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《Forging & Stamping Technology》 2010-01
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Analysis and prevention of forging cracks

HE Wen-wu,GUO Hui-guang,LIU Jian-sheng(School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)  
The main experimental research methods of forging cracks,such as hot-tension test,hot-compression test,hot twisting,bending and strain induced crack opening test were presented.The causes of crack generation for different materials were discussed on the basis of microstructure near crack and thermodynamics theory.The results show that forging cracks are not only decided by inner reason of material but also related to mechanical property,microstructure and product size.The preventive principle of forging cracks,internal cracks healing mechanism and usage situation were clarified.
【Fund】: 国家自然科学基金资助项目(50675146);; 国家十一五科学支撑计划项目(2007BAF02B07)
【CateGory Index】: TG316.192
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