EFFECT OF HEAT TREATMENT CONDITIONS ON THE MORPHOLOGY OF α PHASE AND MECHANICAL PROPERTIES IN Ti-10V-2Fe-3Al TITANIUM ALLOY

被引:11
作者
Bogucki, R. [1 ]
Mosor, K. [1 ]
Nykiel, M. [1 ]
机构
[1] Cracow Univ Technol, Inst Mat Sci, PL-31864 Krakow, Poland
关键词
phase transformations; microstructure; mechanical properties; beta-phase; alpha-phase; INDUCED MARTENSITIC-TRANSFORMATION; COARSE 2ND-PHASE PARTICLES; BETA-GRAIN-SIZE; FRACTURE-TOUGHNESS; MICROSTRUCTURE REFINEMENT; VOLUME FRACTION; DEFORMATION; KINETICS; RANGE;
D O I
10.2478/amm-2014-0217
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The influence of heat treatment on the microstructure and mechanical properties was studied in the Ti-10V-2Fe-3Al titanium alloy for two heat treatment schemes (alpha + beta) and beta + (beta + alpha), which resulted in different morphologies of the alpha phase. Scheme I resulted in the alpha-phase of globular morphology, whose volume fraction did not change much during annealing. Scheme II led to obtaining a needle-like alpha-phase, whose amount increased together with heating time. The phenomenon of stress-induced martensitic transformation was observed in the material with needle-like morphology annealed for 15 and 30 min. Longer times of annealing effected in the decay of that transformation, provided the volume fraction of alpha-phase exceeded 50%.
引用
收藏
页码:1269 / 1273
页数:5
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