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of precipitate shape and orientation on dispersion strengthening in magnesium alloys [J]. Scripta Mater, 2003, 48: 1009-1015. [16] HALE O L. The deformation and ageing of mild steel (III): Discussion... and mechanical properties of Mg alloys [J]. Materials Chemistry and Physics, 2003, 80: 472-475. [13] NIE J F, MUDDLE B C. Characterisation of strengthening precipitate phases in a Mg-Y-Nd alloy [J]. Acta Mater......
Experimental The 7B04 alloys were prepared using high pure aluminum, pure Zn, pure copper, pure Mg as well as master alloys of Al-Cu, Al-Mn and Al-Cr. The dimensions of flat ingot for CSR technology... are finer than those of FSR plate. The grain boundary precipitates of CSR plate exhibit in a continuous chain. The precipitate free zone (PFZ) of CSR plate is thinner than that of FSR plate. Some dark......
成分时,选用能够使基面滑移阻力增加且基面与非基面滑移阻力差值减小的合金元素,既可以产生强化提高合金强度,又可以促进非基面滑移提高合金塑性,达到同时提高合金强度和塑性的效果,实现了"固溶强化增塑"的合金设计目的. 图2 "固溶强化增塑"合金设计理论思路 Fig. 2 Thoughts of designing alloys by solid solution strengthening.... Solute-homogenization model and its experimental verification in Mg-Gd-based alloys[J]. Journal of Materials Science & Technology, 2018, 34(7): 1132-1141. [21] YU Zi-jian, HUANG Yuan-ding, QIU Xin......
temperatures.In Mg-7Gd-5Y-1Nd-0.5Zr alloy,the β precipitate phase was assumed to be one of the main strengthening phases in peak-aged samples.This study aimed to determine the crystal structure... formed on prismatic planes could play an important role in alloy strengthening by proving effective barriers to gliding dislocations.A single β plate often contained several domains of(11)β twin......
temperatures.In Mg-7Gd-5Y-1Nd-0.5Zr alloy,the β precipitate phase was assumed to be one of the main strengthening phases in peak-aged samples.This study aimed to determine the crystal structure... formed on prismatic planes could play an important role in alloy strengthening by proving effective barriers to gliding dislocations.A single β plate often contained several domains of(11)β twin......
and significantly increase properties of some aluminum alloy matrix composites [11-13]. According to Ref. [14], the main strengthening phases of 2024 Al are θ(Al2Cu) and S(Al2CuMg). The addition of reinforcement.../Al interfaces and different kinds of precipitate/Al interfaces. So, it is important to characterize the interface microstructure in the aluminum matrix composites. In this study, a 35% SiCp/2024 Al......
of strengthening precipitate phases in a Mg-Y-Nd alloy [J]. Acta Materialia, 2000, 48(8): 1691-1703. [32] SINGH A, TSAI A P. Structural characteristics of precipitates in Mg-Zn-based alloys [J]. Scripta... be attributed to the precipitation strengthening of β' phase. Key words: Mg-6Zn-1Mn-4Sn-0.5Ca; extrusion; aging; microstructure; precipitation strengthening 1 Introduction Magnesium (Mg) alloys have become......
and a strengthening precipitate. A series of effects of Fe, Si, Zr, Sc and Li addition on the behavior of Al3 Hf and Al alloys are given. Moreover, the effects of Hf on the microstructure and properties of Al...Hafnium in Aluminum Alloys:A ReviewZhi-Hong Jia,Hui-Lan Huang,Xue-Li Wang,Yuan Xing,Qing LiuCollege of Materials Science and Engineering, Chongqing University摘 要:
plays a dominant role in strengthening. The growth and the change in crystal structure of the precipitate particles are the main factors leading to the decrease in strengthening after the aging peak...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......
°), is the main strengthening precipitate in Al-Mg-Si alloys [8-11]; the semi-coherent β′ phase, with hexagonal structure and lattice parameters: a=0.705 nm, c=1.215 nm [10], has less strengthening effect..., MUDDLE B C, POLMEAR I J. The effect of precipitate shape and orientation on dispersion strengthening in high strength aluminium alloys [J]. Materials Science Forum, 1996, 217-222: 1257-1262. Al-0.96Mg2Si合......