- 作者: 蔣長榮
- 作者服務機構: 國立清華大學動力機械系
- 中文摘要: 根據其構成單晶,來預測多晶金屬的塑變材料行為是一項複雜的問題。本文首先介紹晶體塑變的基本物理機制;隨後逐一解釋相關的多晶模式,特別強調其發展的基本觀念和主要結果。對於利用這些模式進行相關的多晶塑變探討,也舉了例子,加以說明其成績。最後,本文並就多晶塑變學的未來發展,以具體的研究範圍做為指標,明白指出其根本問題之所在。
- 英文摘要: To predict the plastic behavior of a polycrystalline metal from that of its constituent single crystalgrains is a complicated problem. Fundamental concepts on the physical mechanisms of crystalline plasti-city are introduced. Several polycrystal models which allow a theoretical relation between single crystalproperties and polycrystal properties to be established are reviewed, emphasizing their original conceptsand final results. Some applications of these models are illustrated to show how these models can beused to study some polycrystal plastic behavior. Finally, the paper concludes with remarks identifyingsome specific areas where further study is needed.
- 中文關鍵字: polycrystal; crystalline plasticity
- 英文關鍵字: --