Effect of heat treatment on the microstructure, microhardness and impact toughness of TC11 and TC17 linear friction welded joint

Zhao, Ping; Chen, Wei; Li, Yan; Tao, Jun; Chuanchen, Zhang; Xiao, Xudong; Zhang, Min

doi:10.1016/j.msea.2020.140496

Cited by 25 publications

(1 citation statement)

References 33 publications

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“…Ti–6.5Al–3.5Mo–1.5Zr–0.3Si (TC11) titanium alloy is a typical (α + β) titanium alloy, which is widely used as a blade subjected to high operating temperature, while Ti–5Al–2Sn–2Zr–4Mo–4Cr (TC17) is often used as disk subjected to high stresses. [ 6 ] However, the conventional manufacturing process of these components inevitably results in wasting of material and greatly increasing cost. Additive manufacturing (AM) is an advanced technology that allows direct fabrication of near‐net components, which provides a potential approach to manufacture dual‐alloy components with low‐cost rapidly.…”

Section: Introductionmentioning

confidence: 99%

Effects of Trace Boron Addition and Different Arc Types on Microstructure and Mechanical Properties of TC11/TC17 Dual Alloy Fabricated by Wire Arc Additive Manufacturing

et al. 2022

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Wire arc additive manufacturing (WAAM) provides an efficient and low‐cost potential for manufacturing TC11/TC17 dual titanium alloy. In this work, six deposition samples were fabricated for the test of microstructure and mechanical properties by the combination of trace boron addition and different arc types (direct current (DC), high frequency pulsed current (HC), low frequency pulsed current (LC)). Results show that the epitaxial growth β columnar grains were formed except for the combination of low frequency pulsed current and trace boron addition (LCB). A special microstructure of coarser α phases surrounding thin α phases was formed by the effect of LC arc or trace boron addition. Some TiB particles exhibited a specific orientation relationship with surrounding α phases, but not all: (0001)α||(001)TiB and <11‐20>α||[010]TiB. About mechanical properties, the elongation decreased with trace boron addition, and comprehensive mechanical properties of LC method was better than that of DC or HC methods whether it contained trace boron or not, with tensile strength of 1057 MPa and elongation of 14.4% in the longitudinal direction. Meanwhile, the strength of LCB group is highest than that of other groups, which is caused by the refined β grains and the uniform distribution of TiB particles.

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Section: Introductionmentioning

confidence: 99%