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。
Tempered martensite was gradually generated as the cutting temperature increased, which is the main cause of the decrease in the hardness.
在同样晶粒度和硬度，不添加杂质的条件下，马氏体有较低的屈服强度、较高的冲击断裂功以及较低的塑脆转变温度，这些都由于较细的平均碳化物尺寸引起。
For the same grain size and hardness in the unembrittled conditions, martensite has lower yield strength higher Charpy fracture energy and lower FATT due to finer mean carbide size.
研究了低碳奥氏体—马氏体双相不锈钢在不同回火温度下硬度变化规律。
This paper has studied hardness changing law of low carbon austenite-martensite double phases stainless steel at different tempering temperatures.
而最表层由于获得完全细化的马氏体组织，拥有较好的回火稳定性，与未偏磨面表层硬度相当。
However, because of fully granin refinement of martensite and good perfornance of temper resistance , the hardness of outer surface of worn side is equal to that of non-worn side.
研究分析表明，晶粒细化、高的马氏体含量、马氏体高位错密度和固溶含碳量是获得超高硬度的主要原因。
We assume that the ultrahigh hardness is mainly due to the ultrafine grains, high density dislocation and more content of carbon in martensite.
马氏体不锈钢淬火后的硬度随钢中碳含量增加而增高，当碳含量达到0.6％左右后，钢的硬度基本上不再增高。
The hardness of quenched martensitic stainless steels increases with carbon content and it reaches a nearly invariant value as the carbon content in steels is higher than about 0.6%.
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。
Bainite has higher abrasive wear resistance than tempered martensite with equal or higher hardness in hard abrasion, but in reverse in soft abrasion.
对原始组织为马氏体的冷轧15钢在CS - IB型六面顶压机上进行了高压热处理，测量试样的维氏硬度。
The martensitic steel 15 was heat treated under high pressure in the CS-IB type hexahedron anvils press. The Vickers hardness of the sample was measured.
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.
在以往的文献记载中，常根据其硬度接近马氏体，将其归结为拉拔过程中表面异常升温而产生的马氏体。
In past literature, based on the layer's hardness close to martensite's, the layer was considered martensite from abnormal temperature rise on the surface.
熔敷金属具有高硬度的马氏体组织，耐磨耗耐冲击性能优良，硬度HRC55 ~58。
Deposited metal of martensite with high hardness, good abrasion resistance, impact resistant performance of hardness HRC55 ~ 58.
马氏体不锈钢，耐腐蚀，抛光性能优异，热处理性能稳定硬度HRC51 ~53。
Martensitic stainless steel corrosion resistance, excellent polishing treatment stable performance HRC51 hardness - 53.
马氏体不锈钢，耐腐蚀，抛光性能优异，热处理性能稳定硬度HRC51 ~53。
Martensitic stainless steel corrosion resistance, excellent polishing treatment stable performance HRC51 hardness - 53.
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