The Mg-Zn phase diagram [Massalski2] depicts the following intermediate phases: Mg 7 Zn 3 (high-temperature phase), MgZn, Mg 2 Zn 3 (monoclinic), MgZn 2 ( C 14-type hexagonal) and Mg 2 Zn 11 ( D 8 c -type cubic). Ternary Phases Two ternary phases are known in this system. ...
Isothermal sections at 360 °C and 330 °C for the Mg-rich part of the phase diagram are shown in Fig. 1. In the Al–Mg–Zn system, four ternary intermetallic compounds are known, called τ1 [7], τ2 [8], q [8], and Φ [9], [10], [11], [12], [13]. τ1 and τ2...
Refs. [7,8]. While an extremely wide primary phase field of MgZn 2 was shown in Ref. [7], a part of the wide MgZn 2 field was replaced by primary phase field of ternary -phase in the later assessment [3]. The thermal analysis down to lowtemperature region for Mg- ...
11 Phase diagram of Al-Zn-Mg ternary alloys in Al-rich corner and binary phase diagrams of Al-Sc & Al-Er 150 有色合金 Vol.68 No.2 2019 众所周知,Sc元素的细化机理是在铝基体中以 过饱和固溶体形式存在,随后在凝固降温过程中弥散 析出初生Al3Sc,提高形核质点数量,细化晶粒[11-13]. 但Er元素...
Mukhopadhyay, A. K., Yang, Q. B. & Singh, S. R. The influence of zirconium on the early stages of aging of a ternary Al-Zn-Mg alloy.Acta Mater.42, 3083–3091 (1994). ArticleCASGoogle Scholar Chrominski, W. & Lewandowska, M. Precipitation phenomena in ultrafine grained Al–Mg–Si...
L iquidus projection of Mg- Zn-AI ternary phase diagram 3 结论 ( 1) 金属型铸造 Mg一8Zn一4AI一0.25Mn 合金 的铸 态组织主要由初生 a-Mg 、Mgsz ( A I,Z n) 。相和 A I Mg Zn 相组成 。其中 Mg。 ( AI,Zn) 。相主要 呈连 ...
In this work, the Fe–Si–Zn system has been re-evaluated as it is a ternary system of the Mg–Fe–Si–Zn quaternary system. The thermodynamic description of the Fe–Si liquid phase has been re-optimized with only minor modifications to the descriptions of the Fe–Si intermetallic compounds...
Note that for a binary eutectic solidification in a ternary system, only one of the concentrations, C i+1 1L or C i+1 2L , is independent; because there exists a (α+β) eutectic trough function in the ternary phase-diagram space for the binary eutectic reaction, Tliq(α+β) = Tl...
The left image shows the calculation results obtained in this work; the right image shows a phase diagram reported in the literature [20]. Figure 5. Isothermal section at 608 K of the Zn-Al-Mg ternary system. The left image shows the calculation results obtained in this work; the right...
phase suggesting they were the first to freeze when the material was cast. This is consistent with the Mg-Sb phase diagram that shows Mg3Sb2has a melting point of 1245 °C18,19,20. The binary eutectic (highlighted in orange via false colour imaging) and ternary eutectic phases (...