Effect of V or Zr addition on the mechanical properties of the mechanically alloyed Al-8wt%Ti alloys

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/S0956-716X(99)80012-0· OSTI ID:6999499

Moon, I H; Lee, J H; Lee, K M ^[1]; Kim, Y D ^[2]

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1. Hanyang Univ., Seoul (Korea, Republic of). Dept. of Materials Engineering
2. KIST, Seoul (Korea, Republic of). Div. of Metals

Mechanical alloying (MA) of Al-Ti alloy, being a solid state process, offers the unique advantage of producing homogeneous and fine dispersions of thermally stable Al[sub 3]Ti phase, where the formation of the fine Al[sub 3]Ti phase by the other method is restricted from the thermodynamic viewpoint. The MA Al-Ti alloys show substantially higher strength than the conventional Al alloys at the elevated temperature due to the presence of Al[sub 3]Ti as well as Al[sub 4]C[sub 3] and Al[sub 2]O[sub 3], of which the last two phases were introduced during MA process. The addition of V or Zr to Al-Ti alloy was known to decrease the lattice mismatch between the intermetallic compound and the aluminum matrix, and such decrease in lattice mismatching can influence positively the high temperature mechanical strength of the MA Al-Ti by increasing the resistance to dispersoid coarsening at the elevated temperature. In the present study, therefore, the mechanical behavior of the MA Al-Ti-V and Al-Ti-Zr alloys were investigated in order to evaluate the effect of V or Zr addition on the mechanical properties of the MA Al-8Ti alloy at high temperature.

• OSTI ID: 6999499
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 32:1; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
DATA
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
METALS
NUMERICAL DATA
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSITION ELEMENTS
VANADIUM
VANADIUM ALLOYS
ZIRCONIUM
ZIRCONIUM ALLOYS