Effect of Microstructure on the Cold Headability of a Medium Carbon Steel

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概要

• 論文の詳細を見る

• Cold headability is the ability of a cylindrical metallic specimen to be shaped at high strain rate into the head of a bolt, screw or other cold-formed part without cracking. This property is material dependent and can be influenced by many factors such as chemical composition, surface condition, and microstructure. The effect of microstructure upon the cold headability of a medium carbon steel (1036M) was investigated. Six different microstructures were produced by various heat treatments. Drop weight tower (DWT) testing methods, previously developed at McGill University, were used on samples of these materials. Visual inspection, metallographic and SEM analysis were carried out to detect cracks on the surfaces of tested samples and to identify their causes. The axial and circumferential strains of the tested samples were measured and the strains at which cracks were initiated were used to assess the headability. The cold headability was found to be particularly sensitive to the microstructure and was greatest in the completely spheroidized structures. This indicates that DWT testing is a valid method for evaluating the cold headability of metallic materials.

• 社団法人 日本鉄鋼協会の論文
• 2004-05-15

著者

• Jonas John

  Department of Metals and Materials Engineering, McGill University

• Humphreys Alan

  Department Of Metallurgical Engineering Mcgill University

• Jonas John

  Department Of Metals And Materials Engineering Mcgill University

• Jonas John

  Department Of Materials Engineering Mcgill University

• Hone Michel

  Ivaco Rolling Mills

• MA Xiaoyu

  Department of Metals and Materials Engineering, McGill University

• NEMES Jim

  Department of Mechanical Engineering, McGill University

• NICKOLETOPOULOS Nick

  IVACO Rolling Mills

• Ma Xiaoyu

  Department Of Metals And Materials Engineering Mcgill University

• Nemes Jim

  Department Of Mechanical Engineering Mcgill University

• Humphreys Alan

  Department Of Metals And Materials Engineering Mcgill University

関連論文

• The Ferrite Transformation in Hot Deformed 0.036% Nb Austenite at Temperatures Above the Ae3
• The Dynamic, Static and Metadynamic Recrystallization of a Nb-microalloyed Steel
• Effect of Chromium, Boron and Manganese Additions on the Deformation and Recrystallization Textures of Warm Rolled Low Carbon Steels
• The Deformation Microstructure and Recrystallization Behavior of Warm Rolled Steels
• Effect of alloying elements on the microstructure and texture of warm rolled steels
• Correlation between the Deformation and Post-deformation Softening Behaviours in Hot Worked Austenite
• Effect of Processing Schedule on the Microstructure and Texture of 0.78wt% Cr Extra-low-carbon Steel
• The Formation of Deformatio Induced Ferrite during Mechanical Testing
• Predicting the Critical Stress for Initiation of Dynamic Recrystallization
• Softening and Flow Stress Behaviour of Nb Microalloyed Steels during Hot Rolling Simulation
• Effect of Microstructure on the Cold Headability of a Medium Carbon Steel
• The Ferrite Transformation in Hot Deformed 0.036% Nb Austenite at Temperatures Above the Ae_3
• AIN Precipitation in Dual-phase 3% Si Electrical Steels
• The Hot Strip Mill as an Experimental Tool
• Effect of Finishing Temperature on Hot Band Textures in an IF Steel
• Effect of Silicon on the Kinetics of Nb(C, N)Precipitation during the Hot Working of Nb-bearing Steels
• Dynamic Transformation of a Low Carbon Steel at Temperatures above the Ae_3
• The Critical Strain for Dynamic Transformation in Hot Deformed Austenite
• Dynamic Transformation Behavior of a Deformed High Carbon Steel at Temperatures Above the Ae3
• The Critical Strain for Dynamic Transformation in Hot Deformed Austenite

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