caa a22 4500 463225279 CHVBK 20180405153225.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0678-3 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0678-3 A multi-scaled model for the fracture toughness of an aluminum alloy [Elektronische Daten] [Min Song, Kang Chen, Xiong Qi, Lan Huang] A multi-scaled model for the fracture toughness of an aluminum alloy has been developed that agrees well with the experimental data. It has been shown that fracture toughness decreases as the volume fraction of the first-class (related to microconstituents/inclusions) and second-class (related to second phase precipitates) microcracks increase, with the first-class microcracks have greater and more obvious effects. Thus, decreasing the volume fraction of the microconstituents (normally Fe and Si impurities) can decrease the volume fraction of the first-class microcracks and help improve the fracture toughness. At the same time, decreasing the volume fraction of the precipitates along the grain boundaries can also improve the fracture toughness by decreasing the volume fraction of the second-class microcracks. Springer Science+Business Media, LLC, 2007 Song Min State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut Chen Kang State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut Qi Xiong State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut Huang Lan State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4177-4182 0022-2461 42:12<4177 2007 42 10853 https://doi.org/10.1007/s10853-006-0678-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0678-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Song Min State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut NATIONALLICENCE 700 1- Chen Kang State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut NATIONALLICENCE 700 1- Qi Xiong State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut NATIONALLICENCE 700 1- Huang Lan State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, PR China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4177-4182 0022-2461 42:12<4177 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer