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...
分类号UDC密级学位论文Mg.A1、Mg.Zn基镁合金相平衡的热力学研究作者姓名:指导教师:申请学位级别:学科专业名称:论文提交日期:学位授予日期:陈丽娟蒋敏教授硕士材料学2010年7月2010年月东北大学材料与冶金学院学科类别:工学论文答辩日期:2010年7月2日答辩委员会主席:跫玖璐散遥评阅人:奄锣、啪列%暖王滥杰,名磴东北...
13 Phase diagram of Al-Cu binary alloy(a) and Al-Zn-Mg ternary alloy in Al-rich corner(b) 与AlZnMgCu 四元相形成过程的初始阶段一样, 当液态金属降温至液相线温度时,液态合金首先发生 匀晶转变,α(Al)相从熔体中形核析出。随着温度的降 低,初生α(Al)相以枝晶状生长方式不断凝固长大,同 图14 ...
On the basis of a critical assessment, experimental investigations by EPMA on ternary Al–Mg–Zn alloys were specifically performed to provide missing data of the ternary solubilities of the Al–Mg and Mg–Zn phases as well as to improve the knowledge of the extensions of the homogeneity ranges...
Ternary Systems: Al-Cu-Fe, Al-Cu-Gd, Al-Cu-Mg, Al-Cu-Mn, Al-Cu-Nb, Al-Cu-Ni, Al-Cu-Sc, Al-Cu-Si, Al-Cu-Tb, Al-Cu-Ti, Al-Cu-Yb, Al-Cu-Zn, Al-Cu-Zr, Al-Dy-Fe, Al-Dy-Ni, Al-Er-Fe, Al-Er-Ni, Al-Fe-Gd, Al-Fe-Ho, Al-Fe-La, Al-Fe-... G Effenberg...
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...
3.2. Phase structure The XRD patterns of ternary Zn–Al–Mg alloys are given in Fig. 3, and are compared with those of binary Zn–Al alloy and pure Zn. The results are consistent with morphologies and phase diagrams shown in Figs. 1 and 2: Zn–Al intermetallic compounds were not found...
There are several experimental studies on the phase diagram of Mg-Zn-Al alloys. Eger et al. [21] presented the first systematic investigation on the liquidus surface. Bergman et al. [22,23] and Clark et al. [24,25] then studied the ternary intermetallic compounds of τ phase and φ pha...
Phase stability and mechanical properties of multi-phase alloys based on the B2 CoAl and the E2{sub 1} Co{sub 3}AlC The Co-Al-C ternary phase diagram has been experimentally examined for the Co-corner with a particular interest in phase relations among B2 type intermetal... Kimura,Yoshisat...
牡日期:俎年上月经日硕士学位论文摘要摘要CALPHAD(CALculationofPHAseDiagram)技术是目前相图评估与预测最常用的手段。通过使用CALPHAD方法,我们可以根据现有的试验数据对各种材料体系的相平衡进行计期,从而可以指导新材料的研制与设计,并大大减少材料研发的成本与周期。本文主要基于CALPHAD方法对AI-Nb,A卜Fe—Mn等铝合金...