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1·X-Ray analysis finds that steel after tempering main matrix of tempered martensite.

用x -射线衍射分析发现，试验钢回火后的组织主要为回火马氏体。

2·The final structure obtained from tempering a fully hardened steel is called tempered martensite.

回火完全淬硬钢得到的最终组织结构被称为回火马氏体。

3·Tempered martensite was gradually generated as the cutting temperature increased, which is the main cause of the decrease in the hardness.

随着加工温度升高，工件表面逐渐产生回火马氏体，这是造成工件表面硬度下降的主要原因。

4·Unlike that of tempered martensite structure, there is little effect of oxygen content on the fatigue properties of ferrite-pearlite steel.

与调质回火马氏体组织不同，氧含量对铁素体-珠光体组织的疲劳性能没有明显的影响。

5·Bainite has higher abrasive wear resistance than tempered martensite with equal or higher hardness in hard abrasion, but in reverse in soft abrasion.

下贝氏体组织在高应力磨料磨损下比相同硬度，或稍高硬度的回火马氏体组织具有较高的耐磨性，但在低应力磨损下表现为不利的作用。

6·The results show that the microstructure of FV520B stainless steel is mainly tempered martensite. With the increase of the alloy elements, the microstructure becomes finer.

结果表明，FV520B不锈钢的焊缝组织以回火马氏体为主，随着合金元素增加，焊缝组织变得更加细小。

7·The evolution of deformation dislocation structure during the tensile loading was examined by transmission electron microscopy in the tempered martensite of low and middle carbon alloy steels.

应用透射电子显微术研究低碳及中碳合金钢回火马氏体的形变位错结构随拉伸加载过程的演变。

8·The effect of hardening and tempering process on the organization and performance of high-strength and high-toughness non-hardened-and tempered steel of low carbon martensite is researched.

研究了淬火、回火工艺对低碳马氏体型高强度高韧性非调质钢的组织和性能的影响。

9·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；