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Multi-physics modelling of semi-solid deformation and hot tearing in advanced high strength steels

Multi-physics modelling of semi-solid deformation and hot tearing in advanced high strength steels
先进高强度钢半固态变形和热撕裂的多物理场建模
批准号:
500496-2016
负责人:
Phillion, AndréBernard
金额:
$2.92万
依托单位国家:
加拿大
项目类别:
Collaborative Research and Development Grants
财政年份:
2016
资助国家:
加拿大
项目状态:
已结题
起止时间:
2016-01-01 至 2017-12-31

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中文摘要
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英文摘要
Advanced high strength steels (AHSS) represent a key component in reducing vehicle weight and hence reducing fuel consumption related greenhouse gas emissions. In comparison to traditional high strength steels, AHSS achieve significant strength while retaining formability. The increased formability enables greater component complexity, which leads to fewer individual parts and more manufacturing flexibility. However, due to their high alloy contents - manganese up to 5%, silicon up to 2% and aluminum up to 2% - AHSS slabs routinely exhibit transverse surface cracks and centreline cracks caused by hot tearing of the solidifying shell. These cracks result in operational delays and poor product quality for steel producers.
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