|
|
|
| Preparation of injection molded IN713C alloy |
| WU Wei1，LI Du-xin1，YANG Wen-yan1，LU Ren-wei2，YANG Zhong-chen2 |
1. State Key Laboratory of Powder Metallurgy， Central South University， Changsha 410000， China
2. Changsha Juzhong Metallurgy Technology Co.， Ltd.， Changsha 410000， China |
|
|
|
|
Abstract In order to find a kind of alloy material suitable for the high temperature environment of the gasoline engine turbocharger， the IN713C alloy was chosen as the research object， aiming at exploring the best parameters of IN713C injection molding process. The density， microstructure and mechanical properties of the prepared samples were tested and analyzed. It is found that 850 ℃ is the better pre-heating temperature. When the sintering temperature is 1 300 ℃ and the dwell time is 3 h， the density， hardness and tensile properties of the samples are the best. The sintered density is 7.83 g/cm3， and the relative density is 99.0%.
|
|
Received: 17 March 2016
Published: 18 April 2017
|
|
|
|
| [1] T M Pollock, S Tim, J. Propul. Power 22 [M] (2006) 361-274.[2] Brinegar J R, Mihalisin J R, Vandersluis J. The Effects of Tantalum for Columbium Substitutions in Alloy 713C[C]// Superalloys. 1984:53-61.[3]Ges A, Palacio H, Versaci R. IN-713C characteristic properties optimized through different heat treatments[J]. Journal of Materials Science, 1994, 29(13):3572-3576.[4]Lachowicz M, Dudziński W, Haimann K, et al. Microstructure transformations and cracking in the matrix of γ–γ′ superalloy Inconel 713C melted with electron beam[J]. Materials Science & Engineering A, 2008, 479(s 1–2):269-276.][5]Nobrega B, Ristow J W, Machado R. MIM processing and plasma sintering of nickel base superalloys for aerospace and automotive applications[J]. Powder Metallurgy, 2008, volume 51(2):107-110(4).[6]Contreras J M, Jiménez-Morales A, Torralba J M. Experimental and theoretical methods for optimal solids loading calculation in MIM feedstocks fabricated from powders with different particle characteristics[J]. Powder Metallurgy, 2010, 53(1):34-40.[7]Somoza A, Santos G, Ges A, et al. Age-Hardening and Precipitation Phenomena in the Inconel-713C Superalloy Studied by Means of Positron Lifetime Spectroscopy[J]. Klinische Monatsbltter Für Augenheilkunde, 1999, 174(1):189–198.[8]Hu Y, Li Y, He H, et al.Preparation and Mechanical Properties of Inconel718 Alloy by Metal Injection Molding[J].Rare Metal Materials & Engineering, 2010, 9(5):775-780[9]Jeandin M, Rupp S, Massol J, et al.Structural study and image analysis of rapidly cooled supersolidus-sintered Astroloy[J].Materials Science & Engineering, 1986, 77(86):139-147[10]German R M.Sintering Theory and Practice[J].Sintering Theory and Practice, by Randall M. German, 1996, 4(4):568-568[11] Nobrega B N, Eberle T, Ristow W. Mechanical Properties of Two MIM Processed Nickel-Based Superalloys[C]. Materials Science Forum, 2008, 591-593:252-257. |
|
|
|
2017, Vol. 27 
