An Investigation in the Present Phases in a Cast Co-Al-W Cobalt-Base Superalloy Using Experimental Methods and JMatPro Software

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Aliakbari Sani Saeed; Arabi Hossien; KHEIRANDISH SHAHRAM; Ebrahimi Golamreza

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Journal: FOUNDING RESEARCH JOURNAL Year:2018 | Volume:2 | Issue:1 Page(s): 27-37

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Title

An Investigation in the Present Phases in a Cast Co-Al-W Cobalt-Base Superalloy Using Experimental Methods and JMatPro Software

Author(s)

Aliakbari Sani Saeed | Arabi Hossien | KHEIRANDISH SHAHRAM | Ebrahimi Golamreza | Issue Writer Certificate

Keywords

Cast Co-Al-W superalloy

JMatPro software

Prediction of second phases

μphase

Abstract

Demand for improvements of efficiency in the gas turbines is a driving force for development of new materials generations. Recently, novel Co-Al-W cobalt-base superalloys containing strengthening γ ' phase which are capable of using at high temperature have been subject of intense research. The main purpose of this study is to investigate and evaluate present phases in a multi-components Co-Al-W superalloy by both experimental methods and JMatPro software. An alloy belong to this category was cast in VIM furnace. The samples were characterized by SEM-EDS, FE-SEM, XRD and DSC instruments. In the as cast condition, it was found that the matrix phase (γ ) only contained gamma prime phase (γ ') and MC carbides (riched in Ti and W elements). The JMatPro software simulated precisely the present phases and their formation temperature. Moreover, the software data demonstrated the μ phase must have presented in the microstructure. According to experimental and simulation results, heat treatment at 900° C for 48 hours was carried out on the alloy which revealed the tungsten-riched μ phase in the microstructure. It was found that the formation of the thermodynamically stable μ phase is restricted depending on the kinetics of the reaction.

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APA: Copy

Aliakbari Sani, Saeed, Arabi, Hossien, KHEIRANDISH, SHAHRAM, & Ebrahimi, Golamreza. (2018). An Investigation in the Present Phases in a Cast Co-Al-W Cobalt-Base Superalloy Using Experimental Methods and JMatPro Software. FOUNDING RESEARCH JOURNAL, 2(1 ), 27-37. SID. https://sid.ir/paper/265652/en

Vancouver: Copy

Aliakbari Sani Saeed, Arabi Hossien, KHEIRANDISH SHAHRAM, Ebrahimi Golamreza. An Investigation in the Present Phases in a Cast Co-Al-W Cobalt-Base Superalloy Using Experimental Methods and JMatPro Software. FOUNDING RESEARCH JOURNAL[Internet]. 2018;2(1 ):27-37. Available from: https://sid.ir/paper/265652/en

IEEE: Copy

Saeed Aliakbari Sani, Hossien Arabi, SHAHRAM KHEIRANDISH, and Golamreza Ebrahimi, “An Investigation in the Present Phases in a Cast Co-Al-W Cobalt-Base Superalloy Using Experimental Methods and JMatPro Software,” FOUNDING RESEARCH JOURNAL, vol. 2, no. 1 , pp. 27–37, 2018, [Online]. Available: https://sid.ir/paper/265652/en

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