A study of the microstructure and hardness of two titanium alloys: Commercially pure and Ti–6Al–4V

• Published in: Journal of alloys and compounds Vol. 486; no. 1; pp. 162 - 167
• Main Authors: Poondla, N., Srivatsan, T.S., Patnaik, A., Petraroli, M.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 03-11-2009; Elsevier
• Subjects: Alloys; Cross-disciplinary physics: materials science; rheology; Deformation, plasticity, and creep; Exact sciences and technology; Hardness; Macrohardness; Materials science; Microhardness; Microstructure; Physics; Polished; Titanium; Titanium alloy; Titanium base alloys; Treatment of materials and its effects on microstructure and properties; Titanium alloy; Macrohardness; Microstructure; Microhardness; Titanium alloys; Optical microscopy; Annealing; Material processing; Mechanical properties; Metallography; Chemical composition; Hardness
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2009.06.172

In this paper, the microstructure and hardness of two titanium alloys was determined and the results are presented and briefly discussed. Samples of the alloy for microstructural examination were prepared from the as-provided stock using standard metallographic procedures and then examined in a low magnification light optical microscope. Both microhardness and macrohardness measurements were made across the polished surfaces of the two titanium materials. Both the microhardness and macrohardness of the Ti–6Al–4V alloy was noticeably higher than the commercially pure counterpart. The intrinsic influence of alloy composition and secondary processing, i.e., annealing, on microstructural development is presented and hardness of the two alloys is highlighted. The role of microstructure in governing the hardness of the two titanium materials is discussed.