Heat treatment of 34CrNiMo6 steel used for mooring shackles

This study presents an experimental investigation of the heat treatment of 34CrNiMo6 steel used for shackles. Indeed, industrial requirements impose specific mechanical properties to the materials which constitute shackles. The aim of this work is to propose a method to relate heat treatment paramet...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2017-07, Vol.91 (5-8), p.2329-2346
Main Authors: Cochet, J., Thuillier, S., Loulou, T., Decultot, N., Carré, P., Manach, P.-Y.
Format: Article
Language:English
Subjects:
Alloys
CAE) and Design
Computer-Aided Engineering (CAD
Conduction heating
Conductive heat transfer
Cooling
Cylindrical coordinates
Dilatometry
Engineering
Engineering Sciences
Hardness
Heat treating
Heat treatment
Industrial and Production Engineering
Material properties
Mathematical models
Mechanical Engineering
Mechanical properties
Media Management
Microprocessors
Mooring
Nickel chromium molybdenum steels
Original Article
Phase distribution
Phase transitions
Temperature dependence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study presents an experimental investigation of the heat treatment of 34CrNiMo6 steel used for shackles. Indeed, industrial requirements impose specific mechanical properties to the materials which constitute shackles. The aim of this work is to propose a method to relate heat treatment parameters and the resulting mechanical properties. Instrumented cylindrical specimen are submitted to successive heat treatments under conditions representative of the industrial process. Core and surface temperatures are recorded during cooling. Metallographic observations and hardness measurements are performed after each heat treatment, in order to characterise the final phase distribution and mechanical properties. A model based on the one-dimensional heat conduction equation in cylindrical coordinates is developed within an implicit scheme, taking into account the temperature-dependent phase transformations. The results firstly provide a validation of the input data using specific dilatometric experiments, which then leads to a comparison between the experimental and numerical evolution of the core temperature under each cooling condition, as well as the prediction of the phase volume fractions and the resulting hardness. It is shown that the proposed approach yields a very good representation of the material properties.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-016-9951-z