TY - JOUR ID - 4807 TI - Niobium Alloyed High Strength Steels for Automotive Applications JO - International Journal of Iron & Steel Society of Iran JA - IJISSI LA - en SN - 2981-0388 AU - Mohrbacher, Hardy AD - Niobium Products Company GmbH, Steinstrasse 28, 40210 Düsseldorf, Germany Y1 - 2006 PY - 2006 VL - 3 IS - 1 SP - 13 EP - 19 KW - Niobium microalloying KW - Microstructure KW - Formability KW - Weldability DO - N2 - Modern vehicle bodies make intensive use of high strength steel grades to meet the contradicting demand of lighter weight and simultaneously better mechanical performance. For many steel grades microalloying by niobium is the key to achieve their characteristic property profile. In HSLA steels niobium enhances the strength primarily by grain refinement. In interstitial free high strength steels niobium serves as a stabilizing element. Some modern multiphase steels rely on niobium to achieve additional strength via grain refinement and precipitation hardening. Microstructural control constitutes a powerful means to further optimize properties relevant to automotive processing such as cutting and forming. The role of niobium microalloying in that respect will be outlined.  UR - https://journal.issiran.com/article_4807.html L1 - https://journal.issiran.com/article_4807_363a2aeb534fcc0127b3287848f5fcee.pdf ER -