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Cause Analysis on Surface Crack of Casting Blank with Boron Containing Steel
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Yan Jin, Li Liu, Chun-peng Han
Rare Earth Steel | 2020, 46(4) : 41 - 43
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Rare Earth Steel | 2020, 46(4): 41-43
• Quality of Variety and Experiment and Research •
Cause Analysis on Surface Crack of Casting Blank with Boron Containing Steel
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Yan Jin, Li Liu, Chun-peng Han
Affiliations
  • Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2020-08-25 doi: 10.13647/j.cnki.btgkj.2020.04.011
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In this paper, the cause for the crack at corner of casting blank is introduced. It is found out that the boron nitride precipitates along grain boundary and weakens the original austenite grain boundary as well as the crack is produced along grain boundary with the subsequent effects of straightening force by analyzing with such detecting techniques as metallographic examination and scanning electron microscopy.

casting blank  /  boron nitride  /  crack
靳燕, 刘莉, 韩春鹏. 含硼钢铸坯表面裂纹产生原因分析. 包钢科技, 2020 , 46 (4) : 41 -43 . DOI: 10.13647/j.cnki.btgkj.2020.04.011
Yan Jin, Li Liu, Chun-peng Han. Cause Analysis on Surface Crack of Casting Blank with Boron Containing Steel[J]. Science & Technology of Baotou Steel, 2020 , 46 (4) : 41 -43 . DOI: 10.13647/j.cnki.btgkj.2020.04.011
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Year 2020 volume 46 Issue 4
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Article Info
doi: 10.13647/j.cnki.btgkj.2020.04.011
  • Receive Date：2019-12-23
  • Online Date：2026-10-20
  • Published：2020-08-25
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  • Received：2019-12-23
Affiliations
    Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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