Evaluation of solidification cracking susceptibilities of heat-resistant magnesium alloys during die-casting using in-situ observation method

Solidification cracking during welding is very serious problem for practical use. Therefore, there are so many reports concerning solidification cracking. Normally, solidification cracking susceptibility of material is quantitatively evaluated using Trans-Varestraint test. On the other hand, local solidification cracking strain was tried to measure precisely using in-situ observation method, called MISO method about 30 years ago. Recently, digital high-speed video camera develops very fast and its image quality is very high. Therefore, we have started to observe solidification crack using in site observation method. In this paper, the local critical strain of a solidification crack was measured and the high temperature ductility curves of weld metals having different dilution ratios and different grain sizes to evaluate quantitatively the effects of dilution ratio and grain size on solidification cracking susceptibility by using an improved in situ observation method.

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Evaluation of Solidification Cracking Susceptibility during Laser Welding by In-situ Observation Method

Chinese Journal of Lasers ◽

10.3788/cjl201138.0603005 ◽

2011 ◽

Vol 38 (6) ◽

pp. 0603005

Author(s):

温鹏 Wen Peng ◽

荻崎贤二 Shinozaki Kenji ◽

山本元道 Yamamoto Motomichi

Keyword(s):

Laser Welding ◽

Solidification Cracking ◽

In Situ Observation ◽

Observation Method

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Prediction of Solidification Cracking in Weld Metal during Welding using In-situ Observation Method

Journal of the Society of Mechanical Engineers ◽

10.1299/jsmemag.110.1066_696 ◽

2007 ◽

Vol 110 (1066) ◽

pp. 696-697

Author(s):

Kenji SHINOZAKI

Keyword(s):

Weld Metal ◽

Solidification Cracking ◽

In Situ Observation ◽

Observation Method

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Prediction of occurrence of solidification cracking of heat-resistant magnesium alloys during die-casting

Journal of Japan Institute of Light Metals ◽

10.2464/jilm.63.14 ◽

2013 ◽

Vol 63 (1) ◽

pp. 14-20 ◽

Cited By ~ 3

Author(s):

Toshio Fujii ◽

Motomichi Yamamoto ◽

Kenji Shinozaki ◽

Kazuaki Mitsufuji

Keyword(s):

Magnesium Alloys ◽

Die Casting ◽

Solidification Cracking ◽

Heat Resistant

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Newly Developed Heat Resistant Magnesium Alloy by Thixomolding®

Materials Science Forum ◽

10.4028/www.scientific.net/msf.488-489.287 ◽

2005 ◽

Vol 488-489 ◽

pp. 287-290 ◽

Cited By ~ 1

Author(s):

Tadayoshi Tsukeda ◽

Ken Saito ◽

Mayumi Suzuki ◽

Junichi Koike ◽

Kouichi Maruyama

Keyword(s):

Aluminum Alloy ◽

Magnesium Alloy ◽

Magnesium Alloys ◽

Room Temperature ◽

Elevated Temperatures ◽

Die Casting ◽

The Other ◽

Heat Resistant ◽

Higher Temperature ◽

Better Than

We compared the newly developed heat resistant magnesium alloy with conventional ones by Thixomolding® and aluminum alloy by die casting. Tensile properties at elevated temperatures of AXEJ6310 were equal to those of ADC12. In particular, elongation tendency of AXEJ6310 at higher temperature was better than those of the other alloys. Creep resistance of AXEJ6310 was larger than that of AE42 by almost 3 orders and smaller than that of ADC12 by almost 2 orders of magnitude. Fatigue limits at room temperature and 423K of AXEJ6310 was superior among conventional magnesium alloys.

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