Occurrence and Morphology of Martensite in β-Cu-Zn Alloys with Minor Al Additions

CORROSION BEHAVIOR OF THE Al-Zn-Mg-Cu ALLOYS WITH NICKEL ADDITIONS

In this research, comparative study of corrosion resistance of aluminum based alloys and Al-alloys with nickel have been investigated. Several processes are conducted for the AlZn-Mg-Cu alloys and Al-Zn-Mg-Cu-0.5%Ni alloys were homogenized, aged then retrogressed and reaged; also, alloys were homogenized then the extruded thereafter heat treated. Al-Zn-Mg-Cu alloy and AlZn-Mg-Cu-Ni alloy sample...

Morphology and Crystallography of β ' Martensite in TiNi Alloys

Martensitic transfromation in TiNi alloys of the near-equiatomic composition has been studied by utilizing electron microscopy and diffraction under various thermal treatments. It has been observed that the martensitic transformation is associated with the variants of the product. Two orientations of the martensitic phase were observed as adjacent regions in quenched alloys. These orientations ...

ANELASTIC EFFECTS IN SINGLE CRYSTALS OF -Cu-Zn AND -Cu-Zn-Al ALLOYS

ON THE INHIBITION OF STABILISATION OF MARTENSITE IN Cu-Zn-AI ALLOYS

A shape memory device, and thus the alloy, when not operating is generally held in the martensitic condition. Also the shape memory effect depends on the retransformation of the martensite to the parent phase (i). Use of an alloy in a temperature controlling device, therefore, demands reliability and reproducibility of this retransformation temperature with shape memory cycles and more particul...

Phase relations and precipitation in Al–Mg–Si alloys with Cu additions§

Application prospects in automotive industry have led to extensive studies on 6xxx alloys in recent years. These alloys often contain Cu in varying amounts. This leads to the formation of the quaternary Al–Mg–Si–Cu family of alloys that may exist either as a 6xxx or a 2xxx alloy. These alloys have distinctive properties in part due to the occurrence of a phase, designated as Q, which is stable ...