M. Gryaznov, S. Shotin, V. Chuvildeev, A. N. Sysoev, D. N. Kotkov, A. Piskunov, N. Sakharov, A. V. Semenycheva, A. Murashov
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引用次数: 0
摘要
采用选择性激光熔化法制备了具有高强度特性(极限抗拉强度820 MPa)的非合金化钛VT1-0样品，该样品的抗拉强度超过了传统工艺的极限抗拉强度。为解决工业纯钛在医疗应用中替代钛合金的问题，采用选择性激光熔化和旋转锻压的方法对具有创记录力学性能(极限抗拉强度1350 MPa)的非合金化钛VT1-0进行了加工。这一数值超过了高强度Ti - 6% Al - 4% V合金的特性。在选择激光熔化的最佳模式下，高结晶速率所形成的细小分散的马氏体是导致非合金化钛VT1-0强度特性提高的原因。
Research of mechanical properties of unalloyed titanium processed by selective laser melting and rotary swaging
Samples of unalloyed titanium VT1-0 with high strength characteristics (ultimate tensile strength of 820 MPa), which exceed the values for this material manufactured using conventional technologies, were produced by selective laser melting. To solve the problem of substitution of titanium alloys with commercially pure titanium in medical applications, unalloyed titanium VT1-0 with record mechanical characteristics (ultimate tensile strength of 1350 MPa) was processed by selective laser melting and rotary swaging. This value exceeds the characteristics of the highstrength Ti – 6 % Al – 4 % V alloy. The fine-dispersed martensite formed as a result of high crystallization rates under optimal mode of selective laser melting is the reason for the strength characteristics increase of unalloyed titanium VT1-0.
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