An empirical theoretical investigation into phase and structural behaviour in Ti–Al alloys
Source: Materials Science and Technology, Volume 26, Number 5, May 2010 , pp. 534-538(5)
Publisher: Maney Publishing
Abstract:According to the average lattice and atom models of the empirical electron theory of solids and molecules (EET), effects of interstitial impurities on valence electron structures and phase transformation of Ti–Al alloys are analysed. Furthermore, the descendant degree of bond energy, melting point, and liquidus temperatures affected by interstitial impurities are calculated based on the bond energy formula of the EET. Moreover, the main controversial experimental results on the phase transformation in Ti–Al alloys are explained well. It is demonstrated that because of the effects of interstitial impurities, atom states increase, bond structures are seriously anisotropic, which results in very complex phase transformations in intermediate Al content. It is also shown that the melting point and liquidus temperatures decrease due to interstitial impurities, and the average decreased degree can be estimated very well using the EET.
Document Type: Research Article
Affiliations: 1: Biological Science and Technology College, Changchun University, Changchun 130022, China 2: College of Physical Science and Information Engineering, Ji Shou University, Ji Shou, Hunan 416000, China 3: Materials science and engineering department, The Ohio State University, 650 Ackerman Road, Suite 255, Columbus, OH, 43202 USA
Publication date: 2010-05-01
Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.Materials Science and Technology is the successor of two previous titles, for which digitised archives are available: Metal Science (Vols. 1—17; 1967—84) and Metals Technology (Vols. 1—11; 1974—84).
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Online submission site
- ingentaconnect is not responsible for the content or availability of external websites