Misorientation characteristics and textural changes induced by dense twins in high-purity Ti sheet after small strain rolling

Dai, Jiahong; Zeng, Lingqiu; Li, Zhijun; Chai, Linjiang; Zheng, Zhi-Ying; Wu, Hao; Murty, K. Linga; Guo, Ning

doi:10.1007/s11431-019-9555-9

Cited by 10 publications

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“…With respect to those low misorientation angles (2°-8°), their corresponding rotation axes concentrate on 〈0001〉. Considering the deformation characteristics of HCP α-Ti, the formation of such low angle misorientation should be closely related to active prismatic slip operated during forging [29][30][31]. Figure 7 presents a further analysis of only the bulk α p grains in Fig.…”

Section: Resultsmentioning

confidence: 98%

Typical Microstructural Characteristics of Ti–5Al–5Mo–5V–3Cr–1Fe Metastable β Ti Alloy Forged in α + β Region

Zheng

Chai

Xiang

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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In this study, typical microstructural characteristics of a metastable β Ti alloy (Ti-5Al-5Mo-5V-3Cr-1Fe) forged in a dual-phase region (strain of 54% at 820 °C) were investigated in detail by the combined use of X-ray diffraction, energy dispersive spectroscopy, electron channeling contrast imaging and electron backscatter diffraction techniques. Results show that the microstructure of the forged alloy is composed of bulk α grains, α plates and β matrix. The bulk α grains correspond to retained primary α phase (α p , average grain size ~ 2.4 μm), while the α plates are secondary α phase (α s , width ~ 70 nm) precipitated from the β matrix during air cooling. During forging, the β matrix experiences dynamic recovery with many subgrains and significant orientation gradients formed. Analyses of the orientation relationship between the α and β phases show that the Burgers orientation relationship is not maintained between some α p and β phases, which should be related to thermal deformation-induced changes of their orientations. In contrast, all of the α s plates are found to maintain well the Burgers orientation relationship with the β phase.

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Section: Resultsmentioning

confidence: 98%