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): 779-785. [12] SELLARS C M, TEGART W J M. On the mechanism of hot deformation [J]. Acta Metall, 1996, 14(9): 1136-1138. [13] CHO S H, KANG K B, JONAS J J. The dynamic static and metadynamic... Effects of contents of Nb and C on hot deformation behaviors of high Nb X80 pipeline steels QIAO Gui-ying(乔桂英)1, XIAO Fu-ren(肖福仁)2, ZHANG Xiao-bing(张晓兵)3, CAO Ya-bin(曹雅斌)2, LIAO......
characteristic of which is restrained, because existing plastic deformation has absorbed much elastic deformation energy [12]. The failure extent is larger than the pre-peak test results, and mostly rock..., unloading failure decreases the carrying capacity to reach axial stress of rock specimen causing yielding damage. Therefore, the deformation curves under two strain paths are greatly different. Fig. 5......
; Uplift behavior and load transfer mechanism... of pile foundations. A field-scale test program was conducted to study the uplift behavior and load transfer mechanism of PHC piles in soft soil. The pullout load tests were divided into two groups......
, increased from 0 to around 0.1 in all alloys at 300 ℃. This indicates the controlling mechanism of deformation largely varies at and above 300 ?C, accompanied by a large decrease in yield stress... and the dislocations. This leads to the increase in yield stress as number of cycles rose. These differences in deformation mechanism between tension and compression are responsible for the appearance......
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, and the deformation activation energy is 278.11 kJ/mol in b phase region. The flow stress curves and deformation activation energy reveal that the main softening mechanism is dynamic recovery in b phase region... for deformation is equal to that for self-diffusion when the controlling mechanism involves dislocation climb. Although the stacking fault energy values have not been determined for the body centered cubic......
; twinning variant; deformation mechanism 镁合金是实际工程应用中最轻的金属结构材料, 在交通,电子通信,航空航天和国防军工等各个领域的应用日益广泛.但是,由于具有特殊的密排六方结构,镁合金的独立滑移系统非常有限,导致其室温条件下极差的成形性[1-6].对于形变镁合金中常见的几种孪生类型来说,孪生被认为是更易被激活,协调变形能力更强的变形机制.孪生具有极性特征,即只能... plastic deformation LOU Chao1, ZHANG Xi-yan2, REN Yi2 (1. National and Local Joint Engineering Laboratory of Traffic Civil Engineering Materials, Chongqing Jiaotong University, Chongqing 400074......
Trans. Nonferrous Met. Soc. China 26(2016) 722-728 Thermal deformation behavior and mechanism of intermetallic alloy Ti2AlNb Qin-chai ZHANG1, Ming-he CHEN1, Hui WANG1, Ning WANG1, Jin-dong OUYANG2...., Nanchang 330024, China; 3. Xi’an Aero Engine (Group) Co., Ltd., Xi’an 710021, China Received 22 April 2015; accepted 26 October 2015 Abstract: The deformation behavior and mechanism of Ti2AlNb-based alloy......
Dynamic recrystallization behavior and interfacial bonding mechanism of 14Cr ferrite steel during hot deformation bondingLiying Zhou1,2,Wenxiong Chen1,2,Shaobo Feng1,Mingyue Sun1,3,Bin Xu1,3,Dianzhang Li11. Shenyang National Lab.for Materials Science, Institute of Metal Research, Chinese Academy of Science2. School of Materials Science and Engineering, University of Science and Technology......
[J]. Journal Materials Process and Technology, 1996, A62(1/3): 180-184. [2] XIAO Yu-de, WANG Wei, LI Wen-xian. High temperature deformation behavior and mechanism of spray deposited Al-Fe-V-Si alloy..., at the same deformation temperature, the flow stress declines with the decrease of strain rate. Fig.5 Microstructures of non-oriented electrical steel deformed at 800 ℃ and different strain rates: (a) 10......