详细介绍了管线钢合金设计的基本特征——低碳或超低碳的微合金化和多元合金化,着重论述了以超高强度为目标的硼合金设计,以高温轧制工艺技术(HTP)为依托的高Nb合金设计和基于防止焊接热影响区脆化的微Ti合金设计等管线钢合金设计的几个重要进展。
It detailedly introduced basic characteristics of pipeline alloy design—micro-alloying of low Carbon or ultra-low Carbon and multi-alloying,and emphasized B alloy design target to ultra-high strength,high Nb alloy design based on high temperature process and tiny Ti alloy design based on preventing HAZ embrittlement.