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。
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。
The paper discusses the twin theory and other theses on the habit plane of the lath martensite, the direction relationship and the relative oriented relationship between laths.
本文对板条状马氏体的惯习面和位向关系、板条间相对取向关系的孪晶学说和其它论点以及板条状马氏体形态模型进行了讨论。
The presence of a certain amount of retained austenite improves the resistance to contact fatigue failure. The lath martensite has better resistance than the plate twin martensite.
金相组织对钢的接触疲劳寿命有重要作用：板条马氏体组织比片状马氏体组织抗接触疲劳性能好，适量的残余奥氏体可改善钢的抗接触疲劳性能。
The formation of the inter-lath austenite in quenched low-carbon steels is described and the existence of the carbon diffusion during the lath martensite formation is emphasized.
叙述淬火低碳钢内条间奥氏体的形成，着重指出条状马氏体形成时存在碳的扩散。
The results indicated that the steel is composed of quasi bainite, lath martensite and twin martensite under air cooling condition, and also has better combination of strength and toughness.
试验表明：该钢空冷条件下即可获得准贝氏体、板条马氏体及孪晶马氏体的复合组织，且具有较好的强韧性配合。
The morphology and crystallography analysis of lath martensite within a packet in 17CrNiMo6 steel was studied by electron backscattering diffraction(EBSD) with field emission gun.
利用电子背散射衍射（EBSD）技术和TEM分析方法研究了17CrNiMo6钢中一个形态上的packet内的板条马氏体的形态与晶体学特征。
Then the morphology was observed by optical microscope and SEM. The grain size of austenite, the number of martensite in austenite grains and the spacing of the lath martensite were measured.
用金相显微镜和SEM观察了试样铸态微观组织形态，测定了奥氏体晶粒尺寸以及奥氏体晶粒内马氏体板条束个数和马氏体板条间距。
The microstructure of surfacing metal is lath martensite and carbide.
堆焊层显微组织为低碳马氏体和碳化物。
The results show that there are four kinds of carbides in annealed state of the steel, and major portion of quenched martensite is lath-like martensite.
结果表明，该钢退火状态存在四种类型碳化物，淬火组织以板条马氏作为主。
The microstructure of the steel transforms from ferrite plus granular bainite, lath bainite plus lath martensite and then to lath martensite successively with the increasing of cooling rate;
随着冷却速率的增加，实验钢的显微组织由铁素体+粒状贝氏体逐步转变为板条贝氏体+板条马氏体及板条马氏体组织；
The results show that as-annealed microstructure and as-quenched-tempered microstructure of the low carbon high alloy steel added nickel are both single-phase lath martensite.
结果表明：加镍低碳高合金钢无论退火态还是淬火回火态，其组织均为单相板条马氏体；
The results show that as-annealed microstructure and as-quenched-tempered microstructure of the low carbon high alloy steel added nickel are both single-phase lath martensite.
结果表明：加镍低碳高合金钢无论退火态还是淬火回火态，其组织均为单相板条马氏体；
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