A, 2011, 42 : 3141 - 3149
[22] Influence of Intensive Melt Shearing on the Microstructure and Mechanical Properties of an Al-Mg Alloy with High Added Impurity Content
Kumar, S.
Babu, N. Hari
Scamans, G. M.
Fan, Z.
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2011, 42A (10): : 3141 - 3149
[23] Influence of microstructures on the crack growth behavior of small fatigue cracks in squeeze-cast aluminum alloys
Kawagoishi, Norio
Nisitani, Hironobu
Toyohiro, Toshinobu
Yamamoto, Naomichi
Tsuno, Tohru
[J]. Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1994, 60 (570): : 358 - 363
[24] Microstructures and mechanical properties of Co-based surfacing alloys under DC transverse magnetic field
Liu, Changjun
Liu, Zhengjun
Su, Ming
Su, Yunhai
[J]. Hanjie Xuebao/Transactions of the China Welding Institution, 2011, 32 (03): : 53 - 56
[25] The control of as-cast structure of 2024 aluminum alloy with intensive melt shearing and its effect on microstructure and mechanical properties after T4 treatment
Wang, Rui
Zhu, Qingfeng
Zuo, Yubo
Cheng, Long
Wang, Jinchuan
[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 24 : 3179 - 3193
[26] TEM study of the as-cast and aged microstructures of Mg-Al-Zn alloys and the influence of Zn content on precipitation
Shepeleva, L
Manov, E
Bamberger, M
[J]. MAGNESIUM TECHNOLOGY 2001, 2001, : 189 - 194
[27] Prediction of as-cast grain size of inoculated aluminum alloys melt solidified under non-isothermal conditions
Du, Qiang
Li, Yanjun
[J]. MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES, 2015, 84
[28] MICROSTRUCTURES OF MELT-ATOMIZED AND RAPIDLY SOLIDIFIED EUTECTIC FE-C AND NI-CR MARTENSITIC WHITE CAST-IRON ALLOYS
FROMMEYER, G
[J]. ZEITSCHRIFT FUR METALLKUNDE, 1985, 76 (10): : 662 - 668
[29] Microstructures of worn surface and wear debris of as-cast Al-17Si-xLa alloys under unlubricated conditions
Yi, HK
Zhang, D
Fan, TX
Lü, WJ
[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2003, 13 (03) : 564 - 567
[30] Microstructures of worn surface and wear debris of as-cast Al-17Si-xLa alloys under unlubricated conditions
易宏坤
张荻
范同祥
吕维洁
[J]. Transactions of Nonferrous Metals Society of China, 2003, (03) : 564 - 567

← 1 2 3 4 5 →