2016
DOI: 10.1016/j.matchar.2016.09.029
|View full text |Cite
|
Sign up to set email alerts
|

Microstructural evolution of a fine-grained 7075Al alloy processed by friction stir process during partial remelting

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

0
5
0

Year Published

2019
2019
2022
2022

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 12 publications
(5 citation statements)
references
References 38 publications
0
5
0
Order By: Relevance
“…The coarsening rate constant, K , value increases as the isothermal treatment temperature increases. However, the K values for spray-cast alloys, ECAPed (Equal Channel Angular Pressed) alloys and the FSPed (Friction Stir Processed) alloys, which there were higher misorientation angles between adjacent grains in the initial microstructure of these alloys, are less than those for alloys produced by strain induced melt activated (SIMA) or recrystallization and partial melting (RAP) 4 , 13 , indicating that the initial structure in alloys strongly affects the coarsening behavior in the liquid–solid region. Furthermore, alloys with similar grain sizes and different grain boundary structures, such as Spray-forming 7034 Al alloy 14 and SIMA 7075 Al alloy 15 , have different coarsening rate constants, and Spray-forming 7034 Al alloy with more HAGBs (High Angle Grain Boundary) have much lower K values than those of the SIMA 7075 Al alloy in heating the liquid–solid region.…”
Section: Introductionmentioning
confidence: 98%
See 3 more Smart Citations
“…The coarsening rate constant, K , value increases as the isothermal treatment temperature increases. However, the K values for spray-cast alloys, ECAPed (Equal Channel Angular Pressed) alloys and the FSPed (Friction Stir Processed) alloys, which there were higher misorientation angles between adjacent grains in the initial microstructure of these alloys, are less than those for alloys produced by strain induced melt activated (SIMA) or recrystallization and partial melting (RAP) 4 , 13 , indicating that the initial structure in alloys strongly affects the coarsening behavior in the liquid–solid region. Furthermore, alloys with similar grain sizes and different grain boundary structures, such as Spray-forming 7034 Al alloy 14 and SIMA 7075 Al alloy 15 , have different coarsening rate constants, and Spray-forming 7034 Al alloy with more HAGBs (High Angle Grain Boundary) have much lower K values than those of the SIMA 7075 Al alloy in heating the liquid–solid region.…”
Section: Introductionmentioning
confidence: 98%
“…Each step of semisolid processing has a great effect on the following processes 4 : the coarsening of migrating grain boundary liquid films in which the coarsening rate is relevant to the solid volume fraction, where the coarsening rate decreases as the solid fraction increases before reaching a critical value and then decreases over this critical value 5 , 6 , coalescence for alloys of high solid fraction and aggregation for grains with low disorientation boundaries or to reduce the free energy, is primarily a lattice diffusion-controlled process 7 10 . For many diffusion-controlled coarsening systems, including solid–liquid mixtures, coarsening kinetics can be described by the Lifshitz, Slyozov and Wagner ( LSW ) theory as follows: where t is the isothermal holding time, D is the grain size after time t , D 0 is the initial grain size, K is the coarsening rate constant, and n is the power exponent 11 .…”
Section: Introductionmentioning
confidence: 99%
See 2 more Smart Citations
“…In recent years, rheoforming has become a hot research topic due to its short process, high efficiency and low cost. It has been extensively studied in low melting point aluminum [17] and magnesium alloys [18], but the rheological forming of high melting point alloy is less studied [19]. Previous investigations have revealed that the semi-solid slurry of CuSn10P1 alloy was prepared by using the ECSC device developed by our team and squeeze casting, the shaft sleeve parts with high strength and toughness were obtained [20].…”
Section: Introductionmentioning
confidence: 99%