许多以前研究稳定的超低碳钢(ULC)——即含C≈0.003％的非填隙钢(IF)的工作者认为:可以把这类钢看作是含碳量为C≈0.04-0.10％的高强度低合金钢(HSLA)。它们之间的区别,除了所形成的析出数量外,这两种钢的析出特性被认为是相似的。然而这观测结果对某些ULC钢来说可能是确切的。最近的研究表明,随钢的成分的微小差异可能出现其它析出。如典型的S、C和N含量(原子比S:C:N≈1:10:10)的Ti和/或Nb微合金化钢中,主要碳 Many previously researched ULC - that is, workers with non-interstitial steel (IF) containing C ≈ 0.003% consider that this type of steel can be considered as having a carbon content of C ≈ 0.04-0.10 % Of high strength low alloy steel (HSLA). The difference between them, except for the amount of precipitates formed, is considered to be similar for both steels. However, this observation may be exact for some ULC steels. Recent studies have shown that other precipitates may occur with small differences in the composition of the steel. In Ti and / or Nb microalloyed steels such as the typical S, C and N contents (atomic ratio S: C: N≈1: 10: 10), the major carbon