Influence of Ti content on microstructure, mechanical properties and castability of directionally solidified superalloy DZ125L

Autor:	Jian Tong, Feixue Yang, Likui Ning, Enze Liu, Zheng Zhi
Rok vydání:	2014
Předmět:	Superalloy Materials science Metallurgy Ultimate tensile strength Volume fraction Alloy engineering Deformation (engineering) engineering.material Microstructure Castability Casting
Zdroj:	Materials & Design. 61:41-49
ISSN:	0261-3069
DOI:	10.1016/j.matdes.2014.04.059
Popis:	Directionally solidified DZ125L alloys of various Ti content were developed by low segregation technology. The microstructure, mechanical properties and castability of directionally solidified superalloy DZ125L were investigated. With decreasing Ti content in DZ125L alloy, the size, volume fraction and separation temperature of γ′ decreased. While the tensile strength and rupture life of directional solidified cylindrical samples is also obviously decreased. Lowering Ti content in alloy resulted in free hot cracking casting blades. Compared with IN792 alloy, DZ125L alloy needs much lower Ti/Ta ratio to achieve good castability.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a894393540953b7661871f43208830f https://doi.org/10.1016/j.matdes.2014.04.059 Zobrazit plný text záznamu Full Text from ScienceDirect