Fracture Toughness of Cast Al-Zn-Mg Alloys

材料科学技术（英文）, 1996, 12(3): 199-202.

Fracture Toughness of Cast Al-Zn-Mg Alloys

K.H. W.Seah(Dept. of Mech. Eng. , National University of Singapore , Singapore 0511)S. C. Sharma (To whom correspondence should be addressed)(Dept. of Mech. Eng. , R.V.College of Engineering , Bangalore-560-059 , Karnataka , India)

Compact tension specimens of as-cast Al-3Zn-2Mg and Al-7Zn-2Mg (in wt pct) alloys were subjected to fracture toughness tests at room temperature according to specification5 laid down in ASTM E-399-81. It was found that increasing the Zn content, grain refinement and increasing the solidification rate lead to an increase in the fracture toughness of the material.

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K.H. W.Seah(Dept. of Mech. Eng. National University of Singapore Singapore 0511)S. C. Sharma (To whom correspondence should be addressed)(Dept. of Mech. Eng. R.V.College of Engineering Bangalore-560-059 Karnataka India)
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K.H. W.Seah(Dept. of Mech. Eng. National University of Singapore Singapore 0511)S. C. Sharma (To whom correspondence should be addressed)(Dept. of Mech. Eng. R.V.College of Engineering Bangalore-560-059 Karnataka India)
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K.H. W.Seah(Dept. of Mech. Eng. National University of Singapore Singapore 0511)S. C. Sharma (To whom correspondence should be addressed)(Dept. of Mech. Eng. R.V.College of Engineering Bangalore-560-059 Karnataka India)
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K.H. W.Seah(Dept. of Mech. Eng. National University of Singapore Singapore 0511)S. C. Sharma (To whom correspondence should be addressed)(Dept. of Mech. Eng. R.V.College of Engineering Bangalore-560-059 Karnataka India)

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Fracture Toughness of Cast Al-Zn-Mg Alloys

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