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. 15 Relationships among maximum residual tensile stress in center, water spray pressure and thickness of plate[3] 厚板表面最大残余压应力与与喷水压力,板厚度的关系曲线如图16所示.从图16中可以知道,厚板的表面最大残余压应力和厚板芯部的最大残余拉应力随喷淋压力,板材厚度的变化规...] Fig. 16 Relationships among maximum residual compressive stress on surface, water spray pressure and thickness of plate[3] 板材拉伸时,根根沿拉伸方向的塑性变形特点,可分为夹持区,过渡区和均匀变形区三个部分.高强铝合金淬火-预拉伸板的夹持区,过渡区一般都要求切除,拉伸......
temperature. Moreover, for producing sound quality welds, the portion of probe height into the plate (plunge depth) is significant. Plunge depth causes increase in the pressure below the shoulder... penetration of the tool and maintaining necessary forging pressure. Furthermore, in a study by KISHTA and DARRAS [57] during FSW and UFSW of AA 5083, it was obtained that due to high thermal capacity......
, BERTHEVILLE B, BOTTQER G, YVON K. Structure of the high pressure phase γ-MgH2 by neutron powder diffraction[J]. J Alloys Comp, 1999, 287(1/2): L4?6. [24] DIDISHEIM J J, ZOLLIKER P, YVON K, FISCHER P... of the hydrides Mg2FeH6 and Mg2CoH5 by mechanical alloying followed by sintering[J]. J Alloys Comp, 1997, 248(1/2): 164?167. [26] SELVAM P, YVON K. Synthesis of Mg2FeH6, Mg2CoH5 and Mg2NiH4 by high-pressure......
A, AURBACH D. Testing carbon-coated VOx prepared via reaction under autogenic pressure at elevated temperature as Li-insertion materials[J]. Adv Mater, 2006, 18: 1431-1436. [93] HU Y S, LIU X, MULLER......
as a novel approach to produce UFG and nanostructures (NC) in metallic materials. Several SPD techniques such as equal channel angular pressing (ECAP), high pressure torsion (HPT), accumulative roll......
): 38-41. [23] 邹喜正. 关于煤矿巷道矿压显现的极限深度[J]. 矿山压力与顶板管理, 1993(2): 9-14. ZOU Xi-zheng. Depth limit of ground behavior in coal mine[J]. Ground Pressure and Strata Control, 1993(2): 9-14. [24] Mining Rock Mechanics......
and Related Materials, 2002, 11: 1660-1669. [6] SARANGI S K, CHATTOPADHYAY A, CHATTOPADHYAY A K. Effect of pretreatment methods and chamber pressure on morphology, quality and adhesion of HFCVD diamond......
(Extractive Metallurgy), 2012(7): 23-26, 29. [46] AGATZINI-LEONARDOU S, OUSTADAKIS P, TSAKIRIDIS P E, MARKOPOULOS C. Titanium leaching from red mud by diluted sulfuric acid at atmospheric pressure[J......
such as temperature, pressure, catalyst, and time to obtain the desired products. BOUKRIBA et al [45] prepared triangular prism-like of crystalline rhombohedral sodium niobate (r-NaNbO3) via a hydrothermal......
J. Cent. South Univ. (2020) 27: 891-910 DOI: https://doi.org/10.1007/s11771-020-4339-5 Experimental simulation investigation of influence of depth on spalling characteristics in circular hard rock tunnel LUO Yong(罗勇)1, 2, GONG Feng-qiang(宫凤强)2, 3, LI Xi-bing(李夕兵)2, WANG Shan-yong(王善勇)4 1. School o......
