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《Acta Physica Sinica》 1987-07
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A STUDY OF CREEP RUPTURE IN COPPER BY MEASUREMENTS OF INTERNAL FRICTION

KONG QING-PING DAI YONG (Institute of Solid State Physics, Academia Sinica, Hefei)  
On the basis of our previous work [1] on commercially pure aluminum, the change of internal friction peak of grain bound- (Ke peak) in commercially pure copper has been studied in the course of creep. Creep experiments were conducted under different conditions: (a) high temperature and low stress; (b) medium temperature and medium stress; (c) low temperature and high stress; which lead to intergranular, mixed type and transcrystalline rupture respective~7 y. From the changes of grain boundary peak under different creep conditions, it can be deduced that the strength of grain boundaries is changed little during creep at high temperature and low stress; somewhat increased at medium temperature and medium stress; and considerably increased at low temperature and high stress. The present work indicates that the strength of grain boundaries is changeable during creep. The extent of strengthening of grain boundaries is different under different creep conditions, which is believed to be an important roie to lead to different type of creep rupture. This provides a modification and complement of the idea of "equicohesive temperature".
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【References】
Chinese Journal Full-text Database 5 Hits
1 KONG Qingping;DAI Yong(Institute of Solid State Physics,Academia Sinica,Hefei);THE ROLE OF GRAIN BOUNDARIES IN CREEP AND CREEP RUPTURE OF METALS[J];;1988-02
2 DAI Yong LIU Shaomin KONG Qingping (Institute of Solid State Physics,Academia Sinica);CHANGES OF GRAIN BOUNDARY INTERNAL FRICTION PEAK OF PURE COPPER IN THE COURSE OF CONSTANT RATE TENSILE DEFORMATION[J];;1991-01
3 Wang Bosheng, Sun Fuyu, Wu Baorong, Meng Qingen Central Iron & Steel Research Institute;DESIGN AND APPLICATION OF AN INVERTED PENDULUM WITH DEFORMATION AND LOADING SYSTEMS[J];Journal of Iron and Steel Research;1991-04
4 Wu Xi-jun Institute of Solid State Physics, Academia Sinica, Hefei;GRAIN BOUNDARY STRUCTURE AND ITS EFFECT ON MECHANICAL PROPERTIES OF POLYCRYSTALLINEMATERIALS (II)[J];Advances In Mechanics;1990-02
5 KONG Qing-Ping~ JIANG Wei-Bin SHI Yun CUI Ping FANG Qian-Feng (Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China);Recent studies of grain boundary internal friction[J];Physics;2007-01
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Liang Yingxian (Department of physics, Chongqing Teachers Training Academy, Chongqing 402160 );The Physical Model of Symmetry and Incompleteness[J];Journal of Chongqing University of Posts and Telecommunications;1998-04
2 YANG Hui1a,SUN Jian2,ZHAO Wei-lin1a,LI Tao1a,SUN Zhi-fu1b(1.a.School of Materials Science & Engineering;b.Key Laboratory of Ministry of Education for Automobile Parts Manufacture and Test Techniques,Chongqing University of Technology,Chongqing 400050,China;2.Chongqing Electromechanical Vocational College,Chongqing,400050,China);Vibration Damping Capacity and Prospect of Magnesium Alloy as Hand Tools Parts[J];Journal of Chongqing Institute of Technology(Natural Science);2009-05
3 KONG Qingping;DAI Yong(Institute of Solid State Physics,Academia Sinica,Hefei);THE ROLE OF GRAIN BOUNDARIES IN CREEP AND CREEP RUPTURE OF METALS[J];;1988-02
4 Wang Bosheng, Sun Fuyu, Wu Baorong, Meng Qingen Central Iron & Steel Research Institute;DESIGN AND APPLICATION OF AN INVERTED PENDULUM WITH DEFORMATION AND LOADING SYSTEMS[J];Journal of Iron and Steel Research;1991-04
5 Wang Bosheng, Sun Puyu, Mong Qingen, Oao Zhengying Central Iron & Steel Research Institute, MMI;THE METHOD OF INTERNAL FRICTION FOR INVESTIGATION OF DISLOCATION LINK LENGTH DISTRIBUTION IN DEFORMED METAL[J];Journal of Iron and Steel Research;1993-02
6 ZHANG Xue-cheng,WANG Peng(College of Mechanical Science and Engineering,Jilin University,Changchun,Jilin 130025,China);A Nice Lever Amplification Force Generating Device with Changing the Lever Ratio[J];Acta Metrologica Sinica;2009-01
7 Deng Huaming Chen Shuchuan (Dept of Materials Science, Shanghai Jiao Tong University, Shanghai 200030);General Review of Present Research on Mn-Based High Damping Alloys[J];METALLIC FUNCTIONAL MATERIALS;2000-02
8 ZHANG Jin TAO Yanling SUN Zhifu FU Lijuan SHI Quan ( School of Material Science and Engineering, Chongqing Institute of Technology, Chongqing 400050; Material Science and Engineering Center, Chemical Industry Press, Beijing 100029);VIBRATION DAMPING CAPACITY OF AZ91D MAGNESIUM ALLOYS[J];Chinese Journal of Mechanical Engineering;2006-10
9 KONG QING-PING WANG XIANG NI QUN-HUI (Institute of Solid State Physics, Academia Sinica, Hefei);OBSERVATIONS ON HIGH TEMPERATURE CREEP PROCESSES OF A NICKEL BASE ALLOY BY TRANSMISSION ELECTRON MICROSCOPY[J];Acta Physica Sinica;1985-07
10 KONG QING-PING WANG XIANG ZHOU HAO NI QUN-HUI (Institute of Solid State Physics, Academia Sinica, Hefei, China);ELECTRON MICROSCOPY STUDIES ON THE INTERACTION BETWEEN CREEP AND FATIGUE[J];Acta Physica Sinica;1986-08
【Co-references】
Chinese Journal Full-text Database 3 Hits
1 WANG YEH-NING, Hsu TSIH-ZAN, HAN YEH-LUNG (Department of Physics, University of Nanjing);GRAIN BOUNDARY RELAXATION OF MOLYBDENUM AND THE MECHANISM OF THE EMBRITTLING EFFECT OF INTERSTITIAL IMPURITY ADDITIONS[J];Acta Physica Sinica;1966-06
2 LI YONG KONG QING-PING (Institute of Solid State Physics, Academia Sinica, Hefei);THE MECHANISM OF HIGH TEMPERATURE CREEP ASSOCIATED WITH THE CLIMB OF EXTENDED DISLOCATIONS[J];Acta Physica Sinica;1989-01
3 SHAN BING XU WEN KONG QING-PING Institute of Solid State Physics, Academia Sinica, Hefei;INTERNAL FRICTION OF MONO-AND POLY-CRYSTAL PURE ALUMINUM DURING CREEP TESTS[J];Acta Physica Sinica;1989-08
【Secondary References】
Chinese Journal Full-text Database 4 Hits
1 Wang Bosheng, Sun Puyu, Mong Qingen, Oao Zhengying Central Iron & Steel Research Institute, MMI;THE METHOD OF INTERNAL FRICTION FOR INVESTIGATION OF DISLOCATION LINK LENGTH DISTRIBUTION IN DEFORMED METAL[J];Journal of Iron and Steel Research;1993-02
2 MAO Zhengdong1,ZHOU Jianbo2,XIE Xishan1,CHEN Yuenan3,LIU Shengguo3(1. University of Science and Technology Beijing, Beijing 100083, China;2. Tianjin ProfessionalCollege, Tianjin 300402, China;3. Daye Special Steel Co Ltd, Huangshi 435001, China);Investigation on Creep Rupture Mechanism of Superalloy GH871[J];Journal of Iron and Steel Research;2003-03
3 LI Yong, LI Shouxin, LI GuangyiShenyang National Laboratory for Materials Science, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016Correspondent: LI Yong, Tel: (024)23843531-55225, E-mail: yli@imr.ac.cnSupported by National Na;THE OBSERVATION OF SLIP MORPHOLOGY AND DISLOCATION STRUCTURE IN A FATIGUED COPPER BICRYSTAL WITH COMPONENTS ROTATING ALONG THE GRAIN BOUNDARY[J];Acta Metallrugica Sinica;2002-08
4 WAN Di-qing1,YANG Gen-cang2,WANG Jing-cheng2(1.School of Mechatronic Engineering,East China Jiaotong University,Nanchang,330013,China;2.State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China);Temperature Dependent Internal Friction Characteristic and Solute Effect of High Damping Magnesium Alloys[J];Foundry Technology;2009-07
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