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| 題 名 | 利用合金相強化改善NiAl介金屬抗潛變性--回顧與展望=Improving the Creep Resistance of NiAl-Intermetallics through Phase Strengthening--Review and Perspective |
|---|---|
| 作 者 | 莊東漢; | 書刊名 | 材料科學 |
| 卷 期 | 30:1 1998.03[民87.03] |
| 頁 次 | 頁67-77 |
| 分類號 | 440.39 |
| 關鍵詞 | 介金屬; 抗潛變性; 相平衡; 擴散數據; Intermetallics; NiAl; Creep resistance; Phase equilibria; Diffusion data; |
| 語 文 | 英文(English) |
| 中文摘要 | 本文首先簡要回顧介金屬的發展里程,考量其高溫應用,NiAl由於具有極高熔點 已被視為一極有希望的材料,然而其先決條件在於此材料抗潛變性不足的問題被克服,針對 此目的,三種方法曾被提出,此即:固溶強化、金屬二次相強化與介金屬二次相強化,為了 有效利用這幾種潛變強化技術,基本上應該對Ni-Al-X (X=Ti, Nb, Ta, Hf, Zr)系統的相平衡作 充份的了解,同時為了澄清這些強化方法所涉及的潛變機理,其相關系統的擴散數據必須加 以建立,甚於這些需求,最後以發展抗潛變NiAl的展望及其未來任務作為本文的總結。 |
| 英文摘要 | The developing phases of intermetallics are briefly reviewed. In view of the high temperature applicationsk NiAl has been considered as promising candidate due to its very high melting point. However, the prerequisite is to overcome the inherent problem of inadequate creep resistance of this intermetallic. For this purpose, three approaches have been proposed, i.e., solid solution strengthening, metallic second phase strengthening and intermetallic second phase strengthening. To effectively exploit these creep strengthening processes, knowledge of the phase equiligria in the Ni-Al-X (X=Ti, Nb, Ta, Hf, Zr) system is essential. Also to clarify the creep mechanisms associated with these strengthening methods, diffusion data for the respective systems are necessary. Based on these requirements. The perspectives and future tasks for the development of creep resistang NiAl are summarized. |
本系統中英文摘要資訊取自各篇刊載內容。