Aluminium Loos in the process of ti-6Al-7Nb smelting

Beata Oleksiak; Leszek Blacha; Grzegorz Siwiec; Piotr Folega

doi:10.12776/ams.v19i4.174

Aluminium Loos in the process of ti-6Al-7Nb smelting

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In the paper, results of experimental smelting of the Ti-6Al-7Nb alloy in a vacuum induction furnace are presented. The experiments were performed at 5-1000 Pa and 1973-2023 K. For the analysed alloy, a significant impact of pressure on aluminium loss was observed. Pressure reduction in the device from 1000 Pa to 5 Pa was accompanied by Aluminium content decrease from the initial value of 5.5 % mass to a value even below 3.2 % mass. Moreover, aluminium elimination was enhanced when the smelting temperature increased. Additionally, values of a so-called evaporation coefficient (Ω) were determined. In terms of titanium and niobium, Ω_Al/Ti and Ω_Al/Nb values suggest that, thermodynamically, aluminium loss may result from its intense evaporation from the investigated alloy.

Original language	English
Pages (from-to)	247-253
Number of pages	7
Journal	Acta Metallurgica Slovaca
Volume	19
Issue number	4
DOIs	https://doi.org/10.12776/ams.v19i4.174
Publication status	Published - 2013

Keywords

Evaporation
Ti-Al-Nb alloys
VIM technology

ASJC Scopus subject areas

Metals and Alloys

Access to Document

10.12776/ams.v19i4.174

Cite this

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title = "Aluminium Loos in the process of ti-6Al-7Nb smelting",

abstract = "In the paper, results of experimental smelting of the Ti-6Al-7Nb alloy in a vacuum induction furnace are presented. The experiments were performed at 5-1000 Pa and 1973-2023 K. For the analysed alloy, a significant impact of pressure on aluminium loss was observed. Pressure reduction in the device from 1000 Pa to 5 Pa was accompanied by Aluminium content decrease from the initial value of 5.5 \% mass to a value even below 3.2 \% mass. Moreover, aluminium elimination was enhanced when the smelting temperature increased. Additionally, values of a so-called evaporation coefficient (Ω) were determined. In terms of titanium and niobium, ΩAl/Ti and ΩAl/Nb values suggest that, thermodynamically, aluminium loss may result from its intense evaporation from the investigated alloy.",

keywords = "Evaporation, Ti-Al-Nb alloys, VIM technology",

author = "Beata Oleksiak and Leszek Blacha and Grzegorz Siwiec and Piotr Folega",

year = "2013",

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language = "English",

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pages = "247--253",

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TY - JOUR

T1 - Aluminium Loos in the process of ti-6Al-7Nb smelting

AU - Oleksiak, Beata

AU - Blacha, Leszek

AU - Siwiec, Grzegorz

AU - Folega, Piotr

PY - 2013

Y1 - 2013

N2 - In the paper, results of experimental smelting of the Ti-6Al-7Nb alloy in a vacuum induction furnace are presented. The experiments were performed at 5-1000 Pa and 1973-2023 K. For the analysed alloy, a significant impact of pressure on aluminium loss was observed. Pressure reduction in the device from 1000 Pa to 5 Pa was accompanied by Aluminium content decrease from the initial value of 5.5 % mass to a value even below 3.2 % mass. Moreover, aluminium elimination was enhanced when the smelting temperature increased. Additionally, values of a so-called evaporation coefficient (Ω) were determined. In terms of titanium and niobium, ΩAl/Ti and ΩAl/Nb values suggest that, thermodynamically, aluminium loss may result from its intense evaporation from the investigated alloy.

AB - In the paper, results of experimental smelting of the Ti-6Al-7Nb alloy in a vacuum induction furnace are presented. The experiments were performed at 5-1000 Pa and 1973-2023 K. For the analysed alloy, a significant impact of pressure on aluminium loss was observed. Pressure reduction in the device from 1000 Pa to 5 Pa was accompanied by Aluminium content decrease from the initial value of 5.5 % mass to a value even below 3.2 % mass. Moreover, aluminium elimination was enhanced when the smelting temperature increased. Additionally, values of a so-called evaporation coefficient (Ω) were determined. In terms of titanium and niobium, ΩAl/Ti and ΩAl/Nb values suggest that, thermodynamically, aluminium loss may result from its intense evaporation from the investigated alloy.

KW - Evaporation

KW - Ti-Al-Nb alloys

KW - VIM technology

UR - https://www.scopus.com/pages/publications/84883819184

U2 - 10.12776/ams.v19i4.174

DO - 10.12776/ams.v19i4.174

M3 - Article

AN - SCOPUS:84883819184

SN - 1335-1532

VL - 19

SP - 247

EP - 253

JO - Acta Metallurgica Slovaca

JF - Acta Metallurgica Slovaca

IS - 4

ER -

Aluminium Loos in the process of ti-6Al-7Nb smelting

Abstract

Keywords

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