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   temper martensite 在 金属学及金属工艺 分类中 的翻译结果: 查询用时:0.01秒
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temper martensite
相关语句
  回火马氏体
    MECHANISM OF TEMPER MARTENSITE EMBRITTLEMENT
    回火马氏体脆性的机制
短句来源
    Investigated result show that the microstructure nitrocarburized layer of GDL-4 steel mainly consist of γ ' phase and alloy nitrocarburizes in the transition layer, continuous ε phase was not formed, the inner microstructure is carbides, temper martensite and remain austenitic after 560 ℃ × 3h nitrocarburized technics, the rigidity grads of nitrocarburized layer is flat, the surface hardness and core hardness of the alloys tool steel are HV1200-1400 and HV800-900 respectively, mechanical properties of nitrocarburized layer is excellent.
    研究结果表明,GDL-4钢经过560℃×3h软氮化后渗层显微组织是由γ'和合金氮化物及碳化物组成的扩散层,未见连续的ε相形成,心部组织为碳化物+回火马氏体+残余奥氏体。 渗层硬度梯度平缓,表面硬度达HV1100~1400,心部硬度为HV800~900,渗层力学性能优良。
短句来源
    the microstructure of heat treated alloy with Cr additve consists of temper martensite and meshy secondary cementite.
    热处理态合金的微观组织加入Cr后变为回火马氏体,且在Fe-2Ni-3Cr合金中出现网状的二次渗碳体。
短句来源
    The result showed that theα、λof high-carbon steel decrease in the order of pearlite, temper sorbite, temper martensite, and quench martensite, and theα、λgo to the same after 500℃. This law is the same with the law of hardness and strength with the temper temperature.
    结果表明,高碳钢的α和λ值按珠光体、回火索氏体、回火马氏体和淬火马氏体的顺序依次减小,且在500℃以后趋于一致,这恰好与硬度、强度值随回火温度变化的规律吻合。
短句来源
    The result shows that the metallurgical structure of 40Cr with normalization and low temperature tempering is made up of ferrite and pearlite, the structure with normalization and high tem- perature tempering is made up of ferrite and granular pearlite, the structure with quenching and low temperature tempering is made up of temper martensite, among which, the impact fatigue lifespan of 40Cr whose structure with normalization and high temperature tem- pering is highest.
    结果表明,40Cr正火低温回火的组织由铁素体和珠光体组成,正火高温回火的组织由铁素体和粒状珠光体组成,淬火低温回火组织为回火马氏体,40Cr正火高温回火热处理的冲击疲劳寿命高。
短句来源
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  “temper martensite”译为未确定词的双语例句
    The effect of holding time(0~1500h)on microstructure and mechanical properties of12Cr1MoV steel is studied-results show that with the holding time prolonged-the microstructure of12Cr1MoV steel varied from temper martensite to lo w carbon bar bainite and the tensile strength was increased-the yield strength-elongation-cross-section and impact toughness began to decreased after gradual increased.
    研究了不同恒温保持时间(0~1500h)对12Cr1MoV钢的显微组织和力学性能的影响。 结果表明,随着恒温保持时间的延长,12Cr1MoV钢的显微组织由回火马氏体转变为低碳板条束贝氏体,σb升高;
短句来源
    EFFECTS OF AS AND Sb ON TEMPER MARTENSITE EMBRITTLEMENT IN 3OCRMNSIA STEEL
    砷锑对30CrMnSiA钢低温回火脆性的影响
短句来源
    The effect of As,Sn and Sb on tempor brittieness of 30 CrMnSiA steel is studied, It showeS that the temper martensite embrittlement is correlated with interlath carbides,which initiate quasi-cleavage fracture across the martensite laths,and the residual deleterlous eleni1ents may en han ced the embrittlement.
    研究了30CrMnSiA钢中复合加入不同量的砷、锡、锑对低温回火脆性及高温回火脆性的影响。 证实该钢的低温回火脆性是马氏体板条间碳化物析出产生的准解理断裂所致,有害元素的存在会加剧这种脆性的发展。
短句来源
    The different quantities of As and Sb were added to 30CrMnSiA steel,The influencing regulaties of these elementson temper martensite embrittlement were investigated by TEM,SEM and ABS.
    在30CrMnSlA钢中加入了不同量的砷(As)和锑(Sb),应用扫描电镜、透射电镜及俄歇能谱研究了这些元素对低温回火脆性的影响规律。
短句来源
    The results show that temper martensite embrittlement is correlated with interlace carbides whic h initiated quasl-cleavagefracture. Impurity elemcnts may incrcase extent of embrittlementand effect of Sb is stronger than As.
    结果表明该钢的低温回火脆性是马氏体条间碳化物析出而产生准解理断裂所致,杂质元素的存在则会增加脆性的程度,且Sb的作用明显强于As的作用。
短句来源
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  temper martensite
At the same strength, the steel with a structure of low-temper martensite has higher resistance to fracture than the steel with high-temper martensite.
      
1.Steel 08Kh4N2M with the structure of lath temper martensite (σo η 2 = 700 N/mm2) exhibits a higher resistance to thermal embrittlement than steel 10KhSND with a structure of martensite and temper bainite.
      
Structural strength of steels with a structure of temper martensite
      
1.Sprayer cooling after HTMT of steels 38KhS and 30KhGSN2A for 5 and 12 sec leads to formation of temper martensite and a good combination of strength and ductile characteristics.
      


The total driving force for the decomposition of retained austensite and that of martensite, the driving force for nucleation of cementite, the growth rate as well as the incubation period of the formation of cementite that precipitates from martensite and austenite are evaluated. The results reveal that in spite of the fact that the driving force for the decomposition of martensite is one order of magnitude less than that of austenite, the driving force for the nucleation of cementite that precipitates from...

The total driving force for the decomposition of retained austensite and that of martensite, the driving force for nucleation of cementite, the growth rate as well as the incubation period of the formation of cementite that precipitates from martensite and austenite are evaluated. The results reveal that in spite of the fact that the driving force for the decomposition of martensite is one order of magnitude less than that of austenite, the driving force for the nucleation of cementite that precipitates from martensite is far greater than that from austenite and the incubation period of the formation of cementite as it precipitates from martensite is one order of magnitude less than that from austenite. It is obvious that during the short time tempering, cementite firstly precipitates from martensite, while upon tempering with long duration, since the total driving force for the decomposition of the retained austenite is greater and the contraction of martensite resulted from its decomposition would enhance the decomposition of interlath retained austenite, the precipitation of cementite from austenite leads the temper martensite embrittlement-Therefore, as the segregation of the impurities(and cementite) on the grain boundary is not taken into consideration, the mechanism of the TME may be assumed to be the combination of the two related decomposition processes.

计算了残余奥氏体分解和马氏体分解的相变总驱动力,渗碳体自马氏体析出和自奥氏体析出的形核驱动力、长大速率和孕育期。计算结果揭示:尽管奥氏体分解的驱动力大于马氏体分解约一个数量级,但渗碳体自马氏体析出的形核驱动力远大于自奥氏体的析出,长大速率约大两个数量级,孕育期比奥氏体析出的约小一个数量级。可见在低温短时回火时,渗碳体先从马氏体内析出;当回火时间较长时,由于奥氏体分解的相变总驱动力较大,以及由于马氏体条内析出渗碳体引起的收缩,促使条间残余奥氏体的分解,形成回火马氏体脆性。因此当不计及杂质(及渗碳体)在原始奥氏体晶界的偏聚对,回火马氏体脆性的机制应为这两个分解先后互相关联的过程。

The effect of As,Sn and Sb on tempor brittieness of 30 CrMnSiA steel is studied, It showeS that the temper martensite embrittlement is correlated with interlath carbides,which initiate quasi-cleavage fracture across the martensite laths,and the residual deleterlous eleni1ents may en han ced the embrittlement.The tempor brittleners is attributed to the segre8ation of impurity elemen ts to the prior austenite grain boundarices,which causes intergranular fracture,so the conten t of these elements in...

The effect of As,Sn and Sb on tempor brittieness of 30 CrMnSiA steel is studied, It showeS that the temper martensite embrittlement is correlated with interlath carbides,which initiate quasi-cleavage fracture across the martensite laths,and the residual deleterlous eleni1ents may en han ced the embrittlement.The tempor brittleners is attributed to the segre8ation of impurity elemen ts to the prior austenite grain boundarices,which causes intergranular fracture,so the conten t of these elements in steel must be limited.

研究了30CrMnSiA钢中复合加入不同量的砷、锡、锑对低温回火脆性及高温回火脆性的影响。证实该钢的低温回火脆性是马氏体板条间碳化物析出产生的准解理断裂所致,有害元素的存在会加剧这种脆性的发展。高温回火脆性是有害元素偏聚到晶界,助长沿晶断裂所致。这些元素在钢中的含量必须加以限制。

The different quantities of As and Sb were added to 30CrMnSiA steel,The influencing regulaties of these elementson temper martensite embrittlement were investigated by TEM,SEM and ABS.The results show that temper martensite embrittlement is correlated with interlace carbides whic h initiated quasl-cleavagefracture. Impurity elemcnts may incrcase extent of embrittlementand effect of Sb is stronger than As.

在30CrMnSlA钢中加入了不同量的砷(As)和锑(Sb),应用扫描电镜、透射电镜及俄歇能谱研究了这些元素对低温回火脆性的影响规律。结果表明该钢的低温回火脆性是马氏体条间碳化物析出而产生准解理断裂所致,杂质元素的存在则会增加脆性的程度,且Sb的作用明显强于As的作用。

 
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