Processing Maps for Use in Hot Working of Ductile Iron |
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Authors: | ZHAO Xin YANG Xiao-ling JING Tian-fu |
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Affiliation: | 1. The Sixth Department, Zhengzhou Institute of Aeronautics, Zhengzhou 450015, Henan, China 2. Zhengzhou Zhongxing Basic Constructions Development Co Ltd, Zhengzhou 450015, Henan, China 3. State Key Laboratory of Metastable Materials Science and Technology, Qinhuangdao 066004, Hebei, China |
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Abstract: | The hot deformation characteristics of ductile iron are studied in the temperature range of 973 to 1273K and strain rate range of 0.001 to 1 s-1 by using hot compression tests.Processing maps for hot working are developed on the basis of the variations of efficiency of power dissipation with temperature and strain rate.The results reveal that the flow stress of ductile iron is sensitive to strain rate.In the processing map under strain of 0.7,a domain is centered at 1273 K and 1 s-1,and the maximum efficien... |
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Keywords: | ductile iron processing map hot working |
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