Effect of Inclusions Containing Ti, Mg on Microstructure and Performance of HAZ in Low Carbon Steel
In order to study the effects of inclusions containing titanium, zirconium and magnesium on the impact toughness of heat affected zone (HAZ) of steel, two low carbon steels deoxidized by titanium, zirconium and magnesium were obtained. After some treatments, the inclusion characteristics (size, morphology and chemistry) analysis, Charpy-type test, microstructure and the fracture observation were carried out on the prepared specimens. The following results were found. The inclusions containing Mg can keep more stable in HAZ. The inclusion containing Mg can enhance the impact toughness of HAZ, and the impacting energy reaches 249J at 253K when simulated input energy is 150kJ/mm. The inclusions with diameter smaller than 1.5 μm play a key role of pinning effect.
HAZ low carbon steel titanium zirconium magnesium
ZHAN Dong-ping MA Jiang-hua JIANG Zhou-hua HE Ji-cheng YU Jin
School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China
国际会议
The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)
北京
英文
773-776
2011-05-31（万方平台首次上网日期，不代表论文的发表时间）