Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61

Ai Serizawa, Yosuke Iwase, Tomohito Sudare, Nagahiro Saito, Naosumi Kamiyama, Takahiro Ishizaki

Research output: Contribution to journalArticle

Abstract

Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61 (AZX612) were investigated. An extruded and twin-rolled casting magnesium alloys AZX612 were used with a view to better understanding the relationship between microstructure and these properties. The microstructures of the magnesium alloys were characterized by optical microscope (OM), X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive X-ray spectroscopy (EDS). The shapes of compounds in the alloys observed by EDS were significantly different; spherical distribution in grain for the extruded magnesium alloy and preferential formation on grain boundaries for the twin-rolled casting magnesium alloy. The different microstructure of the two alloys resulted in showing the different properties. Immersion test in 5 mass% NaCl aqueous solution revealed that the corrosion rates for the extruded and twin-rolled casting magnesium alloys AZX612 were estimated to be 6.5 and 15.0 mm/year, respectively, indicating that the corrosion resistance of the extruded magnesium alloys AZX612 were more superior than that of the twin-rolled casting one. On the contrary, the heat resistance of the alloy did not change depending on the microstructure.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalKeikinzoku/Journal of Japan Institute of Light Metals
Volume66
Issue number1
DOIs
Publication statusPublished - 2016

Fingerprint

Magnesium alloys
Heat resistance
Corrosion resistance
Microstructure
Casting
Energy dispersive spectroscopy
Corrosion rate
Grain boundaries
Microscopes
X ray diffraction
Scanning electron microscopy

Keywords

  • Combustion-resistant magnesium alloy
  • Compounds
  • Corrosion resistance
  • Heat resistance
  • Microstructure

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61. / Serizawa, Ai; Iwase, Yosuke; Sudare, Tomohito; Saito, Nagahiro; Kamiyama, Naosumi; Ishizaki, Takahiro.

In: Keikinzoku/Journal of Japan Institute of Light Metals, Vol. 66, No. 1, 2016, p. 9-14.

Research output: Contribution to journalArticle

@article{94e628caedbc45b5942aa0b7f29d936e,
title = "Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61",
abstract = "Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61 (AZX612) were investigated. An extruded and twin-rolled casting magnesium alloys AZX612 were used with a view to better understanding the relationship between microstructure and these properties. The microstructures of the magnesium alloys were characterized by optical microscope (OM), X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive X-ray spectroscopy (EDS). The shapes of compounds in the alloys observed by EDS were significantly different; spherical distribution in grain for the extruded magnesium alloy and preferential formation on grain boundaries for the twin-rolled casting magnesium alloy. The different microstructure of the two alloys resulted in showing the different properties. Immersion test in 5 mass{\%} NaCl aqueous solution revealed that the corrosion rates for the extruded and twin-rolled casting magnesium alloys AZX612 were estimated to be 6.5 and 15.0 mm/year, respectively, indicating that the corrosion resistance of the extruded magnesium alloys AZX612 were more superior than that of the twin-rolled casting one. On the contrary, the heat resistance of the alloy did not change depending on the microstructure.",
keywords = "Combustion-resistant magnesium alloy, Compounds, Corrosion resistance, Heat resistance, Microstructure",
author = "Ai Serizawa and Yosuke Iwase and Tomohito Sudare and Nagahiro Saito and Naosumi Kamiyama and Takahiro Ishizaki",
year = "2016",
doi = "10.2464/jilm.66.9",
language = "English",
volume = "66",
pages = "9--14",
journal = "Keikinzoku/Journal of Japan Institute of Light Metals",
issn = "0451-5994",
publisher = "Keikinzoku Gakkai/Japan Institute of Light Metals",
number = "1",

}

TY - JOUR

T1 - Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61

AU - Serizawa, Ai

AU - Iwase, Yosuke

AU - Sudare, Tomohito

AU - Saito, Nagahiro

AU - Kamiyama, Naosumi

AU - Ishizaki, Takahiro

PY - 2016

Y1 - 2016

N2 - Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61 (AZX612) were investigated. An extruded and twin-rolled casting magnesium alloys AZX612 were used with a view to better understanding the relationship between microstructure and these properties. The microstructures of the magnesium alloys were characterized by optical microscope (OM), X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive X-ray spectroscopy (EDS). The shapes of compounds in the alloys observed by EDS were significantly different; spherical distribution in grain for the extruded magnesium alloy and preferential formation on grain boundaries for the twin-rolled casting magnesium alloy. The different microstructure of the two alloys resulted in showing the different properties. Immersion test in 5 mass% NaCl aqueous solution revealed that the corrosion rates for the extruded and twin-rolled casting magnesium alloys AZX612 were estimated to be 6.5 and 15.0 mm/year, respectively, indicating that the corrosion resistance of the extruded magnesium alloys AZX612 were more superior than that of the twin-rolled casting one. On the contrary, the heat resistance of the alloy did not change depending on the microstructure.

AB - Effect of microstructure on corrosion resistance and heat resistance of flame-resistant Ca-added magnesium alloy AZ61 (AZX612) were investigated. An extruded and twin-rolled casting magnesium alloys AZX612 were used with a view to better understanding the relationship between microstructure and these properties. The microstructures of the magnesium alloys were characterized by optical microscope (OM), X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive X-ray spectroscopy (EDS). The shapes of compounds in the alloys observed by EDS were significantly different; spherical distribution in grain for the extruded magnesium alloy and preferential formation on grain boundaries for the twin-rolled casting magnesium alloy. The different microstructure of the two alloys resulted in showing the different properties. Immersion test in 5 mass% NaCl aqueous solution revealed that the corrosion rates for the extruded and twin-rolled casting magnesium alloys AZX612 were estimated to be 6.5 and 15.0 mm/year, respectively, indicating that the corrosion resistance of the extruded magnesium alloys AZX612 were more superior than that of the twin-rolled casting one. On the contrary, the heat resistance of the alloy did not change depending on the microstructure.

KW - Combustion-resistant magnesium alloy

KW - Compounds

KW - Corrosion resistance

KW - Heat resistance

KW - Microstructure

UR - http://www.scopus.com/inward/record.url?scp=85010950576&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010950576&partnerID=8YFLogxK

U2 - 10.2464/jilm.66.9

DO - 10.2464/jilm.66.9

M3 - Article

AN - SCOPUS:85010950576

VL - 66

SP - 9

EP - 14

JO - Keikinzoku/Journal of Japan Institute of Light Metals

JF - Keikinzoku/Journal of Japan Institute of Light Metals

SN - 0451-5994

IS - 1

ER -