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strengthening, the strength and hardness of tube are increased remarkably, making the application require- ments satisfied. Heated tube after enough SHT (solution heat treatment) is quenched immediately... hardening is the main strengthening mechanism in the whole process of tube bulging. The effect of solution treatment is to improve the forming capacity and ensure that the object parts have a high......
, and the maintenance of solution redox potential under an optimum range. Up to date, considerable researches on the first two terms have been summarized, while the overview of the last term has been rarely reported. Based on corresponding works in recent years, key trends and roles of solution redox potential in copper hydrometallurgy, including its definition, effect and maintenance, have been......
conditions can be adopted in this method. In this work, two electrode–clay contacts, three solution conditioners, and four anode solution supply times were used for clayey soil improvement. Based... beneficial for the transport of Ca2+, production of cementing material, and reduction of water content than that of electrode–clay (E_C) joining; through electrode–clay contact separation, the anode solution......
and dislocation strengthening, the yield strength of Mo-2.0vol.%Al2O3 alloy annealed at 1200 °C is approximately 56.0% higher than that of pure Mo. The results confirm that the addition of Al2O3 particles is a promising method to improve the mechanical properties of Mo alloys. Key words: Mo-Al2O3 alloys; hydrothermal synthesis; interface; compression test; dispersion strengthening 1......
gradually leads to the increase of alloy softening. The mechanical properties of aged alloy are determined by precipitation strengthening and solution softening, and the suitable solution treatment... 文献标志码:A Effects of solution treatment on microstructures and mechanical properties of Al-5.8Cu-0.6Mg-0.6Ag-0.3Nd aluminum alloy TIAN Zhe1, 2, YI Dan-qing1, 2, LIU Hui-qun1, 2......
have great effect of solid solution strengthening[5-6]. Solid solution strengthened Nb alloys with V, Ta, Mo, Hf and W have been reported[7-9], and also some two-phase in-situ composites containing... properties through dispersion strengthening, solution strengthening and boundary strengthening. We know, however, that the temperature of eutectic transformation decreases as Ti with low melting point......
in Al-Mg and Al-Zn-Mg alloys 图4 Al3(Sc, Zr)粒子尺寸与强化机制关系 Fig. 4 Relationship between size of Al3(Sc, Zr) and strengthening mechanism 3.2 超塑机制 要获取结构超塑性,晶粒尺寸需小于15 μm.钪锆复合添加到铝合金后主要以两种相形式存在... Metallurgica Sinica, 2001, 37(7): 749-753. [13] KENDIG K L, MIRACLE D B. Strengthening mechanisms of an Al-Mg-Sc-Zr alloy[J]. Acta Materialia, 2002, 50: 4165-4175. [14] 黄宏锋, 姜 锋, 刘兴涛, 周 江......
18Ni马氏体时效钢强化方法概述 陈建刚1,张敬霖1,卢凤双1,张建福1,张建生1 (1.钢铁研究总院,北京,100081) 摘要:18Ni马氏体时效钢是以无碳(或超低碳)铁镍马氏体为基体的,主要是经时效产生时效强化的高强度钢.本文简要概述了18Ni马氏体时效钢的发展过程,介绍了固溶强化,相变强化,时效强化,细晶强化,形变强化方法和发展趋势. 关键词:马氏体时效钢; 强化方法; 固溶强化; 相变强化; 时效强化; 细晶强化; 形变强化; maraging steel; strengthening way; solution strengthening; transformation strengthening; aging strength-ening; fine grain strengthening; deformation strengthening; [全文内容正在添......
was investigated in air and 3.5 wt%NaCl solution. Epoxy coating as a new method was used to improve the corrosion fatigue property of the material.Results show that the fatigue limit(FL) of the coated specimens is higher than that of the uncoated specimens in3.5 wt% NaCl solution because of the strengthening and blocking functions of the epoxy coating. The FL of the coated specimens in 3.5 wt% NaCl solution......
Strengthening mechanism of Fe-Cu alloy during agingZhitao HUANG 1) , Wenhuai TIAN 1) and Wenxiu LENG 2) 1) School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2) College of Science, China University of Petroleum, Beijing 102249, China摘 要:To give a further research on strengthening mechanism......
