ANELASTIC RELAXATIONS ASSOCIATED WITH LOCAL DISORDERING AT GRAIN BOUNDARIES

Abstract

Abstract: Internal friction and micro-creep measurements were performed with high-purity aluminium bamboo-crystal specimens.The relaxation strength was found to decrease with the decrease of temperature and became zero at about 0.4 T_m(T_m is the melting temperature).This re- flects the occurrence of local disordering in the bamboo boundary region at this temperature. This result conforms to the picture of grain-boundary disordering constructed by atomic simulation studies.

Key words: Grain boundary disordering, internal friction, micro-creep, high-purity aluminium

CHENG bolin GE Tingsui (T.S.Ke) Laboratory of Internal Friction and Defects in Solids,Institute of Solid State Physics,Academia Sinica,Hefei,China Professor Laboratory of Internal Friction and Defects in Solids,Institute of Solid State Physics,Academia Sinica,Hefei,230031. ANELASTIC RELAXATIONS ASSOCIATED WITH LOCAL DISORDERING AT GRAIN BOUNDARIES[J]. Acta Metallurgica Sinica (English Letters), 1991, 4(2): 79-85.

[1]	Shuwei LIU, Xiaofeng HU, Haichang JIANG, Xiuyan LI, Lijian RONG. Internal friction peak associated with dislocations in Mg-0.6%Zr alloy [J]. Acta Metallurgica Sinica (English Letters), 2011, 24(5): 335-342.
[2]	Wenmao HUANG,Haihong ZHAN,Lingyan XU,Zhengbing XU,Jianmin ZENG. Investigation on microstructure and internal friction for low density TiB₂/ZL114 composites [J]. Acta Metallurgica Sinica (English Letters), 2009, 22(3): 211-218.
[3]	J. Gö, ken, M. Maikranz-Valentin, K. Steinhoff. Internal Friction of 51CrV4 Shaft Influenced by Thermo-Mechanical Coupling [J]. Acta Metallurgica Sinica (English Letters), 2008, 21(2): 79-84 .
[4]	Y.Y.Che; G. Y.Zeng; Y. C. Xu and J. W,Ji(College of Science, Northeastern University, Shenyang 110006, China). SNOEK-Ke-K■STER PEAK OF INTERNAL FRICTION IN Fe-P-N ALLOYS [J]. Acta Metallurgica Sinica (English Letters), 1998, 11(1): 12-18.
[5]	Y.L. Chen(Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China). INTERNAL FRICTION AND ELASTIC CONSTANTS OF Pd-B-H ALLOYS [J]. Acta Metallurgica Sinica (English Letters), 1998, 11(1): 51-55.
[6]	SHUI Jiapeng;CHENG Lifang;LIU Junmin;CHU Zhaoqin Institute of Solid State Physics,Academia Sinica,Hefei,China associate professor,Institute of Solid State Physics,Academia Sinica Hefei 230031,China. STABILITY OF NANOCRYSTALLINE Ni-P RIBBONS [J]. Acta Metallurgica Sinica (English Letters), 1993, 6(8): 108-111.
[7]	XIA Yuebo ZHANG Tianyi State Key Laboratory for Fatigue and Fracture of Materials,Institute of Metal Research,Academia Sinica,Shenyang,ChinaFEI Guangtao ZHOU Xing Laboratory of Internal Friction and Defects in Solids,Institute of Solid State Physics,Academia Sinica,Hefei,China Associate Professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China. EFFECT OF SLIP ORIENTATION ON STRESS RESPONSE,INTERNAL FRICTION AND ULTRASONIC ATTENUATION DURING CYCLIC DEFORMATION IN Al SINGLE CRYSTALS [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(6): 471-476.
[8]	JI Jingwen WEI Quanjin ZHANG Guofu LAI Zuhan Northeast University of Technology,Shenyang,ChinaCHEN Tingguo Shanghai Institute of Metallurgy,Academia Sinica,Shanghai,China Associate Professor,Department of Physics,Northeast University of Technology,Shenyang 110006,China. EFFECT OF La ON SNOEK-KE-K■STER PEAK IN Fe-P-N ALLOYS [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(6): 414-418.
[9]	JI Jingwen LAI Zuhan WU Yuqin ZHANG Guofu Northeast University of Technology,Shenyang,ChinaLI Guangyi Institute of Metal Research,Academia Sinica,Shenyang,China. EFFECT OF RARE EARTH ON MEDIUM-TEMPERATURE INTERNAL FRICTION OF COMMERCIALLY PURE IRON [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(3): 158-165.
[10]	TAN Qi University of Science and Technology of China,Hefei,China. EFFECT OF BIAS STRESS ON NON-LINEAR INTERNAL FRICTION OF Al-Mg ALLOY [J]. Acta Metallurgica Sinica (English Letters), 1992, 5(3): 166-171.
[11]	JI Jingwen WEI Quanjin GENG Dianqi WU Yuqin Northeast University of Technology,Shenyang,China Professor,Dept.of Physics,Northeast University of Technology,Shenyang 110006,China. INTERNAL FRICTION OF GRAIN BOUNDARIES IN Fe-P AND Fe-P-La ALLOYS CONTAINING TRACE Cu [J]. Acta Metallurgica Sinica (English Letters), 1990, 3(4): 243-248.
[12]	ZHU Xianfang ZHANG Lide Institute of Solid State Physics,Academia Sinica,Hefei,China Research Assistant,Institute of Solid State Physics,Academia Sinica,Hefei,China. CHARACTERISTICS OF INTERNAL FRICTION AND MODULUS ASSOCIATED WITH NON-EQUILIBRIUM DIFFUSION-TYPE PHASE TRANSFORMATION IN EUTECTOID Al-Zn ALLOY [J]. Acta Metallurgica Sinica (English Letters), 1989, 2(5): 315-319.
[13]	YI Huchun GE Tingsui (T.S.Ke) Institute of Solid State Physics,Academia Sinica,Hefei,China GE Tingsui,Professor,Laboratory of Internal Friction and Defects in Solids,Institute of Solid State Physics,Academia Sinica,Hefei,China. EFFECT OF AGING ON INTERNAL FRICTION,ELASTIC MODULUS AND MECHANICAL PROPERTIES OF TERNARY Mn-Cu-Al ALLOYS [J]. Acta Metallurgica Sinica (English Letters), 1989, 2(2): 100-107.

ANELASTIC RELAXATIONS ASSOCIATED WITH LOCAL DISORDERING AT GRAIN BOUNDARIES

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 13

Recommended Articles

Metrics

Comments