Numerical and Experimental Study of Quenching and Tempering Process of AISI 4130 Steel for Rocket Components

Abstract:

In manufacturing process of rocket components, quenching and tempering process can be used to achieve suitable hardness, ultimate tensile strength and yield strength of raw material. The trial and error of quenching and tempering process to succeed suitable properties of raw material will waste of budget and time. In this study, numerical analysis of quenching and tempering process on AISI 4130 steel was investigated comparative to actual heat treatment process to evaluate the agreement between them. The numerical analysis technique was used to seek suitable tempering temperature with specify quenching temperature at 870°C and soaking time for an hour. The result showed that suitable tempering temperature was 450°C to achieve as-required mechanical properties. The actual quenching and tempering process was performed by furnace heating to 860°C and soaking for 60 minutes, followed by 450°C tempering for 2 hours. The results will be comparatively concluded that they slightly differed from numerical analysis around 5%-12% and showed a good agreement between numerical analysis and experimental result.

• Periodical: Key Engineering Materials (Volume 792)
• Pages: 16-22
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.792.16
• Online since: December 2018
• Authors: Kritsana Thummikanonth, Pairoj Sapsamanwong, Apirath Gositanon, Thawatchai Boonluang
• Keywords: AISI 4130, Heat Treatment, Numerical Analysis

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