反応焼結したＴｉＡｌ金属間化合物のミクロ組織と破壊特性
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Microstructure and fracture characteristics of TiAl intermetallic compound fabricated by reactive sintering process was investigated by microstructural observations, tensile tests and fracture toughness tests. The greater volume fraction of equiaxed γ grain gives greater elongation, and smaller 0.2% proof stress and tensile strength while the effect of the volume fraction of equiaxed γ grain on the fracture toughness is significantly small in duplex structural materials. The greater lamellar grain size gives smaller 0.2% proof stress, tensile strength and elongation while that gives greater fracture toughness in fully lamellar structural materials. The balance of strength and fracture toughness in this reactive sintering TiAl is the best in coarser fully lamellar structure, and is superior to that of the cast TiAl at a greater strength level.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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