综述了不同温度区间含铌微合金钢的高温塑性。
This paper describes comprehensively the hot ductility of Nb-bearing microalloyed steel in different temperature range.
得出在含铌x60管线钢中，由于微合金元素的加入，从几个方面抑制了晶粒的长大，并成为微合金钢中最重要的晶粒细化方法之一。
This paper shows that adding of the micro-alloyed elements helps to the inhibiting of grain expansion, thus, becoming one of ways of fine the grain.
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