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Acknowledgements This work is supported by Science and Technology Program Foundation of Education Department of Shandong Province under Grant J07WA08 and Natural Science Foundation of Shandong Jianzhu University under Grant XN080101.
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Acknowledgements This work was financially supported by Natural Science Fund (51075193) and Natural Science Fund (50735001).
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Introduction Ni3Al-base alloy (IC) is one of the important high temperature engineering materials [1].
The fusion organization of weld seam in the fine grain materials is smaller than it in coarse grain.
Figure 2 shows the sensitivity of cracking for the coarse grain and fine grain materials.
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Introduction In order to meet the strict demand to the foundation bed of high-speed railway, the materials of group A and B or the treated soil for base of foundation bed must be used based on The Design Standard for the High-speed Railway.
According to the completed survey results for the materials along Jing(Beijing)-Hu(Shanghai) high-speed railway, the materials of group A are lack and the materials of group B are also less.
The extent of using for the materials of subgrade is obviousely.
It is to say that some materials of group C and D should be treated to be used.
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Dean Deng , Hidekazu Murakawa Influence of transformation induced plasticity on simulated results of welding residual stress in low temperature transformation steel Computational Materials Science 78 (2013) 55–62 [8].
Sattari-Far Study on welding temperature distribution in thin welded plates through experimental measurements and finite element simulation Journal of Materials Processing Technology 211 (2011) 688–694

Materials and Methods 2.1 Pyrethrum extract Pyrethrum extract was obtained from Honghe-senju Biological Co.
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The models of concrete materials are used solid65 element simulation, the model used in discrete reinforcement, reinforced with link8 element simulation.
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Acknowledgements This work was financially supported by the Communications Science & Technology Project of Inner Mongolia Autonomous Region (NJ-2012-18).
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