The effects of the addition of rare earth cerium on the impact corrosion and wear resistance of CrNiMnMo alloyed lining steel were studied using metallurgical microscopy, scanning electron microscope, x‐ray powder diffraction, a hardness tester, an impact tester, and an impact corrosion abrasion tester. The properties of CrNiMnMo alloyed lining steel with the addition of cerium were compared with that of CrNiMnMo steel without the addition of cerium after being heat treated by same processes. The results show that CrNiMnMo alloyed lining steel with the addition of rare earth cerium consisted of lath martensite with a low residual austenite phase after being quenched and tempered. The lath of the martensite was fine and uniform. The impact toughness and the corrosion resistance of the steel lining board improved greatly with the addition of cerium and the impact toughness increased by 22 % with the fracture mode of being ductile. The CrNiMnMo alloyed lining steel with cerium showed the highest resistance to impact corrosion abrasion compared with the alloy without cerium.
An amino acid ionic
liquid tetramethylammonium glycinate ([N1111][Gly]) and
an organic supramolecular gelator N-lauroyl-l-glutamic acid di-n-butylamide
(GP-1) were used as structure-directing agents for the fabrication
of mesoporous alumina with diverse morphologies via a solvothermal
synthetic method. The irregular sheets and hierarchical clusters were
respectively prepared with only [N1111][Gly] or GP-1/EW
as the template, whereas a distinct cactus rod-like morphology with
interlaced lateral plates was constructed with [N1111][Gly]
and GP-1 as the cotemplate. The cotemplate synergistic effects of
[N1111][Gly] and GP-1 on the morphology tailoring of alumina
have been investigated in depth. A self-assembly mechanism based on
the bilayer arrangement model was proposed to be responsible for the
formation of final cactus rod-like alumina. The intermolecular H-bonds
between the GP-1 molecule and [N1111][Gly]-AlOOH hybrids
was found to be the main driving force for the axial growth of initial
nanocrystals, and the growth of the nanocrystals in lateral orientation
was inhibited due to the stereohindrance effect of [N1111][Gly].
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