Manufacturing and High Temperature Mechanical Properties of Inconel 713C by Using Metal Injection Molding

Abstract:

Inconel 713C alloy was tried to manufacture by using MIM(Metal Injection Molding) process. The high-temperature mechanical properties of MIMed Inconel 713C were also investigated. Processing defects such as pores and binders could be observed near the surface. Tensile tests were conducted from room temperature to 900°C. The result of tensile tests showed that this alloy had similar or somewhat higher strengths (YS: 734 MPa, UTS: 968 MPa, elongation: 7.16 % at room temperature) from RT to 700°C than those of conventional Inconel 713C alloys. Above 800°C, however, ultimate tensile strength decreased rapidly with increasing temperature (lower than casted Inconel 713C). Based on the observation of fractography, initial crack was found to have started near the surface defects and propagated rapidly. The superior mechanical properties of MIMed Inconel 713C could be obtained by optimizing the MIM process parameters.

• Periodical: Advanced Materials Research (Volumes 602-604)
• Pages: 627-630
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.602-604.627
• Online since: December 2012
• Authors: Kyu Sik Kim, Kee Ahn Lee, Jong Ha Kim, Si Woo Park, Kyu Sang Cho*
• Keywords: High-Temperature, Inconel 713C, Metal Injection Molding (MIM), Tensile Properties

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