β' and βprecipitation in an Al-Mg alloy studied by DSC and TEM

M.J.Starink; A.-M.Zahra

首页> 外文期刊>Acta Materialia >β' and βprecipitation in an Al-Mg alloy studied by DSC and TEM

【24h】

β' and βprecipitation in an Al-Mg alloy studied by DSC and TEM

机译：DSC和TEM研究Al-Mg合金中的β'和β析出

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Precipiation in Al-16 at./100Mg is investigated by differential scanning calorimetry (DSC) and transmission electron microscopy(TEM). The shape of the β' formation DSC effect is interpreted with a novel theory and the curves obtained on the basis of this new theory fit well to the experimental curves. The s parameter derive from these fits, which is akin to the Avrami parameter n appearing in the John- Son-Mehl-Avrami-Kolmogorov model, is larger than 2.5, indicating that β' precipitation is an autocataly- Tic process. TEM showed the abundant presence of defects(mostly dislocation loops) but no evidence of Nucleation of β' precipitates on these defects. The enthalpies of formation of the βand β' phases are de- Rived as 15.7 and 11.5 kJ per mol Mg, respectively.

机译：通过差示扫描量热法（DSC）和透射电子显微镜（TEM）研究Al-16 at.100Mg的析出。 β'形成DSC效应的形状用新颖的理论来解释，并且基于该新理论获得的曲线与实验曲线很好地吻合。从这些拟合中得出的s参数大于2.5，类似于出现在John-Son-Mehl-Avrami-Kolmogorov模型中的Avrami参数n，该参数大于2.5，表明β'沉淀是自催化过程。 TEM显示出大量缺陷（主要是位错环）的存在，但没有证据表明在这些缺陷上有β'析出核。 β和β'相的形成焓分别为每摩尔Mg 15.7和11.5 kJ。

著录项

来源
《Acta Materialia》 |1998年第10期|p.3381-3397|共17页
作者
M.J.Starink; A.-M.Zahra;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类一般性问题;冶炼原料及矿石预处理;金属材料;
关键词

相似文献

外文文献
中文文献
专利

1. Correlation between TEM, SAXS and DSC to investigate the influence of SPD on precipitation mechanisms of an Al-Zn-Mg-Cu alloy [J] . Amandine Duchaussoy, Alexis Deschamps, Xavier Sauvage, MATEC Web of Conferences . 2020,第1期

机译：TEM，SAXS和DSC与研究SPD对Al-Zn-Mg-Cu合金沉淀机理的影响
2. The Effect of Si on the Precipitation Behaviour in Al-Mg-Si Alloys Studied by Thermo-kinetic Simulation and DSC Experiments [J] . Peter Lang, Margit Christa Lang, Ahmad Falahati BHM Berg und Huttenmannische Monatshefte . 2014,第3期

机译：热动力学模拟和DSC实验研究Si对Al-Mg-Si合金析出行为的影响
3. Precipitation kinetics in Ag-7.5 wt. percent Cu alloy studied by isothermal DSC and electrical-resistance measurements [J] . S. Colombo, P. Battaini, G. Airoldi Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2007,第1a2期

机译：Ag-7.5 wt。等温DSC和电阻测量研究的百分含量铜合金
4. Precipitation in stretched Al-Cu-Mg alloys with reduced alloying content studied by DSC, TEM and atom probe [C] . N. Gao, L. Davin, S. Wang, 8th International Conference on Aluminium Alloys 2002: Their Physical and Mechanical Properties Pt.2 ICAA8, Jul 2-5, 2002, Cambridge, UK . 2002

机译：DSC，TEM和原子探针研究了合金含量降低的拉伸Al-Cu-Mg合金中的析出
5. Strategies for Producing Bulk Nanocrystalline Al-Mg Alloys by Cryogenic Milling and SPS Consolidation [D] . Akinrinlola, Bamidele. 2018

机译：用低温研磨生产块状纳米晶体Al-Mg合金的策略和SPS固结
6. Isothermal Time-Temperature-Precipitation Diagram for an Aluminum Alloy 6005A by In Situ DSC Experiments [O] . Benjamin Milkereit, Lydia Giersberg, Olaf Kessler, 2014

机译：原位DSC实验研究铝合金6005A的等温时温析出图
7. Precipitation in stretched Al-Cu-Mg alloys with reduced alloying content studied by DSC, TEM and atom probe [O] . Gao N., Davin L., Wang S., 2002

机译：通过DsC，TEm和原子探针研究了具有降低的合金含量的拉伸al-Cu-mg合金中的沉淀
8. APFIM and TEM study of Ni(sub 4)Mo precipitation in a commercial Ni- 28% Mo-1.4% Fe-0.4% Cr wt. % alloy [R] . Thomson, R. C., Brown, N., Bates, J. S., 1998

机译：apFIm和TEm研究Ni（sub 4）mo在商业Ni-28％mo-1.4％Fe-0.4％Cr wt中的沉淀。％合金

β' and βprecipitation in an Al-Mg alloy studied by DSC and TEM

摘要

著录项

相似文献

相关主题

期刊订阅