Experiments show that the dual phase structure suitable to wire drawing consists of fine ferrite islands dispersed in the matrix of lath martensite.
实验表明，适于拔丝的双相组织是在板条马氏体基体上分布着细小的铁素体岛。
After proper heat treatment the steel will have a dual phase structure of austenite and bainite. arranged alternatively in the form of lath ferrite and thin film austenite.
经适当热处理，获得贝氏体铁素体板条与奥氏体薄膜交替排列的奥氏体-贝氏体双相组织。
The experimental result shows that the cracking resistance can be increased effectively as dual-phase structure existed in the layer consisting of lower bainite and lath martensite.
试验证明，当焊缝组织为下贝氏体及板条马氏体双相组织时，能有效地提高焊条的抗裂性能。
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