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| 1 | Tensile properties and fracture behavior of Ti_2AlNb based alloys at room temperature显示文摘The tensile mechanical properties and fracture behaviors of Ti 22Al 20Nb 7Ta alloys were studied at room temperature. Three typical microstructures of Ti 2AlNb based alloys were obtained by combination of thermal mechanical processing and heat treat ment. They are: 1) lath mixture of O + B 2 with remaining β grain boundaries and α 2 phase; 2) equiaxed O phase in B 2 matrix; 3) fine lath mixture of O + B 2 without remaining β grain boundaries. It is shown that the microstructure obviously affects the tensile properties of Ti 2AlNb based alloys. The microstructure of fine lath mixture of O + B 2 without remaining β grain boundaries has good combination of yield stress and ductility, while the microstructure with lath mixture of O + B 2 with remaining β grain boundaries and α 2 phase has low yield stress and elongation. The fracture mode was also controlled by the microstructure of Ti 2AlNb based alloys. By means of SEM, it was found that the dominated fracture mode of microstructure with lath mixture of O + B 2 with remained β grain boundary and α 2 phase was intergranular, and the fracture mode of the other two microstructures was mainly transgranular. | PENG Ji hua(彭继华) 1, 2 , MAO Yong(毛 勇) 2, LI Shi qiong(李世琼) 2, SUN Xun fang(孙训方) 2 1. Department of Engineering Mechanics, Southwest Jiaotong University, Chengdu 610031, P.R.China 2. Division of Super Alloys, Central Iron and S | 2000 | 中国有色金属学会会刊:英文版2000，10，3： | 6 |
| 2 | Distraction osteogenesis in the treatment of dentofacial deformities显示文摘 | Super S | 2009 | Alpha Omegan2009，102，2： | 1 |
| 3 | Association of low levels of man- nan -binding protein with a common defect of opsonisation 显示文摘 | Super M Thiel S Lu J | 1989 | Lancet ( L ndon England)1989，1989，： | 1 |
| 4 | Edge co-occurance in natural images predicts contour grouping performance显示文摘 | Geisler W S Perry J S Super B J | 2001 | Vision Research2001，41，6： | 1 |
| 5 | Scalable gene synthesis by selective amplification of DNA pools from high-fidelity microchips显示文摘 | Kosuri S Eroshenko N LeProust E M Super M Way J Li J B Church G M | | 0，，： | 1 |
| 6 | TGF-beta(1)geno-type and accelerated decline in lung function of patients with cystic fibrosis显示文摘 | Arkwright PD Laurie S Super M | 2000 | Thorax2000，55，6： | 1 |
| 7 | Microvolt T-wave alternans and electrophysiologic testing predict distinct arrhythmia substrates: Implications for identifying patients at risk for sudden cardiac death显示文摘 | AMIT G ROSENBAUM D S SUPER D M | 2010 | Heart Rhythm2010，7，： | 1 |
| 8 | Heart rate variability in healthy newborn infants显示文摘 | MEHTA S K SUPER D M CONNUCK D | 2002 | Am J Cardiol2002，89，1： | 1 |
| 9 | Edge co-occurence in natural images predicts contour grouping performance显示文摘 | Geisler W S Perry J S Super B J | 2001 | Vision Research2001，41，6： | 1 |
| 10 | TGF -βgenotype and accelerated decline in lung function of patients with cystic fibrosis 显示文摘 | Arkwright PD Laurie S Super M | 2000 | Thorax2000，55，： | 1 |
| 11 | Mixed alkali systems: Dietzel's theorem, X-ray structure, hygroscopicity, and 29-Si MAS NMR of NaRbSi2O5 and NaCsSi2O5 显示文摘 | de Jong B H W S Super H T J Frijhoff R M Spek A L Nachtegaal G | 2000 | Z Kristallogr2000，215，7： | 1 |
| 12 | TGF-β genotype and accelerated decline in lung function of patients with cystic fibrosis显示文摘 | Arkwright PD Laurie S Super M | 2000 | Thorax2000，55，： | 1 |
| 13 | Fine mapping of the Friend retrovirus resistance gene,Rfv3,on mouse chromosome 15显示文摘 | Hasenkrug KJ Simmons S | 1999 | J Virol1999，73，： | 1 |
| 14 | TGF-beta( 1 ) genotype and accelerated decline in lung function of patients with cystic fibrosis 显示文摘 | Arkwright PD Laurie S Super M | 2000 | Thorax2000，55，6： | 1 |
| 15 | TGF-β1 genotype and accelerated decline in lung function of patients with cystic fibrosis 显示文摘 | Arkwright PD Laurie S Super M | 2000 | Thorax2000，55，： | 1 |
| 16 | Distinct and overlaping functions of allelic forms of human mannose-binding protein显示文摘 | Super M Gilliesn SD Foley S | 1992 | Nat Genet1992，2，1： | 1 |
| 17 | Enhancing life prospects of socially vulnerable youth through sport participation: a mixed methods study 显示文摘 | Super S Hermens N Verkooijen K | 2014 | BMC public health2014，14，1： | 1 |
| 18 | T-wave alternans and electrophysiologic testing predict distinct arrhythmia substrates:Implications for identifying patients at risk for sudden cardiac death显示文摘 | AMIT G ROSENBAUM D S SUPER D M | 2010 | Heart Rhythm2010，23，： | 1 |
| 19 | TGF-βgenotype and accelerated decline in lung function of patients with cystic fibrosis 显示文摘 | Arkwright P D Laurie S Super M | 2000 | Thorax2000，55，： | 1 |
| 20 | Edge Co-occurrence in Natural Images Predicts Contour Grouping Performance 显示文摘 | Geisler W S Perry J S Super B J | 2001 | Vision Research2001，41，6： | 1 |
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