BEHAVIOUR OF AI-SINGLE CRYSTAL DURING EARLY STAGE OF PUSH-PULL FATIGUE

Acta Metall Sin

1996, Vol. 32

Issue (5): 510-515 DOI:

Current Issue | Archive | Adv Search

BEHAVIOUR OF AI-SINGLE CRYSTAL DURING EARLY STAGE OF PUSH-PULL FATIGUE

LIU Guodong; ZHU Zhengang; WANG Jing (Institute of Solid State Physics; ChineseAcademy of Sciences; Hefei 230031)(Manuscript received 1995-08-22; in revised form 1995-12-14)

Cite this article:

LIU Guodong; ZHU Zhengang; WANG Jing (Institute of Solid State Physics; ChineseAcademy of Sciences; Hefei 230031)(Manuscript received 1995-08-22; in revised form 1995-12-14). BEHAVIOUR OF AI-SINGLE CRYSTAL DURING EARLY STAGE OF PUSH-PULL FATIGUE. Acta Metall Sin, 1996, 32(5): 510-515.

Download:

PDF(484KB)
Export: BibTeX | EndNote (RIS)

Abstract Push-pull fatigue deformation of [110] and [100] Al-single crystals was performed at room temperature at strain amplitudes in the range (1 to 6) × 10~(-4). Variation of the stress σ, internal friction Q~(-1), and ultrasonic attenuation △α vs cycle number N under various strain amplitudes were measured systematically, and the relative dislocation configuration at different stages of fatigue was observed by TEM. The results indicate that the σ-N curve goes through a hardening -softening-secondary hardening sequence during push-pull fatigue in the two kinds of Al-single crystals. The change in the internal friction vs cycle N is synchronous and reverse with that of the stress. The ultrasonic attenuation △α increases with N at the beginning, after reaching a hump, decreases gradually. The variation of this three parameter is controled by the mechanism of interaction between dislocation segments.

Key words: Al-single crystal push-pull fatigue ultrasonic attenuation dislocation configuration

Received: 18 May 1996

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors

URL:

https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1996/V32/I5/510

1SureshS著,王中光译．材料的疲劳．北京:国防工业出版社,1993:302 VincentA,FougeresR．MaterSciForum,1993;119-121:693 JinNY,WinterAT．ActaMetall,1984;32:9894 VorrenO,RyumN．ActaMetall,1987;35:8555 朱震刚,周星,费广涛．仪器仪表学报,1988;9:3966GranatoA,LuckeK．J ApplPhys,1956;27:583

[1]	Kan SONG,Kai YU,Xin LIN,Jing CHEN,Haiou YANG,Weidong HUANG. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HEAT TREATMENT LASER SOLID FORMING SUPERALLOY INCONEL 718[J]. 金属学报, 2015, 51(8): 935-942.
[2]	PAN Kunming, ZHANG Laiqi, WANG Meng, LIN Junpin. BRITTLE－TO－DUCTILE TRANSITION FOR T2 IN THE Mo－Si－B SYSTEM[J]. 金属学报, 2013, 49(11): 1392-1398.
[3]	DING Zhi ZHANG Jun WANG Changshuai SU Haijun LIU Lin FU Hengzhi. DISLOCATION CONFIGURATION IN DZ125 Ni-BASED SUPERALLOY AFTER HIGH TEMPERATURE STRESS RUPTURE[J]. 金属学报, 2011, 47(1): 47-52.
[4]	GUO Xiaolong; SHEN Yongfeng; LU Lei; LI Shouxin. EFFECTS OF TWINS ON THE FATIGUE BEHAVIOR OFPOLYCRYSTALLINE COPPER[J]. 金属学报, 2004, 40(12): 1281-1284 .
[5]	XIA Yuebo;ZHANG Tianyi;FEI Guangtao;ZHOU Xing State Key Laboratory for Fatigue and Failure of Materials; Institute of Metal Research; Academia Sinica; Shenyang Laboratory of Internal Friction and Defects in Solids; Institute of Solid State Physics; Academia Sinica; Hefei Correspondent associate professor; Insttitute of Metal Research; Academia Sinica; Shenyang 110015. EFFECT OF SLIP ORIENTATION ON STRESS RESPONSE, INTERNAL FRICTION AND ULTRASONIC ATTENUATION DURING CYCLIC DEFORMATION IN Al SINGLE CRYSTALS[J]. 金属学报, 1992, 28(6): 33-39.
[6]	CHAI Huifen;WANG Liqin;C. LAIRD Xi'an Jiaotong University University of Pennsylvania; U. S. A. LOW ENERGY DISLOCATION STRUCTURES DUE TO FATIGUE SOFTENING[J]. 金属学报, 1989, 25(3): 45-50.
[7]	YAO Kefu;TANG Naiyong;CHEN Nanping Tsinghua University. IN SITU OBSERVATION OF CRACK TIP DEFORMATION IN A DUPLEX STAINLESS STEEL[J]. 金属学报, 1989, 25(3): 57-62.
[8]	JIN Nengyun Shanghai Jiaotong University. CYCLIC DEFORMATION OF FCC CRYSTALS AND ITS DISLOCATION INTERACTION MODEL Ⅰ. CYCLIC DEFORMATION OF COPPER SINGIE CRYSTALS[J]. 金属学报, 1988, 24(5): 299-310.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed