共搜索到10392条信息，每页显示10条信息，共1040页。用时：0小时0分0秒532毫秒
techniques, is a preferred method to improve simultaneously the strength and plasticity of metallic materials. Therefore, grain refining of aluminum is regarded as a key technique in aluminum processing industry.Up to now, there have been a number of techniques for aluminum grain refining. All the techniques can be classified as four categories as follows: grain refining by vibration and stirring......
), the grain size is comparable with that of the previous LAZ1110+Sc. This result confirms the role of Sc in grain refining as it impedes the grain growth tendency in the presence of Be. None of the above... up more energy. By this procedure, the final stage of annealing leads to recrystallization with fine grains. 3.2 Strengthening and grain refining by solid solution treatment After solution treatment......
......
the segregation for Ti, i.e. Ti-rich phase is detected. A spray refining process was carried out to reduce the impurity contents of Al and O in the prepared alloys. The Al content drops from 4.27% to 1.86%, and the O content drops from 2.10% to 0.91% after the refining process. Key words: V-Ti-Fe master alloys; metallothermic reduction method; recovery rates; refining process 1 Introduction As a kind......
of GW103K alloy. Key words: magnesium alloy; gadolinium; mechanical properties; refining, thermodynamics ... with MgCl2 in common flux. This greatly wastes rare earth elements in alloy[11]. Therefore, fluxes containing MgCl2 are not suitable for the refining process of RE magnesium alloy. In practical......
-magnetic austenitic steels. The intensive additional shear deformation caused by ASHR promotes the nucleation of recrystallization and grain refining of steel plates. With the speed ratio of 1.2...Grain refinement of non-magnetic austenitic steels during asymmetrical hot rolling processChangsheng Li,Biao Ma,Yanlei Song,Jianjun Zheng,Jikai WangState Key Laboratory of Rolling and Automation......
Microstructure and formation mechanism of grain-refining particles in Al-Ti-C-RE grain refiners徐聪1,肖文龙1,花田修治3,山县裕4,马朝利11. Key Laboratory of Aerospace Advanced Materials and Performance of Ministry... increased with increase of RE contents. As compared to Al-5Ti-0.2C grain refiner, the grain refining efficiency was gradually improved with increase of RE contents, which was mainly attributed......
Microstructure and formation mechanism of grain-refining particles in Al-Ti-C-RE grain refiners徐聪1,肖文龙1,花田修治3,山县裕4,马朝利11. Key Laboratory of Aerospace Advanced Materials and Performance of Ministry... increased with increase of RE contents. As compared to Al-5Ti-0.2C grain refiner, the grain refining efficiency was gradually improved with increase of RE contents, which was mainly attributed......
, the grain refining performance is improved but, the refinement of the particles is useful, and immoderate refining probably accelerates fading of particles, agglomeration, hence decreasing the grain... feeding to eliminate the shrinkage porosities, decreased hot tearing, and reduced mold filling time. For a long time, grain refining of cast structures has been practically employed by adding inoculants......
; the microstructure evolution and to clarify the grain refining mechanism in AZ31 during ES process. To illustrate the potential industrial application of the ES... Grain refinement in AZ31 magnesium alloy rod fabricated by extrusion-shearing severe plastic deformation process HU Hong-jun1, ZHANG Ding-fei2, YANG Ming-bo1, DENG Ming1 1. College of Materials......
