2016
DOI: 10.3390/met6060131
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Melt Protection of Mg-Al Based Alloys

Abstract: This paper reports the current status of Mg melt protection in view to identify near-future challenges, but also opportunities, for Mg melt protection of Mg-Al based alloys. The goal is to design and manufacture sustainable Mg alloys for resource efficiency, recycling and minimising waste. Among alternative cover gas technologies for Mg melt protection other than SF 6 : commercially available technologies containing-HFC-134a, fluorinated ketone and dilute SO 2 -and developed technologies containing solid CO 2 … Show more

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Cited by 16 publications
(7 citation statements)
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“…Similar approaches were studied in some works [30,31], in which it was shown that reactive gases (e.g. CO 2 ) as well as micro-additions, like carbon used in the thixomolding process, can lead to grain refinement and the formation of secondary phases [30,31,27]. Balart et al [30] suggested the presence of inoculants, such as MgO and Al 4 C 3 .…”
Section: Introductionmentioning
confidence: 84%
See 1 more Smart Citation
“…Similar approaches were studied in some works [30,31], in which it was shown that reactive gases (e.g. CO 2 ) as well as micro-additions, like carbon used in the thixomolding process, can lead to grain refinement and the formation of secondary phases [30,31,27]. Balart et al [30] suggested the presence of inoculants, such as MgO and Al 4 C 3 .…”
Section: Introductionmentioning
confidence: 84%
“…To eliminate their influence and the possibility of Mg ignition, the process window was decreased to a semi-solid temperature range. Similar approaches were studied in some works [30,31], in which it was shown that reactive gases (e.g. CO 2 ) as well as micro-additions, like carbon used in the thixomolding process, can lead to grain refinement and the formation of secondary phases [30,31,27].…”
Section: Introductionmentioning
confidence: 85%
“…These include chemical activity [16][17][18], low electrode potential [19][20][21], and limited corrosion resistance [22]. Among various magnesium alloys, Mg-Al-RE system alloys [23][24][25] stand out owing to better performance than those of the conventional magnesium alloys. However, it is important to note that Mg-Al-RE system alloys exhibit relatively poor corrosion resistance [16,26] compared to those of pure magnesium and Mg-Al alloys.…”
Section: Introductionmentioning
confidence: 99%
“…Чаще всего защитная атмосфера состоит из смеси двух газов -газа-носителя, обычно инертного по отношению к магниевому расплаву, и химически активного газа, который изменяет состав оксидной плены магниевого расплава и тем самым повышает ее защитные свойства. В качестве газов-носителей обычно применяют аргон (Ar) [1][2][3][4][5][6], азот (N 2 ) [7][8][9][10][11][12][13], углекислый газ (CO 2 ) [13][14][15][16][17][18], сухой или синтетический воздух (20 об.% O 2 + + 80 об.% N 2 ) [19][20][21][22][23][24][25][26][27][28]. К активным газам, используемым при плавке магниевых сплавов, относят шестифтористую серу (SF 6 ) [1][2][3][4][19][20][21], диоксид серы (SO 2 ) [7][8][9][10][11][12]28], фреон HFC-R134a [22-26, 28, 29], BF 3 [13,18], NF 3…”
Section: Introductionunclassified
“…В качестве газов-носителей обычно применяют аргон (Ar) [1][2][3][4][5][6], азот (N 2 ) [7][8][9][10][11][12][13], углекислый газ (CO 2 ) [13][14][15][16][17][18], сухой или синтетический воздух (20 об.% O 2 + + 80 об.% N 2 ) [19][20][21][22][23][24][25][26][27][28]. К активным газам, используемым при плавке магниевых сплавов, относят шестифтористую серу (SF 6 ) [1][2][3][4][19][20][21], диоксид серы (SO 2 ) [7][8][9][10][11][12]28], фреон HFC-R134a [22-26, 28, 29], BF 3 [13,18], NF 3 [19] и другие соединения [13,18,…”
Section: Introductionunclassified