WEBBeta fleck is a troublesome segregation defect in many titanium alloys. It has previously been investigated by several authors and appears to have two formation mechanisms, one similar to that of “freckle” in steels and nickel-base alloys, the other arising in the “crystal rain” effect seen in conventional steel ingots.
Béla Fleck - Wikipedia
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Beta Fleck formation in Titanium Alloys | MATEC Web of …
WEBBeta fleck is a troublesome segregation defect in many titanium alloys. It has previously been investigated by several authors and appears to have two formation mechanisms, one similar to that of “freckle” in steels and nickel-base alloys, the other arising in the “crystal rain” effect seen in conventional steel ingots.
Towards β-fleck defect free additively manufactured titanium alloys by ...
WEBFeb 1, 2022 · This work investigates the formation of β-flecks in the high strength Ti-3Al-8V-6Cr-4Mo-4Zr (Beta-C/ASTM Grade 19) produced by Wire Arc Additive Manufacturing and explores whether the introduction of grain refiner (La 2 O 3) to the alloy can prevent the segregation defects from forming.
WEBBeta-flecks are localized defects, which contain a higher content of beta stabilizing elements than in the bulk. Beta-flecks have been found frequently in VT3-1 (Ti-6.5 mass.%Al-2.5 mass.%Mo-1.5 mass.%Cr-0.5 mass.%Fe-0.3 mass.%Si), VT-22 (Ti-5 mass.%Al-4.5 mass.%Mo-4.5 mass.%V-l mass.%Cr-l mass.%Fe), Ti-
WEBUse of high strength titanium alloys in lieu of steels reduces weight, avoids problematic coatings, and lowers maintenance requirements. Ti555 (also known as Ti555-3) is capable of favorable combinations of properties that have enabled the expanded use of titanium in aerospace applications.
Segregation Defects in VAR Titanium Alloys: I. Common Defects
WEBJun 27, 2022 · The following main types of segregation defects inherent in many titanium-based alloys are considered: zonal segregation (macrosegregation), tree-like structure (tree-like segregation), and β-flecks. The possible mechanisms of their formation are …
Beta Fleck and Segregation in Titanium Alloy Ingots - De Gruyter
WEBArticle Beta Fleck and Segregation in Titanium Alloy Ingots was published on December 1, 2006 in the journal High Temperature Materials and Processes (volume 25, issue 5-6).
Titanium Alloys: Part 1—Physical Metallurgy and Processing
WEBNov 12, 2016 · These solute-rich regions sometimes become clearly visible in materials heat-treated below but near the nominal β transus, and are known generally as “beta flecks”. Figure 5.9 shows examples of beta flecks: note the large prior β grains and the lower volume fraction of α (the light-etching phase) in Fig. 5.9c. The segregated areas ...
Beta Fleck formation in Titanium Alloys | MATEC Web of …
WEBGeneration of Microstructural Gradients for Improved Mechanical Properties via Thermo-Hydrogen Treatment of the Metastable Beta Titanium Alloys Beta CTM and Ti 10V-2Fe-3Al MATEC Web of Conferences 321, 12017 (2020)