TY - JOUR
T1 - Evaluating structural integrity of cast Al-7%Si-Mg alloys via work hardening characteristics I. Concept of target properties
AU - Tiryakioglu, Murat
AU - Campbell, John
AU - Staley, JT
PY - 2004/3/15
Y1 - 2004/3/15
N2 - We analyzed the tensile behavior of Al-7 wt.% Si-Mg alloys with three different Mg contents (0.20, 0.40, and 0.60 wt.%). We found that the Kocks-Mecking (KM) model adequately expresses the Stage III work hardening of these alloys. Specimens with major structural discontinuities fractured before the completion of Stage III hardening. We developed a method to predict the end of Stage III work hardening of specimens that failed prematurely due to the presence of structural discontinuities. Based on this concept, we introduce target stress and elongation which can be used as quality assessment criteria to evaluate the structural integrity of castings. (C) 2003 Elsevier B.V. All rights reserved.
AB - We analyzed the tensile behavior of Al-7 wt.% Si-Mg alloys with three different Mg contents (0.20, 0.40, and 0.60 wt.%). We found that the Kocks-Mecking (KM) model adequately expresses the Stage III work hardening of these alloys. Specimens with major structural discontinuities fractured before the completion of Stage III hardening. We developed a method to predict the end of Stage III work hardening of specimens that failed prematurely due to the presence of structural discontinuities. Based on this concept, we introduce target stress and elongation which can be used as quality assessment criteria to evaluate the structural integrity of castings. (C) 2003 Elsevier B.V. All rights reserved.
UR - http://www.scopus.com/inward/record.url?scp=1542287455&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2003.10.311
DO - 10.1016/j.msea.2003.10.311
M3 - Article
VL - A368
SP - 205
EP - 211
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
ER -