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Title: Effect of α/β Forging on Microstructure and Texture Inhomogeneity in a Ti-1023 Forged Disk

Journal Article · · Materials Research
ORCiD logo [1];  [2];  [1];  [1];  [3];  [3];  [4];  [5]
  1. Northeastern Univ., Shenyang (China)
  2. Northeastern Univ., Shenyang (China); Univ. of Science and Technology, Beijing (China)
  3. Beijing Inst. of Aeronautical Materials, Beijing (China)
  4. Beijing Inst. of Technology, Beijing (China)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
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The microstructure and texture distribution of a Ti-1023 forged disk were investigated by scanning electron microscopy and synchrotron-based high-energy X-ray diffraction. The finite element method was used to simulate temperature and strain distribution in order to investigate the relationship of the α/β forging process with microstructure and texture distribution. A bimodal microstructure and rolling textures with large inhomogeneity were observed in the disk. A plate-like and a necklace-like morphology and volume fraction variations of the primary α phase were observed in different regions with different forging conditions, such as temperature, deformation, position, and high density of flow lines. Texture sharpness distribution of the β phase was in good agreement with the strain distribution, which suggests deformation may play the most important part in the texture inhomogeneity. A weak cube texture was obtained near the center of the disk, and fiber textures were found near the rim of the disk. The primary a phase also exhibited a transverse texture, which is favored by large deformation.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
Fundamental Research Funds for the Central Universities; National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1615767
Journal Information:
Materials Research, Journal Name: Materials Research Journal Issue: suppl 2 Vol. 22; ISSN 1516-1439
Publisher:
SciELOCopyright Statement
Country of Publication:
United States
Language:
English

References (8)

Titanium Alloys for Aerospace Applications journal June 2003
Modification of alpha morphology in Ti-6Al-4V by thermomechanical processing journal November 1986
On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium journal May 1934
Texture and microtexture variations in a near-α titanium forged disk of bimodal microstructure journal April 2012
The evolution of microtexture and macrotexture during subtransus forging of Ti–10V–2Fe–3Al journal August 2008
Powder metallurgy of titanium – past, present, and future journal August 2017
Precision investment casting: A state of art review and future trends journal August 2016
A Review of Metastable Beta Titanium Alloys journal June 2018

Linked Research (2)

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Related Subjects

36 MATERIALS SCIENCE
finite element method
forging
microstructure
synchrotron-based high-energy X-ray diffraction
texture