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strain induced martensite     
相关语句
  应变诱发马氏体
     TOUGHNESS INCREASEMENT BY STRAIN INDUCED MARTENSITE TRANSFORMATION OF RETAINED AUSTENITE IN Cr12 STEEL
     Cr12钢残余奥氏体应变诱发马氏体相变增韧
短句来源
     The strain induced martensite took place at subsurface. The energy of martensite tranformation comes from impact energy, value of which is 434J·mo1 -1 .
     亚表层中介稳奥氏体发生应变诱发马氏体相变,转变能来源于外界冲击功,其值为434J·mol-1。
短句来源
     The hardening curve exhibits sigmoid in metastable austenite stainless steel at low temperature due to strain induced martensite transformation during deformation.
     亚稳态奥氏体不锈钢低温拉伸时 ,由于存在应变诱发马氏体相变 ,硬化曲线呈S形。
短句来源
     The hardening curve exhibits sigmoid shape in metastable austenite stainless steel at low temperature due to strain induced martensite transformation during deformation.
     由于变形过程中产生应变诱发马氏体相变 ,亚稳奥氏体不锈钢低温下硬化曲线呈 S形。
短句来源
     The application and main failure forms of ZGMn13 tank track plate are discussed in this paper. By analysing the processing hardening properties of ZGMn13, a new hardening mechanism is put forward that to decrease the stability of austenite can bring about strain induced martensite phase transformation ,the design and optimization of composition are completed on the laboratory condition.
     论述了现用坦克履带板的使用情况和主要失效形式,通过分析ZGMn13的加工硬化特点,提出了降低奥氏体的稳定性,在使用中实现应变诱发马氏体相变的强化机制,并完成了实验室条件下的成分设计和优化.
短句来源
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  形变马氏体
     TRIP and Strain Induced Martensite of 18-8 Stainless Steel
     18-8型不锈钢的相变诱发塑性和形变马氏体
短句来源
     This paper have studied TRIP and strain induced martensite of 18-8 stainless steel under mass production.
     研究了18-8不锈钢在大生产条件下的相变诱发塑性和形变马氏体
短句来源
  形变诱发马氏体
     Test results show that there are high densities of dislocations and twins in the laser shock processed zone, resulting in formation of compressive residual stress and enhancement of hardness in this area. Strain induced martensite was also observed in the laser shock processed 1Cr18Ni9Ti surface.
     结果表明:1 Cr18 Ni9 Ti 激光冲击强化层中有高密度的位错和大量的孪晶,显微硬度显著提高并产生较高的残余压应力,1 Cr18 Ni9 Ti 激光冲击强化区还发生了形变诱发马氏体相变。
短句来源
  诱发马氏体
     TOUGHNESS INCREASEMENT BY STRAIN INDUCED MARTENSITE TRANSFORMATION OF RETAINED AUSTENITE IN Cr12 STEEL
     Cr12钢残余奥氏体应变诱发马氏体相变增韧
短句来源
     Test results show that there are high densities of dislocations and twins in the laser shock processed zone, resulting in formation of compressive residual stress and enhancement of hardness in this area. Strain induced martensite was also observed in the laser shock processed 1Cr18Ni9Ti surface.
     结果表明:1 Cr18 Ni9 Ti 激光冲击强化层中有高密度的位错和大量的孪晶,显微硬度显著提高并产生较高的残余压应力,1 Cr18 Ni9 Ti 激光冲击强化区还发生了形变诱发马氏体相变。
短句来源
     The strain induced martensite took place at subsurface. The energy of martensite tranformation comes from impact energy, value of which is 434J·mo1 -1 .
     亚表层中介稳奥氏体发生应变诱发马氏体相变,转变能来源于外界冲击功,其值为434J·mol-1。
短句来源
     The hardening curve exhibits sigmoid in metastable austenite stainless steel at low temperature due to strain induced martensite transformation during deformation.
     亚稳态奥氏体不锈钢低温拉伸时 ,由于存在应变诱发马氏体相变 ,硬化曲线呈S形。
短句来源
     The hardening curve exhibits sigmoid shape in metastable austenite stainless steel at low temperature due to strain induced martensite transformation during deformation.
     由于变形过程中产生应变诱发马氏体相变 ,亚稳奥氏体不锈钢低温下硬化曲线呈 S形。
短句来源
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      strain induced martensite
    A beneficial effect of strain induced martensite transformation with regards to fatigue crack propagation was found.
          
    Strain induced martensite formation in stainless steel
          
    Strain induced martensite formation in stainless steel
          
    The most rapid crack propagation rates were associated with alloy compositions giving rise to a strain induced martensite transformation during SCC.
          
    This is due to of the development of strain-induced martensite during the deformation process.
          


    The present work is concerned with the 21-6-9 cryogenic steel. The mechanical and physical propertiesas well as the structure stability have been studied systematically from room temperature to liquid he-lium temperature. The 21-6-9 steel makes a feature of strengthening by N and improved cryogenic magnetic pro-perties by Mn. It shows a desirable combination of high strength, high toughness at 4K. and higherantiferromagnetic temperature T_N. T_N is between 130-143 K, depending on the different methods ofmeasurement....

    The present work is concerned with the 21-6-9 cryogenic steel. The mechanical and physical propertiesas well as the structure stability have been studied systematically from room temperature to liquid he-lium temperature. The 21-6-9 steel makes a feature of strengthening by N and improved cryogenic magnetic pro-perties by Mn. It shows a desirable combination of high strength, high toughness at 4K. and higherantiferromagnetic temperature T_N. T_N is between 130-143 K, depending on the different methods ofmeasurement. It has excellent magnetic stability below T_N. It was found that the magnetic permeability is between 1.0019-1.0025 from 300 to 4K. Resultsof the work show that the strain induced martensite transformation occurs during heavy deformationfrom 83 to 4K. The lath martensites were identified by magnetic metallography, by thin filmtransmission electron microscopy and X-ray diffraction analysis to be of two types, i. e., hop ε-mar-tensite and boo a'martensite. No martensitic transformation took place during cooling.

    本文叙述了一种液氦下使用的21-6-9超低温用钢,在室温至液氦温区的力学、物理性能及组织稳定性研究结果。这种钢的特点是以氮强化而用锰改善低温磁性,因此,在液氦下它具有高强度、高韧性和较高的反铁磁转变点T_N,T_N在130~143K之间因测试方法不同略有差异,在T_N以下有优良的磁稳定性,是一个综合性能优异的超导结构用钢。在83、4K拉伸形变50、20%时发生形变诱导马氏体转变。用磁金相、透射电镜金属薄膜技术与X-射线衍射技术鉴定出这种马氏体是hcp结构ε-马氏体及bcc结构的α′马氏体。但即使冷却到液氦中也没有冷却马氏体。

    This paper was carried out to investigate the effects of composition. heat treatment, cold working etc. on stress corrosion cracking (SCC) of 18-5 type ferritic-austenitic duplex stainless steelin NaCl. MgCl_2 and high pure water by U-bend specimen testing and drop-evaporation testing. The main results obtained are as follows: (1) The 18-5 type duplex stainless steel solution-treated in the temperature range 980-1050°C has much higher resistance to SCC in chloride solution than that of 18-8 type austenitic stainless...

    This paper was carried out to investigate the effects of composition. heat treatment, cold working etc. on stress corrosion cracking (SCC) of 18-5 type ferritic-austenitic duplex stainless steelin NaCl. MgCl_2 and high pure water by U-bend specimen testing and drop-evaporation testing. The main results obtained are as follows: (1) The 18-5 type duplex stainless steel solution-treated in the temperature range 980-1050°C has much higher resistance to SCC in chloride solution than that of 18-8 type austenitic stainless steel. The resistance to SCC. however, was rapidly reduced after heated in the temperature range 750-900°C. because of χ-phase (or σ-phase) precipitation at grain boundaries. In addition, heating in the temperature range 500-700°C for short time has less influence on resistance to SCC. (2) The formation of single phase ferrite after welding or heating at 1300°C can decrease the resistance to SCC. Therefore K value (K=Ni_(eq)/Cr_(eq))must be controled. Suitable K value is 0.42. (3) Strain-induced martensite formed in γ-phase during cold deformation would be harmful to the resistance to SCC. (4) The morphology of second phase (γ-phase) has no influence on the resistance to SCC.

    本文探讨了热处理、成分、冷加工等因素对18-5型双相不锈钢应力腐蚀行为的影响.主要结果如下:经980~1050°C固溶处理后,双相不锈钢具有远比18-8型奥氏体不锈钢高得多的耐应力腐蚀性能.然而,750~900°C加热或进行冷加工变形时,由于组织结构的变化将显著降低18-5型双相不锈钢的耐应力腐蚀性能.高温加热后单相铁素体结构的出现亦会使耐应力腐蚀性能下降,因此要控制Ni_(当量)与Cr_(当量)之比值K,使K=O.42左右为宜.此外钢中第二相的存在形态对钢的应力腐蚀行为没有明显的影响.

    Blocks of 304 (metastable) and 310 (stable) austenitic stainless steels have been tested in dry argon against M2 tool steel rings. SEM, TEM and STEM analysis, together with microhardness, have shown that the strain-induced martensite transformation in 304 affects the form and composition of the wear debris and the nature of the transfer layer. The hardness of the transfer layer relative to the hardness of the adjacent deformed base material is also important, as in earlier work on CuBe. During...

    Blocks of 304 (metastable) and 310 (stable) austenitic stainless steels have been tested in dry argon against M2 tool steel rings. SEM, TEM and STEM analysis, together with microhardness, have shown that the strain-induced martensite transformation in 304 affects the form and composition of the wear debris and the nature of the transfer layer. The hardness of the transfer layer relative to the hardness of the adjacent deformed base material is also important, as in earlier work on CuBe. During early stages of sliding, the friction values for both alloys are similar, but whereas the friction continues to rise smoothly to a steady state value for 310, the formation of a' martensite in 304 gives a lower average value of friction coefficient with large fluctuations.

    在干燥氩气气氛中,以亚稳态的304~#奥氏体不锈钢和稳态的310~#不锈钢作为试块,以M_2工具钢作为试环,在LFW-1型环块机上进行滑动磨损实验,用扫描电镜(SEM)、透射电镜(TEM)和扫描透射电镜(STEM)对磨损表面和亚表面进行了观察和分析,结合磨损表面上的显微硬度的测量结果可知,在304~#不锈钢中,形变马氏体的形成对磨屑的生成和成份有所影响,并且也要影响迁移层(Transfer layer)的性质。迁移层的硬度是同与其紧挨着的基体材料形变后的硬度有关系。这一点很重要。这同瑞格内小组过去在铜铍合金上所作工作的结果是一致的。在滑动实验的最初阶段304~#~M_2之间的摩擦系数值同310~#~M_2之间的磨擦系数值是类似的,但随着滑动摩擦实验的进行,310~#~M_2之间的摩擦系数平缓地增长,并且最后稳定在某个值。而304~#奥氏体不锈钢在滑动摩擦实验的进行中形成了α′相形变马氏体,它使304~#~M_2之间的摩擦系数有很大的起伏涨落,但摩擦系数的平均值较低。

     
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