Influence of processing on microstructure and mechanical properties of (α+β) titanium alloys
Influence of processing on microstructure and mechanical properties of (α+β) titanium alloys
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DOI：
10.1016/s0921-5093(97)00778-8
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发表时间：
1998-03-15
期刊：
影响因子：
6.4
通讯作者：
Lutjering, G
中科院分区：
文献类型：
--
作者：
Lutjering, G
本文综述了双相(α+β)钛合金的加工工艺、显微组织和力学性能之间的关系。尽管对于钛合金的大多数结构应用来说，各种重要的力学性能(屈服应力、塑性、Hcf、LCF、微裂纹和宏观裂纹的da/dN、K(IC)和蠕变)都必须优化或平衡，尽管工艺和显微组织都包含许多变量，但从众多相关可能性中可以看出，只有少数基本原理是真正重要的。其中之一是冷却速度、菌落大小和滑移长度之间的关系，这直接导致了可用于大多数应用的双峰(双重)类型微结构的优点，并涉及可重复和不敏感的加工路线。(C)1998 Elsevier Science S.A.保留所有权利。
The present paper tries to summarize the relationship between processing, microstructure, and mechanical properties of two-phase (alpha + beta) titanium alloys. Although for most structural applications of titanium alloys a variety of important mechanical properties (yield stress, ductility, HCF, LCF, da/dN of micro- and macrocracks, K(IC), and creep) have to be optimized or balanced, and although both processing as well as microstructure contain many variables, it can be shown that from the numerous correlation possibilities only a few underlying basic principles are really important. One of them is the relationship between cooling rate, colony size, and slip length leading directly to the advantages of a bi-modal (duplex) type of microstructure usable for most applications and involving a reproducible and insensitive processing route. (C) 1998 Elsevier Science S.A. All rights reserved.