摘要
The Fe48Cr15Mo14Er2C15B6amorphous steel can hardly be used as an engineering material because of its ex- treme brittleness and very low iron content. By changing the composition of the nonmagnetic amorphous steel, and using the relation between the reduced glass transition tempera- ture Trg and the glass forming ability, a new amorphous Fe56Mn5Cr7Mo12Er2C12B6 alloy with good glass forming abil- ity and high iron content was obtained. The diameter of the as-cast sample rod reached 8 mm. This new amorphous steel has lower manufacturing cost due to its high iron content, and thus it can have wider applications.
The Fe_(48)Cr_(15)Mo_(14)Er_2C_(15)B_6 amorphous steel can hardly be used asan engineering material because of its extreme brittleness and very low iron content. By changingthe composition of the nonmagnetic amorphous steel, and using (lie relation between the reducedglass transition tempera-tore T_(rg) and the glass forming ability, a new amorphousFe_(56)Mn_5Cr_7Mo_(12)Er_2C_(12)B_6 alloy with good glass forming ability and high iron content wasobtained. The diameter of the as-cast sample rod reached 8 mm. This new amorphous steel has lowermanufacturing cost due to its high iron content, arid thus it can have wider applications.
基金
This work was supported by the National Natural Science Foundation of China(Grans No.50371098 and 50321101)
the Key Project of the Beiing Science and Technology Program(Contract No.H02040030320).
