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principal stress-shear plastic strain path Dilation angle is an important input parameter to describe post-peak rock behavior. Dilation parameter indicates the volume change as a result of shear deformation... J. Cent. South Univ. (2018) 25: 2550-2566 DOI: https://doi.org/10.1007/s11771-018-3935-0 Dilation angle variations in plastic zone around tunnels in rocks-constant or variable dilation parameter......
Deformation behavior and plastic instability of boronized Al0.25CoCrFeNi high-entropy alloysJin-xiong Hou1,Jing Fan1,Hui-jun Yang1,Zhong Wang1,Jun-wei Qiao1,21. College of Materials Science... essentially facilitated the plastic instability of the boronized HEAs. With decreasing substrate thickness, the fracture modes gradually transformed from dimples to quasi-cleavage and eventually......
with grain size of 30-60 μm was processed by plastic deformation of asymmetrical accumulative rolling-bonding (AARB) with the strain of 3.2. The effects of annealing temperature and time on microstructural... and turns into {122}<212> cube twin texture component. Key words: severe deformation; asymmetrical accumulative rolling-bonding; ultra fine grains; copper  ......
plastic deformation was investigated.The techniques employed were tensile test at room and elevated temperature,deep drawing tests at various strain rates,X-ray diffraction test and potentiodynamic... deformation.It was observed that corrosion resistance after plastic deformation was a function of deformation temperature and alloying elements.关键词:......
the mechanical properties of magnesium and a magnesium alloy through severe plastic deformation[J]. Materials Science and Engineering A, 2001, 300(1): 142-147. [14] YOSHIDA Y, CISAR L, KAMADO S, KOJIMA Y...; grain growth; plastic deformation 再结晶晶粒大小及其微组织结构对材料的力学性能和塑性变形有显著影响[1-2].由于金属和合金的再结晶过程较为复杂,难以实时观察到实验过程中其微观结构的演化规律[3-4].近几年,发展的相场模型在模拟微观组织结构方面具有特别的优势[5-7],为人们提供一种有效的模拟合金再结晶过程的方法和手段.相场模型中采用的扩散界面模型,可以避免直接跟踪动......
Plastic Deformation in Quench-and 650℃ Tempered Steel刘禹门摘 要:<正> The variations of the dislocation structuresin the quench and 650℃ tempered steel withincrease of elongations have been investigatedby using transmission electron microscopy. Inthe small elongation stage, the boundaries betweenferrite and carbide in this steel can releasedislocations......
were little higher than Point P3 because of plastic deformation. Points P3 and P4 were in the location of severe plastic deformation so the temperature at the beginning of thixoforging not only does... that the hardness of Point P4 is the highest because of the severe plastic deformation, which is in accordance with simulation. Table 1 Hardness comparison of workpiece at different points(HV) 5......
Atomistic Simulation of the Orientation-dependent Plastic Deformation Mechanisms of Iron NanopillarsY.Zhang 1),D.J.Yu 1) and K.M.Wang 2) 1) Anshan Normal University,43 Pingan... the onset of their plastic deformation behaviors.Yielding was found to occur through two different mechanisms for [001] and [110] tensions.In the former case,plastic deformation is initiated......
Foundation item: Project(50575143) supported by the National Natural Science Foundation of China; P......
Plastic deformation behavior of a nickel-based superalloy on the mesoscopic scaleQiang Zhu1,Chuanjie Wang1,Kai Yang1,Gang Chen1,Heyong Qin2,Peng Zhang11. School of Materials Science and Engineering... depending on excellent mechanical properties at high temperatures. The plastic deformation behavior is difficult to predict due to the occurrence of size effect on the mesoscopic scale. In this paper......