Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7975256 | Materials Science and Engineering: A | 2016 | 5 Pages |
Abstract
Based on previous Ti-Al-Cr-Mn quaternary system thermodynamic database, a novel near-α titanium alloy Ti-6.0Al-4.5Cr-1.5Mn alloy was designed and successfully prepared by the water-cooled copper crucible. Microscopic observation showed that both as-cast and annealing status consist of α phase, which coincides with the theoretical expectation. The mechanical properties at room temperature were measured and this alloy possesses good mechanical properties, its average yield-strength reaches 1051.5 MPa and tensile-strength is up to 1091.2 MPa while its average elongation is just 8.3%. Compared with the TA15, it has better mechanical strength and worse elongation. In the new alloy Laves phase Cr2Ti were detected by XRD pattern and TEM, which may cause the alloy's poor plasticity.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Hong-bin Wang, Shu-sen Wang, Peng-yue Gao, Tao Jiang, Xiong-gang Lu, Chong-he Li,