Effects of forming route and heat treatment on the distortion behaviour of case-hardened martensitic steel type S156

Easton, David and Perez, Marcos and Huang, Jianglin and Rahimi, Salah (2017) Effects of forming route and heat treatment on the distortion behaviour of case-hardened martensitic steel type S156. In: Heat Treat 2017, 2017-10-24 - 2017-10-26.

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    Abstract

    The distortion behaviour of carburised and fully heat treated Ni-Cr-Mo martensitic steel (S156) has been experimentally evaluated. Dimensional measurements of Navy c-ring distortion coupons during interrupted heat treatment process for parts manufactured from two forming routes, hot forging and machined from as received bar, was performed. Metallurgical analysis was carried out to attempt to relate the observed microstructural characteristics with measured process induced distortion. The carburisation process was found to be the most severe in terms of inducing distortion. It was found that additional heat treatments during the process results in a larger final distortion. Machining parts from forgings results in higher distortions than that of those machined directly from as received bar due to the added thermal processing history. An FE simulation of the carburisation process for a c-ring coupon is presented.

    Creators(s): Easton, David, Perez, Marcos ORCID logoORCID: https://orcid.org/0000-0002-7908-044X, Huang, Jianglin and Rahimi, Salah ORCID logoORCID: https://orcid.org/0000-0001-6461-988X;
    Item type:Conference or Workshop Item(Paper)
    ID code:61506
    Keywords:heat treatment, distortion behaviour, steels, S156, c-ring distortion, c-ring coupon, Engineering design, Industrial and Manufacturing Engineering
    Subjects:Technology > Engineering (General). Civil engineering (General) > Engineering design
    Department:Faculty of Engineering > Design, Manufacture and Engineering Management
    Faculty of Engineering > Mechanical and Aerospace Engineering
    Depositing user: Pure Administrator
    Date deposited:07 Aug 2017 15:02
    Last modified:26 Mar 2020 03:27
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/61506
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