RELATIONSHIP BETWEEN INDENTATION HARDNESS AND NORMAL ELASTICITY MODULUS IN TITANIUM ALLOYS AT HIGH TEMPERATURES (in Russian)
Temperature effects on hardness and normal modulus of elasticity of titanium, 5-component solid solution alpha titanium with Cr, Fs, Si, and B, and 6-component titanium with variable admixtures of aluminum (3.0, 4.5, 6.0, and 7.5 wt.%) were measured at room temperature to 1000 deg . The data show that soluble adroixtures of B, Cr, Fs, and Si increase the hardness and normal modulus of elasticity of a titanium. Aluminum is the most important element in strengthening the alloys at elevated temperatures. Titanium alloys with variable aluminum admixtures retain their high strength stability up to 500 to 600 deg , after which a sharp drop in the strength propenty is observed. The relationship between resistancs to plastic deformation and interatomic interactions, estimated by elasticity constants, becomes more pronounced at increased temperatures while the role of stractural strengthening factors is diminished. The normal modulus of elasticity and hardnsss for 5-component alpha -solution and 6-component alloys with variable aluminum contant was plotted at elevated temperatures. (R.V.J.)
- Research Organization:
- Baikov Inst. of Metallurgy, Academy of Sciences, USSR
- NSA Number:
- NSA-14-002754
- OSTI ID:
- 4228928
- Journal Information:
- Doklady Akad. Nauk S.S.S.R., Vol. Vol: 128; Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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