Transactions of Materials and Heat Treatment

Title：Process optimization and numerical simulation of forging for large size TC4 forgings

Authors： Cui Wenjun Wang Hai Shang Boping Fan Yajun Chen Zhihong Cao Jimin

Unit： Xi'an Saite Simai Titanium Industry Co. Ltd.

KeyWords： forging process β transformation heat treatment TC4 titanium alloy FEM

ClassificationCode：

year,vol(issue):pagenumber：2014,39(10):136-139

Abstract：

Titanium, with outstanding performance, has rapid development in the field of application of aerospace, ships, petrochemicals, etc., and gradually replaces stainless steel and some non-ferrous metals in many fields, so it is necessary to study the forging process for titanium and its alloys. The effects of forging process before and after improvement on the microstructure of forgings were studied. Compared the metallographic structure of stock obtained from actual forgings with simulation experiments obtained by Deform-3D, the information of the stress, strain and metal flow in forging process were obtained. The results show that the microstructure inhomogeneous of large-size bars can be improved by employing the β transformation heat treatment with a quenching subsequently and changing the type of forging process, the homogeneous microstructure with fine spherality or short rhabditiform α structure was obtained, which makes the subsequent processing TC4 bars have good mechanical performances.

Funds：

陕西省重大科技创新专项资金计划项目（2011ZKC05-13）

崔文俊（1990-），男，学士，助理工程师

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