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近十余年来对高强度铁素体钢的研究已取得卓有成效的结果。把含微量铌的钢应用控制轧制的方法,可以使弥散的碳化铌沉淀在细的铁索体基体上从而获得高强度铁素体钢。另外,采用含有强烈碳化物形成元素(Nb、Ti或V)的合金钢,在奥氏体态进行等温分解,使它在γ→α的同时碳化物以极弥散的形态析出,并使铁素体细化,也能够成为高强度铁素体钢。本文先简单地介绍含铌钢中铁素体细化对钢的强化作
Nearly ten years of high-strength ferritic steel research has achieved fruitful results. The method of controlling the rolling of a steel containing a trace amount of niobium enables the dispersed niobium carbide to be deposited on a fine ferrite body to obtain a high-strength ferritic steel. In addition, an alloy steel containing a strong carbide-forming element (Nb, Ti, or V) is isothermally decomposed in the austenite state so that it precipitates in an extremely dispersed state while γ → α, and the content of the ferrite Fine, can also be a high-strength ferritic steel. This article first briefly introduces the strengthening of ferritic steel in niobium steel