Effect of Surface Strain to Hydroxide Layer Formation on High-Pressure Die Casting Magnesium Alloy

被引：0
作者：
Suzuki D. [1 ]
Yatsushiro K. [1 ]
Sano M. [1 ]
Mitsui Y. [1 ]
机构：
[1] Yamanashi Industrial Technology Center, Ohtsu, Kofu
来源：
Zairyo/Journal of the Society of Materials Science, Japan | 2023年 / 72卷 / 04期
关键词：
Corrosion resistance; Hydroxide magnesium; Magnesium alloy; Magnesium die casting; X-ray diffraction; X-ray stress measurement;
D O I：
10.2472/JSMS.72.332
中图分类号：
学科分类号：
摘要：
Magnesium hydroxide layer improve corrosion resistance of magnesium alloys. Nonuniform strain on magnesium alloys surface was reported that affected to layer formation and corrosion resistance properties. Hydroxide layer formed to high pressure die cast ASTM AZ91D magnesium alloy, then investigated to correlation between hydroxide layer formation and residual stress and strain distribution on alloy surface which were measured by X-ray. Strain distribution was evaluated by full width half maximum (FWHM) value. Formed hydroxide layer was well compatible with FWHM distribution in as cast specimen. Heat treated for homogenization was carried out to inspection for correlation FWHM. FWHM was significantly lowering by heat treatment. Hydroxide layer tends to thin where FWHM value was low, therefore correlation between nonuniform strain and hydroxide layer formation was found out. ©2023 The Society of Materials Science, Japan.
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页码：332 / 338
页数：6
相关论文
共 13 条
  • [1] Sakamoto M., History of the flame-retardant m agnesium alloy, Journal of Japan Institute of L ight Metals, 66, 5, pp. 240-245, (2016)
  • [2] Yamada K., Corrosion properties and coating of magnesium alloys, Journal of the Surface Finis hing Society of Japan, 71, 3, pp. 224-232, (2020)
  • [3] Nanba S., Chemical conversion treatment of m agnesium alloy, Journal of the Surface Finishin g Society of Japan, 71, 3, pp. 219-213
  • [4] Kamiyama N., Ishizaki T., Preparation of corrosion resistant film on magnesium alloy by steam coating, Journal of Japan Institute of Li ght Metals, 64, 12, pp. 638-642, (2014)
  • [5] Kamiyama N., Shiratori R., Yamamoto E., Ki guchi T., Ishizaki T., Effect of the solution pH as steam sources on the corrosion resistance of the film formed on mg alloy by steam coating, Journal of Flux Growth, 10, 2, pp. 55-59, (2015)
  • [6] Miura K., Kobayashi Y., Naito T., Yamada A., Ikarashi A., Hayashi N., Isobe K., Influence of chemical pretreatments on the effectiveness o f hydrothermal treatment to enhance the pitting corrosion resistance of magnesium alloy, Journ al of the Japan Institute of Metals and Materia ls, 74, 12, pp. 771-778, (2010)
  • [7] Sano M., Yatsushiro K., Mitsui Y., Suzuki D., Matsumoto T., Matsumoto D., Chino Y., Yuk utake E., Development of mass production for aut omotive parts by die casting of flame retardant magnesium alloy (3nd report), Report of Yaman ashi Industrial Technology Center, 5, (2022)
  • [8] Yatsushiro K., Mitsui Y., Sakamoto C., Suzuk D., Ishiguro T., Sano M., Yoshihara S., Influ ence of shot peening treatment for hydrothermal process of magnesium alloy plate, Proceedings of the 49th Symposium on X-ray Studies of Mec hanical Behavior of Materials, pp. 38-41, (2015)
  • [9] Nakamura Y., Study on residual stress and def ormation in casting by ununiform cooling, Jour nal of Japan Institute of Light Metals, 14, pp. 83-90, (1955)
  • [10] Makoto T., Study on zirconium containing mag nesium casting alloy. (6th Report), Journal of J apan Institute of Light Metals, 9, 4, pp. 61-73, (1959)
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