A Study on the Zener-Holloman Parameter and Fracture Toughness of an Nb-Particles-Toughened TiAl-Nb Alloy

Li, Jianbo; Liu, Bin; Wang, Yan; Tang, Shan; Liu, Yong; Lu, Xihong

doi:10.3390/met8040287

Cited by 5 publications

(2 citation statements)

References 33 publications

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“…The Zener-Hollomon parameter decreases with a decreasing strain rate and an increasing temperature. In the actual industrial production, to avoid the occurrence of cracks, low Z conditions (lower strain rates and higher temperatures) are usually preferred; however, when the deformation rate is too low, the temperature drop is serious, which is harmful for deformation [28].…”

Section: Summary: 6xxx Aluminum Alloys For a High-speed Extrusionmentioning

confidence: 99%

The High-Speed 6xxx Aluminum Alloys in Shape Extrusion Industry

Hubicki¹,

Richert²

2021

Advanced Aluminium Composites and Alloys

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This chapter describes and analyzes the 6xxx aluminum alloys used in the shape extrusion sector dedicated to automotive and construction industry. The division and application of 6xxx aluminum alloys are performed. The precipitation hardening of 6xxx (Al-Mg-Si) alloys is presented as these alloys easily undergo deformation and present the potential for new kinds of alloys for high-speed extrusion. The mechanisms of strengthening are shown with the evolution of precipitation sequences. Also some examples of industry applications of 6xxx aluminum alloys are presented.

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Section: Summary: 6xxx Aluminum Alloys For a High-speed Extrusionmentioning

confidence: 99%

The High-Speed 6xxx Aluminum Alloys in Shape Extrusion Industry

Hubicki¹,

Richert²

2021

Advanced Aluminium Composites and Alloys

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“…Longchao Cao [30] and Pavel Podany [31] researched the microstructure and the local mechanical properties of the dissimilar butt joints. Jianbo Li [32] studied the fracture toughness near the fusion line (HAZ and fusion line) of the dissimilar material and, in addition, found the crack deflection. The HAZ experimental results demonstrated the crack deflection when the CT specimens were tested.…”

Section: Amendment Of Haz Fracture Toughnessmentioning

confidence: 99%

Fracture Toughness Calculation Method Amendment of the Dissimilar Steel Welded Joint Based on 3D XFEM

Qian

Zhao

2019

Metals

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The dissimilar steel welded joint is divided into three pieces, parent material–weldmetal–parent material, by the integrity identification of BS7910-2013. In reality, the undermatchedwelded joint geometry is dierent: parent material–heat aected zone (HAZ)–fusion line–weld metal.A combination of the CF62 (parent material) and E316L (welding rod) was the example undermatchedwelded joint, whose geometry was divided into four pieces to investigate the fracture toughness of thejoint by experiments and the extended finite element method (XFEM) calculation. The experimentalresults were used to change the fracture toughness of the undermatched welded joint, and the XFEMresults were used to amend the fracture toughness calculation method with a new definition of thecrack length. The research results show that the amendment of the undermatched welded jointgeometry expresses more accuracy of the fracture toughness of the joint. The XFEM models wereverified as valid by the experiment. The amendment of the fracture toughness calculation methodexpresses a better fit by the new definition of the crack length, in accordance with the crack routesimulated by the XFEM. The results after the amendment coincide with the reality in engineering.

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