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Enhancement of Grain Refined Microstructure in a Nanostructured Metals via Ultrahigh Pressure Hydrostatic Consolidation Process - Construction of Master Sintering Curve (MSC) and Its Application to Densification of Al-Mg Alloy

机译：超高压静水固结法增强纳米金属晶粒细化组织 - 主烧结曲线（msC）的构建及其在al-mg合金致密化中的应用

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Previously Al-Mg alloy was densified by hot isostatic processing and subsequently consolidated by hydrostatic extrusion. Through this process high strength and high formability nanostructured bulk Al-Mg alloy was fabricated. However, it is important to handle parametric control in powder metallurgical processing in terms of relative density, which is closely associated with its mechanical properties in acquiring a material of a desired property. At current stage processing parameter of density function is not controllable. In this study a concept of Master Sintering Curve (MSC) theory was introduced and applied to the examined material during densification to obtain a unified MSC allowing for predicting density variation in terms of only sintering time and temperature in regardless of thermal history at certain compaction pressure. After completing MSC new experimental set of time-temperature data were fitted to validate the derived MSC curve in such a way that it is completely coincident with new set of experimental data in tolerable error. Hardness measurement was conducted to study the effect of heating rates.

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Lee, S.;
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年度 2010
页码 1-9
总页数 9
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Hydrostatic pressure ; Microstructure ; Nanostructures ; Metals ; Grain structures(Metallurgy) ; High strength ; Powder metallurgy ; Korea ; Refining ; Sintering ; Magnesium alloys ; Compacting ; Isostatic pressing ; High pressure ; Hot pressing ; Extrusion ; Aluminum alloys ; Experimental data;

机译：静水压力;微观结构;纳米结构;金属;晶粒结构（冶金）;高强度;粉末冶金;韩国;精炼;烧结;镁合金;压制;等静压;高压;热压;挤压;铝合金;实验数据;

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专利

1. Master Sintering Curve for Densification Derived from a Constitutive Equation with Consideration of Grain Growth: Application to Tungsten Heavy Alloys [J] . S.J. Park, S.H. Chung, J.M. Martín, Metallurgical and Materials Transactions A . 2008,第12期

机译：考虑晶粒生长的本构方程派生的致密化主烧结曲线：在钨合金中的应用
2. Linking homogenization and densification in W-Ni-Cu alloys through master sintering curve (MSC) concepts [J] . Guneet Sethi, Seong Jin Park, John L. Johnson International Journal of Refractory Metals & Hard Materials . 2009,第4期

机译：通过主烧结曲线（MSC）概念链接W-Ni-Cu合金的均质化和致密化
3. A study of hydrostatic extrusion as a consolidation process for fabricating ultrafine-grained bulk Al-Mg alloy [J] . S. Lee, C.Y. Yoon, H.J. Park Journal of Materials Processing Technology . 2007,第1a3期

机译：静水挤压作为固结工艺制造超细晶粒Al-Mg合金的研究
4. LINKING HOMOGENIZATION AND DENSIFICATION IN W-NI-CU ALLOYS THROUGH MASTER SINTERING CURVE (MSC) CONCEPTS [C] . Guneet Sethi, Seong Jin Park, John. L. Johnson, International Conference on Powder Metallurgy amp; Particulate Materials vol.2; 20070513-16; Denver,CO(US) . 2007

机译：W-NI-CU合金通过主烧结曲线（MSC）概念的均质化和致密化联系
5. The Influence of Sc and Zr Additions on the Microstructure and Mechanical Behavior of Ultrafine Grained Al-Mg Alloys Processed by Powder Metallurgy. [D] . Harrell, Tammy Jeanne. 2014

机译：Sc和Zr的添加对粉末冶金超细晶粒Al-Mg合金的组织和力学行为的影响。
6. Prediction of densification and microstructure evolution for α-Al2O3 during pressureless sintering at low heating rates based on the master sintering curve theory [O] . Shao W.Q., Chen S.O., Li D., 2008

机译：基于主烧结曲线理论预测低热量无压烧结过程中α-al2O3的致密化和组织演变

Enhancement of Grain Refined Microstructure in a Nanostructured Metals via Ultrahigh Pressure Hydrostatic Consolidation Process - Construction of Master Sintering Curve (MSC) and Its Application to Densification of Al-Mg Alloy

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