Creep Fracture of Al-Mg and Mg-Al Alloys under a Condition of Constant Stress(Student Poster Session)

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概要

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• There is a large difference in the atomic size between aluminum and magnesium atoms. They are mutually solved in solid solution and make the stronger alloys at high temperatures. The crystal structure of aluminum alloy is face centered cubic and that of magnesium alloy hexagonal. Both alloys, A5083 aluminum (Al-Mg) and AZ91 magnesium (Mg-Al) alloys were tested under a condition of constant stress in tensile at high temperatures. The creep tests were conducted until the rupture of the specimens. The creep curves were discussed from the viewpoints of the strain rate and the creep life. Both alloys do not present the steady state creep, of which the strain rate is constant against the creep time and the creep strain. The simple relationship between the minimum creep rate and the creep life is observed for both alloys. The Monkman-Grant constant, which is the product of them, is about unity for Al-Mg alloy and less than unity for Mg-Al alloy.

• 一般社団法人日本機械学会の論文
• 2001-10-20

著者

• Ishikawa Keisuke

  Toyo University Department Of Mechanical Engineering

• ISHIKAWA Fumitoshi

  Toyo University, Department of Mechanical Engineering

• KIDO Kentarou

  Toyo University, Department of Mechanical Engineering

• KOBAYASHI Yasuo

  Toyo University, Department of Mechanical Engineering

• Kido Kentarou

  Toyo University Department Of Mechanical Engineering

• Ishikawa Fumitoshi

  Toyo University Department Of Mechanical Engineering

• Kobayashi Yasuo

  Toyo University Department Of Mechanical Engineering

関連論文

• Creep Fracture of Al-Mg and Mg-Al Alloys under a Condition of Constant Stress(Student Poster Session)
• SA-08-1(024) Time dependent flow behavior of pure aluminum and aluminum-magnesium alloy under a constant stress condition(Flaw Progress & Failure Mechanism 1)

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