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Intergranular Attack of Low Carbon S...

Lu, Mingquan,

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Intergranular Attack of Low Carbon Steel in Molten Aluminum Chloride /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Intergranular Attack of Low Carbon Steel in Molten Aluminum Chloride // Mingquan Lu.
作者:	Lu, Mingquan,
面頁冊數:	1 electronic resource (123 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
Contained By:	Dissertations Abstracts International85-12B.
標題:	Materials science. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30991166
ISBN:	9798383059845

Intergranular Attack of Low Carbon Steel in Molten Aluminum Chloride /
Lu, Mingquan,

Intergranular Attack of Low Carbon Steel in Molten Aluminum Chloride /Mingquan Lu. - 1 electronic resource (123 pages)

Source: Dissertations Abstracts International, Volume: 85-12, Section: B.

AISI 1018 carbon steel exhibits intergranular attack in molten aluminum chloride in actual engineering applications. To elucidate a corrosion mechanism explaining such a phenomenon, corrosion exposure tests have been conducted to investigate the effects of materials processing, chemical composition, and molten salt cations on the severity of corrosion. To that end, pure iron, A106, and AISI 1018 carbon steel have been exposed to pure AlCl3 and AlCl3-FeCl3 melts in normalized and as-received conditions. Additional tests have been done with longer corrosion durations and with molten AlCl3-FeCl2 salt. A novel corrosion quantification methodology is employed. Intergranular corrosion is observed in both 1018 and A106 carbon steels in all the salts whereas pure iron only shows pitting. Normalization and cold work in the as-received condition have varying effects on the corrosion depths of pure iron, 1018 and A106 carbon steels. In 1018, relative to exposure to pure AlCl3, addition of FeCl3 significantly accelerates the corrosion rate whereas addition of FeCl2 substantially modifies the corrosion morphology. The grain boundary microchemistry of 1018 carbon steel is examined with in-situ fracture Auger spectroscopy where molybdenum and carbon segregation are found, and a mechanism is proposed to explain the present corrosion phenomenon.

English

ISBN: 9798383059845Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

Aluminum chloride

Intergranular Attack of Low Carbon Steel in Molten Aluminum Chloride /
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520 $a AISI 1018 carbon steel exhibits intergranular attack in molten aluminum chloride in actual engineering applications. To elucidate a corrosion mechanism explaining such a phenomenon, corrosion exposure tests have been conducted to investigate the effects of materials processing, chemical composition, and molten salt cations on the severity of corrosion. To that end, pure iron, A106, and AISI 1018 carbon steel have been exposed to pure AlCl3 and AlCl3-FeCl3 melts in normalized and as-received conditions. Additional tests have been done with longer corrosion durations and with molten AlCl3-FeCl2 salt. A novel corrosion quantification methodology is employed. Intergranular corrosion is observed in both 1018 and A106 carbon steels in all the salts whereas pure iron only shows pitting. Normalization and cold work in the as-received condition have varying effects on the corrosion depths of pure iron, 1018 and A106 carbon steels. In 1018, relative to exposure to pure AlCl3, addition of FeCl3 significantly accelerates the corrosion rate whereas addition of FeCl2 substantially modifies the corrosion morphology. The grain boundary microchemistry of 1018 carbon steel is examined with in-situ fracture Auger spectroscopy where molybdenum and carbon segregation are found, and a mechanism is proposed to explain the present corrosion phenomenon.
546 $a English
590 $a School code: 0185
650 4 $a Materials science. $3 543314
650 4 $a Physical chemistry. $3 1981412
650 4 $a Inorganic chemistry. $3 3173556
650 4 $a Analytical chemistry. $3 3168300
653 $a Aluminum chloride
653 $a Intergranular corrosion
653 $a Low carbon steel
653 $a Molten salt
653 $a AISI 1018 carbon steel
690 $a 0794
690 $a 0488
690 $a 0486
690 $a 0494
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