|
|
|
| Experimental Investigations on the Temporal and Spatial Behaviors of the PLC Effect in Al--Cu Alloys |
| JIANG Huifeng; ZHANG Qingchuan; JIANG Zhenyu; WU Xiaoping |
| CAS Key Laboratory of Mechanical Behavior and Design of Materials; University of Science and Technology of China; Hefei 230027 |
|
Cite this article:
JIANG Huifeng; ZHANG Qingchuan; JIANG Zhenyu; WU Xiaoping. Experimental Investigations on the Temporal and Spatial Behaviors of the PLC Effect in Al--Cu Alloys. Acta Metall Sin, 2005, 41(7): 727-732 .
|
|
|
Abstract The temporal and spatial behaviors of the PLC (Portevin--Le
Chatlier) effect in Al--Cu alloy are systemically investigated and
analyzed. Under different applied strain rates, three types of serrated
stress-time curves are obtained respectively. And the
similarities and differences of them are
compared and interpreted qualitatively.
Correspondingly, the spatial propagating characteristics of
the three types of PLC deformation bands are observed and analyzed.
The evolutions of the propagating velocity for type A and B
bands are discussed with respect to different tensile strains
in the 3mm thick specimens. At the same tensile strain,
the power law relationship between band
propagating velocity and applied strain rate is
also obtained. Contrasting the serrated stress-time
curves with the position--time plots, the
relationship between the macroscopic spatiotemporal
behaviors is compared for the PLC effect. The influence
of specimen thickness to the spatial
correlation of PLC deformation bands is also discussed.
|
|
Received: 04 November 2004
|
|
|
[1] Portevin A, Le Chatelier F. Comp Rend Acad Sci Paris, 1923; 176: 507
[2] Bell J F. Encyclopedia of Physics, Mech Solids I, Vol. VIa/1. Berlin, 1973; Sect. 2.11:41-44, Sect. 4.31: 649
[3] Cottrell A H. Dislocations and Plastic Flow in Crystals, London: Oxford University Press, 1953
[4] Lebyodkin M, Dunin-Barkowskii L, Brechet Y, Estrin Y, Kubin L P. Acta Mater, 2000; 48: 2529
[5] Pink E, Weinhandl H. Scr Mater, 1998; 39: 1309
[6] Tian B H, Zhang Y G, Chen C L. Acta Metall Sin, 1996; 32: 249 (田宝辉,张永刚,陈昌麟．金属学报, 1996;32:249)
[7] Tian B H, Li H X, Zhang Y G, Chen C L Q. Acta Metall Sin, 1998; 34: 603 (田宝辉,李焕喜,张永刚,陈昌麒．金属学报,1998;34:603)
[8] Ziegenbein A, Hahner P, Neuhauser H. Comput Mater Sci, 2000; 19: 27
[9] Zhang Q C, Toyooka S, Meng Z B. Process SPIE, 1999; 3585
[10] Pink E, Grinberg A, Mater Sci Eng, 1981; A51: 1
[11] Chihab K, Estrin Y, Kubin L P. Scr Metall, 1987; 21: 203
[12] Jiang H F, Zhang Q G, Jiang Z Y, Zhao S M, Chen Z J, Wu X P. J Exp Mech, in press (江慧丰,张青川,蒋震宇,赵思敏,陈忠家,伍小平．实验力 学,in press)
[13] Hahner P, Ziegenbein A, Rizzi E, Neuhauser H. Phys Rev , 2002; 65B: 134/09-1
[14] Klose F B, Zigenbein A, Hagemann F, Neuhauser H, Hahner P, Abbsdi M, Zeghloul A. Mater Sci Eng, 2004; 369A: 76
[15] Miguel M C, Vespignani A, Zapperi S, Weiss J, Grasso J R. Nature, 2001; 410: 667
[16] McGormick P G. Ada Metall, 1972; 20: 351
[17] Wang Y, Srolovitz J, Rickman J M, Lesar R. Acta Mater, 2000; 48: 2163
[18] Kubin L P, Estrin Y. Acta Metall Mater, 1990; 38: 697 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
