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operation can be divided into three stages: pre-breakdown, spot contact and melting, elastoplastic deformation and recovery. (1) Pre-breakdown stage It is well known that arc generates in the stage... compared with that at 0.2 N. Fig. 8 Schematic diagram of conductive spot contact and melting stage during make operation (3) Elastoplastic deformation and recovery stage With progressively downward......
of bending of inorganic electronic materials on plastic substrates[J]. Advanced Functional Materials, 2010, 18(18): 2673-2684. [33] PASHLEY D W. A study of the deformation and fracture of single..., KRAFT O. Deformation behavior of thin copper films on deformable substrates[J]. Acta Materialia, 2001, 49(19): 3935- 3947. [40] KRAFT O, HOMMEL M, ARZT E. X-ray diffraction as a tool to study......
effect on Mg-Li alloys because fine W-phase particles have strong pinning effect on grain boundaries and retard the dislocation movement during the deformation process. In addition, due to the fcc... the maximum YS and UTS among the investigated alloys. Because of the outstanding ductility of β-Li, the negative impact of W-phase on ductility can be counteracted by the coordinating deformation of two phases......
]. In general, it is difficult to join copper and brass by conventional fusion welding approaches due to formation of cracks and porosities, sever deformation, and high residual stress as well... gradient caused by the storage heating effect and plastic deformation during FSW. Therefore, FSW can affect the corrosion performance of copper and its alloys welds. Yet, little research has been done......
,et al. Temperature and deformation analysis on slope subgrade with rich moisture of Qinghai-Tibet railway in permafrost regions[J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(8...; Technology, 2011, 65(2): 203-210. [24] 邰博文. 多年冻土区高速公路特殊路基结构变形机理及服役性能研究[D]. 北京: 北京交通大学土木建筑工程学院, 2018: 98-99. TAI Bowen. Study on deformation mechanism and service performance of expressway special......
金表面腐蚀产物主要成分并没有发生变化. 3) SLM 态熔池边界是合金的性能弱区,为S元素和O元素的扩散提供了通道,腐蚀性的熔盐会沿着熔池边界深入到合金的基体内部.同时快速凝固条件下的柱状晶晶界也为O和S的扩散提供了通道. REFERENCES [1] WANG Y, SHAO W Z, ZHEN L, ZHANG B Y. Hot deformation behavior of delta-processed superalloy 718[J]. Materials Science & Engineering A, 2011, 528(7): 3218-3227. [2] NING Y Q, FU M W, CHEN X. Hot deformation behavior of GH4169 superalloy associated with stick δ phase......
deformation, normally, the axial elastic modulus of corrugated steel webs is only a few hundredths or even a few thousandths of the steel elastic modulus Es. Therefore, the axial stiffness... the corrugated web’s folding angle, as shown in Figure 2. 3) With small deformation, the projection shape of the section after BBCSW’s torsion displayed on its original plate is identical to the original section......
Wei, et al. Research on large deformation of surrounding rock and mechanical characteristics of lining of carbonaceous slate tunnel based on field measurement[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38(4): 832-841. [24] 刘银涛, 李治国, 种玉配, 等. 深埋碳质板岩隧道采用不同开挖方法时围岩及初期支护变形特征[J]. 铁道建筑, 2019(2): 81-84. LIU Yintao, LI Zhiguo, ZHONG Yupei, et al. Deformation features of surrounding rock......
, the pores and hot cracks as well as welding deformation occur during the welding process of magnesium alloy and then degrade the mechanical properties of the joints [5]. In order to obtain a high-quality... alloy joint indicated that it suffered both ductile and brittle deformation during the tensile tests. Obviously, the fracture of TIG welded joint was located in the HAZ as it is the weakest zone......
] and envelope deformation [25]. The instantaneous frequency estimation technique based on phase demodulation [26, 27] is subjected to the constraint of limited speed fluctuation. Another time- frequency... deformation in computed order tracking and error in order analysis [J]. Mechanical Systems and Signal Processing, 2014, 48(1, 2): 92-102. DOI: 10.1016/j. ymssp.2014.03.004. [26] Combet F, Zimroz R. A new......