峰温越高，奥氏体晶粒越粗大，冷却后形成的马氏体板条束尺寸也越大。
The higher the peak temperature, the coarser the grain size of prior austenite, the larger the martensitic lath bundle after phase transformation.
奥氏体组织分割了马氏体束或马氏体板条，减小了有效晶粒尺寸，阻止裂纹扩展，提高材料的韧性和塑性；
Austenite separates the martensite blocks or laths so that it can reduce the effective grain size and prevent cracks from propagating.
弹坑表面的变形带和相变带是由非常细小马氏体板条组成，其硬度非常高，远远高于装甲钢板的基体和淬火硬度。
The deformed band and transformed band are made up of very fine martensite laths, its hardness is much higher than that of the as-quenched specimen.
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。
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.
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 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.
这些微区分别为内孪晶马氏体区和位错板条马氏体区。
They are dislocated lath martensite area and twinned martensite area respectively.
研究了超高强度板条马氏体钢的平面应变断裂韧性与缺口韧性、拉伸塑性之间的关系。
The relationship between fracture toughness and notch toughness, tensile ductilities in lath martensite steel has been investigated.
利用干涉显微镜首次测得了板条马氏体形状应变的大小及方向。
The magnitude and direction of lath martensitic shape strain is firstly measured by a new interference method in this research.
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 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.
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 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.
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。
Experiments show that the dual phase structure suitable to wire drawing consists of fine ferrite islands dispersed in the matrix of 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。
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.
钢的含碳量越高，获得全部板条马氏体的临界奥氏体温度越高。
When austenitizing temperature is higher than a critical temperature, full lath martensite can be obtained in medium and high carbon steel.
以板条马氏体为原始组织，慢速加热可使粒状贝氏体继承原组织特征。
When plate martensite is taken as original structure, the slow heating can make gram bainite inherit structure feature of original structure.
结果显示对于等温淬火球铁，激光硬化层中马氏体片的尺寸与基体奥氏体—贝氏体中的铁索体板条尺寸相近。
The effects of laser hardening on the structure and wearability of a normalized and an austempered ductile iron were investigated.
结果表明：直接淬火工艺的淬火组织为板条马氏体和孪晶马氏体共存，且孪晶马氏体的含量较多。
The results show that the quenching microstructure of direct quenching technology consists of lath and twin martensites, and the amount of the latter is more.
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 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;
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。
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.
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；
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.
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