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the ductile
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  韧性
     The ductile shear zone was formed under a temperature of about 400℃, differential stress of about 30 MPa, and strain rate of1.9×10-13s-1.
     此韧性剪切带形成时的温度约400℃,差异应力约30MPa,应变速率约1.9×10-13s-1。
短句来源
     On strain characters of rocks and minerals within the ductile shear zone, it is calculated that the strain value is 1.24-2.32,the forming depth is 13-20km,the temperature is 450-650℃, the surrounding pressure is 325-550MPa, the biggest shear stress is 113-141MPa and the discrepant stress is 31-35MPa.
     据韧性剪切带中岩石矿物的应变特征,计算出该韧性剪切带剪应变值为1.24—2.32,形成深度为13—20km,温度为450—650℃,围压为325—550MPa,最大剪应力为σ=113—141MPa,差异应力为31—35MPa。
短句来源
     But in the case of 1.05the ductile initiation toughness.
     当1.05韧性下降。
短句来源
     The weld metal is possessedof single austenite structure,it and base metal both exhibit the ductile fracture at 77K.
     焊缝金属77K的冲击韧性相当于两相区处理的9%Ni钢,且高于1Cr18Ni9Ti.焊缝金属为单相奥氏体组织,它与母材在77K呈现塑性韧窝断裂。
短句来源
     And K-Ar and Ar-Ar ages of biotite from the north Xidatan granite, 134. 47-145. 3 Ma, indicate the ductile shearing time of the granite.
     西大滩盆北花岗岩的黑云母K-Ar和Ar-Ar同位素年龄为134.47-145.3 Ma,指示晚期韧性剪切变形时代。
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  “the ductile”译为未确定词的双语例句
     The test results show that the ductile brittle transition temperature zone of steel 30Mn2V is -70 ℃~ -80 ℃ .
     实验证明 :30Mn2V钢的脆性转化温度范围为 -70~ -80℃。
短句来源
     Influence of strain fatigue on J_(IC)—the ductile fracture toughness of steels
     应变疲劳对钢材延性断裂韧度J_(IC)的影响
短句来源
     Study on the Ductile/Brittle Fracture Transition Characteristics of HQ785C Steel with Instrumented Impact Tests
     HQ785C钢示波冲击试验韧脆断裂转变特性研究
短句来源
     Among amorphous Fe_(80)B_(20-x)Si_x alloys,the alloy,which contains 11.5at% Boron and 8.5at% Silicon,has lower susceptibility to annealing embrittlement; but the ductile—brittle transition of this alloy also occurs before theonset of crystallization.
     在非晶态 Fe_(80)B_(20)-xSix 系列合金中,B、Si 含量分别为11.5at%和8.5at%的合金具有最小的退火脆化敏感性,但其脆化仍发生于晶化开始之前.
短句来源
     A Random Model for the Ductile/Brittle Transition for 40Cr Steel
     40Cr钢韧脆转变区域的一种细观随机模型
短句来源
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  相似匹配句对
     Fracture of Ductile Materials
     延性材料的损伤断裂
短句来源
     Preparation and Application of Ductile Iridium
     塑性铱的研究及其应用
短句来源
     The Austenitic Dendrites in Ductile Iron
     球铁中的奥氏体枝晶
短句来源
     The penetration mechanism is ductile penetration.
     因而该情况下,靶板发生扩孔型破坏。 侵彻机理为延性侵彻。
短句来源
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  the ductile
The ductile β phase with a volume fraction of about 30% possesses a developed dendritic morphology.
      
Theory of ductile-brittle transitions in steels and iron alloys: Substantiation of the ductile-brittle transition mechanism
      
On the theory of the ductile-brittle transition (Cold brittleness)
      
In the course of this process, the brittle upper crust was detached from the ductile lower crust.
      
For the filled composites, the criterion for the ductile-to-ductile transition is the equality of yield and draw stresses.
      
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Internal friction in several molybdenum-titanium alloys containing oxygen was measured. Besides the 110℃ peak associated with the diffusion of oxygen between Mo-Mo interstitial sites, another peak around 55℃ was observed which was shown to be associated with the stress-induced micro-diffusion of oxygen between Mo-Ti interstitial sites. The activation energy for the latter process was found to be 22600 cal/g-atom. The condition for the appearance of the 55℃ peak is the presence of both titanium and oxygen in...

Internal friction in several molybdenum-titanium alloys containing oxygen was measured. Besides the 110℃ peak associated with the diffusion of oxygen between Mo-Mo interstitial sites, another peak around 55℃ was observed which was shown to be associated with the stress-induced micro-diffusion of oxygen between Mo-Ti interstitial sites. The activation energy for the latter process was found to be 22600 cal/g-atom. The condition for the appearance of the 55℃ peak is the presence of both titanium and oxygen in molybdenum.The partition functions and the potential energy difference of oxygen atoms in the two interstitial sites were calculated by means of a standard statistical method. Furthermore, it was shown that titanium would enlarge the solubility of oxygen in molybdenum, thus lowering the ductile-brittle transition temperature of molybdenum-titanium alloys.

研究了含氧的几种Mo-Ti合金的内耗,观察到除了氧在Mo-Mo间隙位置扩散所引起的110℃内耗峯外,还有一个由于氧在Mo-Ti间隙位置扩散所引起的55℃内耗峯,后一过程所包含的激活能为22,600卡/克原子。用统计方法计算了氧原子在这两种间隙位置的配分函数及位能差。此外,还指出钛会扩大氧在钼中的溶解度,因而降低Mo-Ti合金的脆性转变温度。

It has been found from field observation and laboratory study that the fault rocks on the Beishicheng fault zone in Miyun region, Beijing can be classified into four main types: cataclasite series, mylonite series, pseudotachylite and fault gouge. They have distinct features in mineralogy, deformation and microfabric, representing the different mechanisms of their origin. It is shown by the features and occurrences of the fault rocks in this region that the fault zone had experinced two stage of movement of...

It has been found from field observation and laboratory study that the fault rocks on the Beishicheng fault zone in Miyun region, Beijing can be classified into four main types: cataclasite series, mylonite series, pseudotachylite and fault gouge. They have distinct features in mineralogy, deformation and microfabric, representing the different mechanisms of their origin. It is shown by the features and occurrences of the fault rocks in this region that the fault zone had experinced two stage of movement of different mechanical behavior: the ductile shearing in the early stage and the brittle fracturing in the late stage accompanied by seismic events.The existences of pseudotachylite and cataclasite types of fault rocks can be regarded as the potential evidences for seismic events. The former is produced by preferred melting of minerals in country rocks due to the frictional heating on the fault plane during seismic faulting, while the later is a product of brittle fracturing due to rapid release of strain energy. During rapid frictional heating process of seismic faulting, the mafic minerals are the first to be melted, but the felsic minerals are melted at the temperature much higher than the mafic ones, so that the SiO2 contents in the pseudotachylite are much lower than that in the country rocks. That is why the crush breccia and breccia in pseudotachylite consist mainly of felsic materials, and this characteristics are completely different from that of magmatic origin.

通过对北京密云北石城断裂带的野外和室内工作,该断裂带的断层岩可分为四种类型:碎裂岩类、糜棱岩类、假熔岩和断层泥。它们具有不同的矿物学、形变和组构特征,分别代表不同的成因机制。假熔岩和碎裂岩类断层岩的存在,可作为古地震事件的可能证据。前者是地震断层运动在断层面上摩擦增温,引起围岩中矿物的选择性熔化形成的。在该断裂带中可能发生不止一次的古地震事件。断层岩特征和产状表明,该断裂带经历了两种不同力学性质的运动,早期为韧性剪切;晚期为脆性破裂,并伴有地震发生。

The criterion of maximum shear stress for crack extension, namely, the critical fracture stress at the crack tip,(σ_(yy))_c=σ_F was verified to be applicable to the ductile fracture in the range between—100℃ up to room temperature.Considering the independence of this criterion and the critical fracture stress at crack tip upon temperature, the observed phenomena of which J_c decreases with decreasing temperature may be qualitatively explained. The specimen geometry and the curvature radii of notch root...

The criterion of maximum shear stress for crack extension, namely, the critical fracture stress at the crack tip,(σ_(yy))_c=σ_F was verified to be applicable to the ductile fracture in the range between—100℃ up to room temperature.Considering the independence of this criterion and the critical fracture stress at crack tip upon temperature, the observed phenomena of which J_c decreases with decreasing temperature may be qualitatively explained. The specimen geometry and the curvature radii of notch root are not affected with the average fracture strength, but affected with the true fracture strain. Thereby, the fracture strength is probably an important descriptive parameter of mechanical properties of materials.

本工作在-100℃—室温的温度范围内验证了最大切应力断裂判据对于延性断裂是适用的。利用此判据和裂纹顶端临界断裂应力(σ_(yy))_c与温度基本无关的期律可以定性地解释J_c和δ_(p,c)对温度的关系。试验还表明平均断裂强度基本上与试样几何和缺口顶端曲率半径无关。

 
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