重点介绍了按金相组织分类的贝氏体、马氏体类合金结构钢和铁素体、马氏体、奥氏体类不锈钢合金焊丝的生产工艺。
It mainly introduces the production processes of alloy structural steel welding wires of bainite and martensite and stainless steel welding wires of ferrite, martensite and austenite.
本文概述了非调质钢的开发和应用现状，其中包括铁素体一珠光体、贝氏体以及马氏体非调质钢。
This paper gives a survey of development and application of microalloyed engineering steels, including those with ferritic -pearlitic, bainitic, and martensitic structures.
介绍了超低碳贝氏体wdb620钢的力学性能，用几种传统的焊接性试验方法对该钢焊接接头的力学性能及抗裂性进行了研究。
The mechanical properties of steel WDB620 are introduced. Some traditional tests about the mechanical properties and cracking resistance on its welded joint have been made.
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