Cu-Cr-Zr-Mg alloyphase transformationconductivityTTT curvesAfter solid solution treatment, the effects of aging processes on the microstructure and electrical conductivity of Cu–Cr–Zr–Mg lead frame alloy were investigated in order to determine the phase transformation and the time–temperature-...
The transformation mechanism of hexagonal delta phase from the disordered bcc gamma phase has not been reported before in the Zr-rich U鈥揨r alloy system. With the help of X-ray diffraction, transmission electron microscopy (TEM) and high-resolution TEM analyses it was shown that the gamma to...
SEM), energy dispersive X-ray Spectroscopy (EDS), transmission electron microscope (TEM) differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were employed to investigate the evolution of intermetallic phases during homogenisation at 465 °C for 0–48 h for Al-Zn-Mg-Cu-Sn alloy...
to accelerate phase transformation; cooling same; and crushing same; wherein a raw material alloy having the c-axis crystal orientation of the R2T14B-type intermetallic compound phase is used as said R-T-B-M raw material alloy.doi... NAKAYAMA RYOJI C O CHUO-KENKYU,TAKESHITA TAKUO C O CHU...
(SubmittedFebruary21,2011;inrevisedformApril18,2011) ThisarticleinvestigatesthephasetransitionsofcomplexquaternaryAl-Zn-Mg-CualloyswithZraddition atoveragedconditions.Differentialscanningcalorimetry(DSC)isemployedtoquantitativelyanalyzethe phasetransformationphenomenaofawiderangeof7xxxseriesalloysthroughendothermicandexo-...
phase transformation in metals and alloypdf
钛合金相变(phase transformation in titanium alloy)钛合金的固态组织在不同条件下的形成和变化规律。由于纯钛具有两种同素异晶体，因此其固态相变类型繁多，性质复杂，远超过铜、铝、镍等其他有色金属。概括起来，钛合金的固态相变可归纳为3大类：在一般连续加热和冷却条件下进行的同素异晶转变；在淬火过程中发生的...
The stability of the tetragonal phase in the composite, and the martensitic transformation behavior of the constrained shape memory ceramics subjected to thermal and stress stimuli are examined. Reversible martensitic transformation of the CZ single-crystals clusters under the Al matrix constraint is ...
关键词:Cu-Zr合金;冷却速率;非平衡凝固;相选择;包晶转变 中图分类号:TG146.2文献标志码:A Effectsofcoolingrateonprimaryphaseand peritectictransformationinCu 70 Zr 30 alloy YANGWei 1,2 ,ZHANGYan-long 1 ,YUHuan 1,2 ,CHENShou-hui 1 ,LUBai-ping 1 ,WANGZhi-tai 3 (1.NationalDefenseKeyDisciplineLabo...
Electrical conductivity and phase transformation kinetics equations were established. The addition of Ce promoted the precipitation of the secondary phase, improved the hardness, and delayed the dynamic recrystallization of the Cu-Mg alloy in the aging process. Nanoscale secondary phases in the aging ...