Medium-Mn steels for hot forming application in the automotive industry

Advanced high-strength steels have been widely used to improve the crashworthiness and lightweight of vehicles. Different from the popular cold stamping, hot forming of boron-alloyed manganese steels, such as 22MnB5, could produce ultra-high-strength steel parts without springback and with accurate...

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Bibliographic Details
Published inInternational journal of minerals, metallurgy and materials Vol. 28; no. 5; pp. 741 - 753
Main Authors Li, Shuo-shuo, Luo, Hai-wen
Format Journal Article
LanguageEnglish
Published Beijing University of Science and Technology Beijing 01.05.2021
Springer Nature B.V
Subjects
Accuracy
Automobile industry
Automobiles
Boron
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cold
Cold stamping
Commercialization
Composites
Cooling
Corrosion and Coatings
Crashworthiness
Ductility
Glass
High strength steel
High strength steels
Hot forming
Impact strength
Invited Review
Manganese
Manganese steels
Manufacturing
Materials Science
Mechanical properties
Metallic Materials
Natural Materials
Production costs
Springback
Steel
Surfaces and Interfaces
Temperature
Tensile strength
Thin Films
Tribology
baking
hot forming
medium-Mn transformation-induced plasticity steel
mechanical properties
retained austenite
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Summary:Advanced high-strength steels have been widely used to improve the crashworthiness and lightweight of vehicles. Different from the popular cold stamping, hot forming of boron-alloyed manganese steels, such as 22MnB5, could produce ultra-high-strength steel parts without springback and with accurate control of dimensions. Moreover, hot-formed medium-Mn steels could have many advantages, including better mechanical properties and lower production cost, over hot-formed 22MnB5. This paper reviews the hot forming process in the automotive industry, hot-formed steel grades, and medium-Mn steel grades and their application in hot forming in depth. In particular, the adaptabilities of medium-Mn steels and the presently popular 22MnB5 into hot forming were compared thoroughly. Future research should focus on the technological issues encountered in hot forming of medium-Mn steels to promote their commercialization.
Bibliography:ObjectType-Article-1
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ISSN:1674-4799
1869-103X
DOI:10.1007/s12613-020-2179-9