次层为淬火马氏体组织；
氮碳共渗后快冷，在渗层获得含氮碳的马氏体组织。
Rapid cooling after nitrocarburizing, martensite structure is obtained at the diffusion layer.
采用TEM对形变位错密度以及马氏体组织进行了分析。
The deformation dislocation density and martensite microstructure were also analysed by TEM.
白亮层中的粘结相以及过渡层的组织均为混合的马氏体组织。
The structure of adhesive phase and transition layer in bright layers are mixed type of martensite.
结果表明，过渡区马氏体组织的生成，异种钢接头的热应力是产生焊接裂纹的主要原因。
The results show that martensite at transition area and the thermal stress in the joint of different material will cause crack in clad steel plate during welding.
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。
Unlike that of tempered martensite structure, there is little effect of oxygen content on the fatigue properties of ferrite-pearlite steel.
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.
受非马氏体组织的影响及可动位错密度降低的作用，屈服强度、屈强比随退火温度升高而升高。
The yield strength, yield ratio increase with the increase of annealing temperature, due to the impact of non-martensite and the decrease of movable dislocation density.
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.
与马氏体组织相比，由贝氏体铁素体和残余奥氏体组成的准贝氏体组织，其光滑及缺口疲劳强度均较高。
The results shows that the smooth and notch fatigue strength of the meta-bainite consisting of bainite ferrite and retained austenite is higher than that of martensite.
该流体机械尤其是用于低温用途的涡轮压缩机，其中该壳体优选地由具有马氏体组织的冷韧性的材料制成。
Said fluid machinery is designed especially as a turbo compressor for use at low temperatures, the housing preferably being made of a cold-resistant material that has a martensitic structure.
结果表明，形变诱发马氏体组织所加剧的加工硬化与冶炼时所产生的气孔缺陷的共同作用是冷轧断带的原因。
The results show that the effects of work hardening by strain-induced martensite transformation and cast pore defects are the main reasons leading to strip broken of the steels during cold rolling.
结果表明，在连接杆焊缝附近的热影响区中存在大量针状马氏体组织，在低应力的作用下，导致材料发生脆性断裂。
The result shows that the fracture mode is low stress brittle fracture. The fracture is mainly caused by needle type martensite in the heat affected zone of the weld joint.
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;
采用真空控时急冷技术对H13钢热作模具进行淬火，可使之得到细小的马氏体组织，从而显著提高热作模具的冲击韧度。
Hot working dies of H13 steel vacuum quenched by the use of the time-controlled sudden cooling technology will obtain fine martensite.
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.
结果表明：由于焊接电流过大，使焊缝产生淬火马氏体组织及较大的焊接残余应力，导致镀锌氢脆敏感性增加，造成吸油盘发生氢脆开裂。
The large welding current caused the formation of quenched martensite and the high residual stresses in the welding zone, resulting in the increase of zinc sensitivity of hydrogen attack.
研究结果表明：在不预热条件下，用KD286焊补钢轨，焊缝组织为柱状奥氏体组织，熔合区和过热区不可避免地产生脆硬的马氏体组织。
The results show that:under the no preheating condition, the microstructure of weld metal is columnar austenitic, and brittle martensite exists in the fusion zone and over-heated zone unavoidably.
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.
回火完全淬硬钢得到的最终组织结构被称为回火马氏体。
The final structure obtained from tempering a fully hardened steel is called tempered martensite.
该项研究描述了铁碳合金中魏氏组织和马氏体的形成，所用合金具有宽的碳含量范围，热处理时采用的冷却速率范围也是宽的。
The research describes the formation of Widmanstatten structure and martensite in iron-carbon alloys possessing a broad range of carbon contents and heat treated using a broad range of cooling rates.
重点介绍了按金相组织分类的贝氏体、马氏体类合金结构钢和铁素体、马氏体、奥氏体类不锈钢合金焊丝的生产工艺。
It mainly introduces the production processes of alloy structural steel welding wires of bainite and martensite and stainless steel welding wires of ferrite, martensite and austenite.
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.
原始材料的组织状态为形变马氏体、淬火马氏体及残余奥氏体。
The original structure consists of deformation induced martensite, quenching martensite and retained austenite.
淬火态组织为马氏体、碳化物和奥氏体，淬火三次回火态组织为马氏体和碳化物。
The microstructure of quenching are martensite, carbide and retained austenite, and are martensite and carbide by quenching and three times tempering.
堆焊层显微组织为低碳马氏体和碳化物。
The microstructure of surfacing metal is lath martensite and carbide.
两种制度的组织均为主要是孪晶型马氏体。
The structure of the two system is mainly the twin-type martensite.
钢的组织主要由针状铁素体和马氏体两相组成。
Mainly its metallographic structure consists of acicular ferrite and martensite.
结果表明：试验钢的组织由细小岛状马氏体与针状铁素体为主构成，马氏体体积分数为27．6%。
The results showed that the microstructure of the steel was mainly composed of fine island-like martensite and acicular ferrite, with a 27.6% of martensite volume fraction.
结果表明，采用该工艺可获得高密度、高碳含量、具有马氏体、贝氏体和网状碳化物组织的粉末冶金气门座。
The results show that P/M valve seats using this technology has high density and high carbon content , and their microstructure are martensite , bainite and network carbide.
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