Computer Simulation on Structural Changes of Hypoeutectoid Steel in Laser Transformation Hardening Process

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概要

• 論文の詳細を見る

• The present paper deals with the heat flow and solid-state phase transformations during the laser transformation hardening of hypoeutectoid steel. A finite-difference computer model was developed to analyze the changes with the time of heat flow, the carbon redistribution in austenite and the subsequent quenching to martensite during laser transformation hardening. The analyzed results were shown in the pseudocolor images on the display. Furthermore, experimental surface transformation hardening was carried out using a square beam of uniform energy distribution, and the results were in good agreement with the theoretical results obtained by the computer model. The transformation hardening process can be also simulated for any given hypoeutectoid steel under any laser irradiating condition. The computer model proposed in the present paper can be applied to determine theoretically the best combination of the process variables for the laser transformation hardening in advance.

• 一般社団法人日本機械学会の論文
• 1989-01-15

著者

• Ohmura E

  Osaka Univ. Osaka

• Inoue Katsunori

  Welding Research Institute Osaka University

• Ohmura Etsuji

  Welding Research Institute, Osaka University

• HARUTA Koichi

  Osaka University

• Haruta K

  Osaka University

関連論文

• Computer Simulation on Transformation Process of Steel on Rapid Heating (Report I) : Formation of Austenite from Pearlite(Materials, Metallurgy & Weldability)
• Active and Robust Contour Extraction by Biphased Genetic Algorithm (Special Issue on Computer Vision)
• Analysis of Laser Transformation Hardening Process of Hypoeutectoid Steel : 1st Report, Formulation and Computer Model for Coupled Analysis between Temperature Field and Structural Changes
• Theoretical Analysis of Laser Transformation Hardening Process of Hypoeutectoid Steel based on Kinetics
• Analysis of Heat Flow Coupled with Structural Change in Laser Transformation Hardening Process(Surface Processing)
• Computer Simulation on Structural Changes of Hypoeutectoid Steel in Laser Transformation Hardening Process
• Theoretical Analysis of Heat Flow and Structural Changes during Laser Transformation Hardening of Hypo-Eutectoid Steel(Physics, Process, Instrument & Measurement)
• Implementation in Hardware and Its Evaluation of Dual Lines Scanning Method : Perimeter Measurement by Dual Lines Scanning Method (Second Report)
• Algorithm of Dual Lines Scanning Method and Accuracy Improvement by Employing Rectangular Pixel : Perimeter Measurement by Dual Lines Scanning Method (First Report)
• Perimeter Measurement by Dual Lines Scanning Method : Implementation in Hardware and Its Evaluation of Dual Lines Scanning Method

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