HOT TEARING SUSCEPTIBILITY IN DC CAST ALUMINUM ALLOYS

被引：0
|
作者：
Jamaly, N. [1 ]
Phillion, A. B. [1 ]
Cockcroft, S. L. [2 ]
Drezet, J. -M. [3 ]
机构：
[1] Univ British Columbia, Okanagan Sch Engn, Kelowna, BC, Canada
[2] Univ British Columbia, Dept Mat Engn, Vancouver, BC, Canada
[3] Ecole Polytechn Federale Lausanne, LSMX, Lausanne, Switzerland
来源：
TMS 2012 141ST ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS PROPERTIES, CHARACTERIZATION, AND MODELING | 2012年
关键词：
Semi-solid constitutive behavior; microstructure; Direct Chill Casting; Aluminum Alloys; Hot Tearing; START-UP PHASE; THERMAL-STRESSES; BEHAVIOR; AA5182; MODEL; SOLIDIFICATION; INGOT;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Hot tearing and loss of dimensional stability are two key defects related to industrial aluminum alloy casting processes. In order to investigate their occurrence, a new semi-solid constitutive law [20] for AA5182 that takes into account cooling rate, grain size and porosity has been implemented into a Direct Chill casting process model for round billets. The semi-solid stress-strain predictions provided by this new constitutive law as well as the effects of processing parameters were then examined to demonstrate the relationships between defect formation, microstructure, and processing variables.
引用
收藏
页码：259 / 266
页数：8
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