WebMar 1, 2010 · Solute Cluster Evolution During Deformation and High Strain Hardening Capability in Naturally Aged Al-Zn-Mg Alloy. The natural aging (NA) response of a … WebMar 15, 1994 · Abstract. Small additions of silver can modify age hardening in aluminum alloys that contain magnesium. Thus, although silver has no significant effect on artificial aging on Al-Cu alloys, it causes a complete change to precipitation processes that normally occur in aged Al-Cu-Mg alloys. In this regard, special interest has been shown in those ...
Microstructure evolution and shearing behavior of δ
WebThe precipitation sequence of Al–Cu alloys has been investigated extensively [6,7,8,9,10] and the effect of the stretch prior to aging on the precipitation has been of specific concern [11,12,13,14,15]. Small amounts (1~8%) of pre-stretch were observed to enhance the age hardening response in a few of Al–Cu–x alloys [13,14,15]. WebJan 11, 2024 · The Al-Cu-Mg alloy EN AW 2618A (EN AW AlCu2Mg1.5Ni) is used for applications subjected to long-term service at elevated temperatures in the aerospace and transportation industry due to its favorable material properties (e.g., slow long-term degradation) [].It contains Fe and Ni in the form of intermetallic compounds of µm size, … hm joensuu työpaikat
Origins of hardening in aged Al-Cu-Mg-(Ag) alloys
WebAn age-hardenable Al-Cu-Mg alloy (A2024) was processed by high-pressure torsion (HPT) for producing an ultrafine-grained structure. The alloy was further aged for extra ... WebThis is an initial report of a multi-technique study on the effect of Mg alloying on solute-vacancy interactions during the early stages of ageing of dilute 2xxx Al-Cu-Mg alloys so as to better understand the early rapid hardening (RH) that occurs in certain compositions of these alloys and the more general phenomena of secondary hardening (SH) at ambient … WebMar 1, 1997 · Pre-precipitate atomic co-clusters of Cu and Mg are responsible for the rapid hardening reaction in Al-l.lCu-1.7Mg (at.%) alloys aged at 150. 2. Cluster hardening (i.e.) hardening due to the formation of sub-nanometre atomic clusters, may represent a new … hm joesoef