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   韧性断口 的翻译结果: 查询用时:0.745秒
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韧性断口
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  ductile fracture
     With C content fixed at lower level, as Cr/C increases, amounts of carbides increase greatly, forms of carbides change from fracted reticulation and isolated stick to reticulation, impact fracture changes from ductile fracture to brittle fracture, impact toughness decreases, but corrosion resistance, hardness and wear resistance increase.
     当C含量固定在较低水平时,随着Cr/C的增加,组织中碳化物数量急剧增加,碳化物形态由断网状和孤立的棒状向网状转变,冲击断口由韧性断口过渡为脆性断口,冲击韧性降低,而耐蚀性、硬度和耐磨性提高,但当C含量较高(2.5%)时,随着Cr/C的增加,组织中的碳化物数量增加不明显,且碳化物均为网状结构。
短句来源
     The toughness experiments indicate that the fracture of macro-structure of the austenite-bainite ductile cast iron is of brittle fracture, while the fracture of micro-structure is of mainly ductile fracture with dimple appearance.
     韧性实验表明:奥氏体-贝氏体球铁的断口,宏观结构呈脆性断口,微观结构呈韧性断口,即主要形成韧窝断口。
短句来源
     With Cr content fixed, as Cr/C increases, amounts of carbides decrease, forms of carbides change from reticulation to fracted reticulation and isolated stick, impact fracture changes from brittle and ductile fracture to ductile fracture, impact toughness increases, but corrosion resistance, hardness and wear resistance decrease.
     当Cr含量固定时,随着Cr/C的增加,组织中碳化物数量减少,且由网状向断网状和孤立的棒状转变,冲击断口由脆性加韧性的混合型断口过渡为韧性断口,冲击韧性提高,而耐蚀性、硬度和耐磨性降低;
短句来源
     Experimental results showed that the ratio of cleavage fracture to ductile fracture on fracture surface increased gradually with increasing hydrogen concentration and decreasing stress or strain rate.
     结果表明:随氢浓度增加、应力减小或应变速率降低,试样断口逐渐从韧性断口向脆性断口过渡;
短句来源
     The results show that the ratio of cleavage fracture to ductile fracture on fracture surface increases gradually with increasing hydrogen concetration and decreasing stress.
     结果表明 :随氢浓度增加、应力减小 ,试样断口逐渐从韧性断口向脆性断口过渡 ;
短句来源
更多       
  tough fracture
     Mechanical properties of the quenched ZA53 alloy is σ_b =245 MPa and δ= 12% and the fracture morphology transforms from mixed fracture to tough fracture due to microstructure fully transforming single solid solution phase after solid solution at 343℃for 17 h.
     在343℃固溶17h淬火后,合金组织完全转变为单相固溶体,合金的室温力学性能较好,σb=245MPa,伸长率为12%,合金的拉伸断口形貌由混合型断口转变为韧性断口
短句来源
     The fracture surface of 1Cr18Ni9Ti steel welded joint exhibits hybrid tough fracture of dimple and tear ridge,and dimple becomes tiny and uniform with the temperature decreasing.
     拉伸试样断口形貌分析结果显示,1Cr18Ni9Ti钢焊接接头的拉伸试样断口均为韧窝和撕裂棱混合型韧性断口,韧窝随温度的降低而变得细小、均匀。
短句来源
     The results show that the strength and elongation of the TIG welded joint is higher than that of the MMA at 77K. The fracture surface of 1Cr18Ni9Ti steel welded joint exhibits hybrid tough fracture of dimple and tear ridge , and dimple of the TIG welded joint fracture surface is tiny and uniform.
     结果表明:在77K下,1Cr18Ni9Ti钢TIG焊接头的强度、伸长率均比MMA焊接头的高; 两者拉伸断口均为韧窝和撕裂棱混合型韧性断口,但TIG焊接头断口中韧窝的尺寸细小而均匀。
短句来源
     The results show that the bending strength of linear friction welded joint of GH4169 is proportional to the bonding rate and the fracture is tough fracture.
     结果表明,GH4169线性摩擦焊接头的弯曲强度与焊合率成正比线性关系,断口为韧性断口;
短句来源
     The Mg nanoparticles/PP composite exhibit tough fracture characteristics compare to PP which shows the brittle fracture at impact.
     扫描电镜分析表明,由于纳米Mg的存在,冲击断口由纯PP的脆性断口转变成纳米Mg/PP复合材料的韧性断口
短句来源
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  “韧性断口”译为未确定词的双语例句
     HRC≥50, A KU ≥40J/cm 2 .The impact fracture is gliding fracture.
     洛氏硬度大于50HRC,冲击韧度大于40J/cm2,且冲击试样断口为韧性断口
短句来源
     Study of Fractography of stretched zone in ZL-205 Alloy Fracture Toughness Specimens
     ZL-205合金断裂韧性断口延伸区的研究
短句来源
     The fracture of constant load tests was transgranular SCC mode,whereas the SSRT fracture surface was tough and without SCC fracture characteristics.
     但两种方法中渗铝试样的断口形态表现出差异 :恒载荷试验为穿晶型SCC断口 ,而SSRT无SCC断口特征 ,为韧性断口 .
短句来源
     The fracture modes of ordered and disordered Ni_3Mn in vacuum and in air are all ductile.
     扫描电镜观察表明:无序态和有序态Ni3Mn在真空和空气中全部为韧性断口.
短句来源
     The causes of the decrease in toughness and intergranular fracture of impact toughness specimen in 16NiCo and 23NiCo steels have been studied by means of SEM, TEM and Auger spectroscopy.
     用透射电镜、扫描电镜及俄歇能谱研究了16NiCo钢和23NiCo钢长时间回火后韧性降低及冲击韧性断口出现沿晶断裂的原因。
短句来源
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  ductile fracture
The energy of ductile fracture of smooth and notched (Charpy) specimens during both static and impact loading is shown to substantially depend on the uniform strain and its temperature and radiation-hardening dependences.
      
The behavior of localized plasticity macrodomains is experimentally studied at the final stage of the plastic flow in going to necking and ductile fracture in fcc, bcc, and hcp materials.
      
The SEM results show that the fracture modes of the sintered samples prepared by cold compaction and warm compaction at 700 MPa are the mixed mode of ductile fracture and brittle fracture, and obvious dimples can be found in some regions.
      
The experiments show that the ductile fracture is controlled by the micro void mechanism, and the critical void growth ratio can be used as the criterion of ductile fracture.
      
Wood exposed to the electron beam during testing showed a glassy fracture, while wood exposed to high vacuum but not to the electron beam showed a ductile fracture.
      
更多          
  tough fracture
The plastics made from the 2 M urea-modified soy proteins showed improvements in elongation, tough fracture behavior, and water resistance.
      
At temperatures above Tbu the specimens bend with α=120°C without fracture, consequently, the Mo-Re alloys like pure molybdenum develop no tough fracture.
      
The concept of partially tough fracture is introduced, which is observed in a wide range of operating temperatures.
      


The behaviour of hydrogen induced delayed cracking (HIDC, i. e. slow crack growth) in a type 310 and a type 16-20-20 (K55) stable austenitic stainless steels along with a type 321 unstable austenitic stainless steel were investigated with a single-edge notched tensile specimen. It was found that HIDC could occur in all 3 types of stainless steels and the threshold values were K_(IH)/K_c =0.55, 0.70 and 0.80 for stainless steels 321, 310 and K-55 respectively, if the specimens were charged with load. HIDC could...

The behaviour of hydrogen induced delayed cracking (HIDC, i. e. slow crack growth) in a type 310 and a type 16-20-20 (K55) stable austenitic stainless steels along with a type 321 unstable austenitic stainless steel were investigated with a single-edge notched tensile specimen. It was found that HIDC could occur in all 3 types of stainless steels and the threshold values were K_(IH)/K_c =0.55, 0.70 and 0.80 for stainless steels 321, 310 and K-55 respectively, if the specimens were charged with load. HIDC could also occur if the precharged specimens were tested under constant load in air. No HIDC, however, occurred in the precharged and then outgassed specimens. It indicates that the delayed cracking in stable austenitic stainless steels is induced by atomic hydrogen. Because there is no hydrogen induced α' martensite in type 310 and K-55 stainless steel, the existence of α' is not necessary for the oecurrenee of HIDC in the austenitic stainless steels, though it can facilitate HIDC. The mode of hydrogen induced delayed fracture in either stable or unstable austenitie stainless steels is correlated with K_I value, the fracture surface was changed from ductile to brittle as K_I is decreased.

用单边裂纹恒载荷试样研究了三种奥氏体不锈钢(18-8,310,K-55)充氢后的氢致滞后开裂行为。三种钢在恒载荷下充氢都出现滞后断裂,其门槛值分别约为K_(IH)/K_c=0.55,0.70和0.80,如果预先充氢再在空气中加载,也能产生氢致滞后开裂,如充氢后除气,则不能,这就表明,无论是不稳定型(18-8)还是稳定型(310,K-55)奥氏体不锈钢都能产生氢致滞后开裂。18-8钢充氢时能发生马氏体相变,从而促进氢致开裂过程,其K_(IH)/K_c比不产生马氏体的310和K-55要低。所有奥氏体不锈钢的氢致滞后断口形貌都和K_I有关。当滞后断裂的K_I较大时是韧性断口,K_I较小时则是脆性断口。

An investigation was made of the effect of the isothermal quenching at dif-ferent temperatures in the martensitic range on the structure and properties of 30CrMnSiNi2A steel.To sum up the results from the tests of stress corrosion,lowcyclic fatigue,fracture toughness,fracture feature and conventional mechanicalproperties,the optimum isothermal quenching regime was ascertained.Experimentalresults show that the superior comprehensive properties of the steel may be ob-tained by treatment of isothermal quenching...

An investigation was made of the effect of the isothermal quenching at dif-ferent temperatures in the martensitic range on the structure and properties of 30CrMnSiNi2A steel.To sum up the results from the tests of stress corrosion,lowcyclic fatigue,fracture toughness,fracture feature and conventional mechanicalproperties,the optimum isothermal quenching regime was ascertained.Experimentalresults show that the superior comprehensive properties of the steel may be ob-tained by treatment of isothermal quenching at 285℃ then tempering at 280℃.It is believed that the lower bainite and residual austenite are the chief factors inimprovement of toughness and plasticity of the steel,however,the tempered mar-tensite is an important factor to ensure its high strength.

本文研究了30CrMnsiNi2A钢在马氏体区不同温度等温淬火对钢组织和性能的影响,从应力腐蚀、低周疲劳、断裂韧性、断口特征和常规机械性能的综合考虑来确定最佳等温淬火工艺.试验结果表明,285℃等温淬火280℃回火的热处理工艺可以获得比较良好的综合性能,并且认为下贝氏体和残留奥氏体是使该钢的韧性和塑性提高的主要因素,而回火马氏体则是保证钢的强度的重要因素.

This paper discusses the effect of the combined treatment (room temperatur deformation plus nitrocarburizing)on the mechanical behaviours of 16Mn steel The results show that when the specimens are undeformed, their embrittlement values are very high, whereas their tensile strength and impact toughness are very low. But when they are treated by deform-nitrocarburizing their tensile strength, elongation and impact toughness grow remarkably with the increase of their deformarion degree, meanwhile there occurs a...

This paper discusses the effect of the combined treatment (room temperatur deformation plus nitrocarburizing)on the mechanical behaviours of 16Mn steel The results show that when the specimens are undeformed, their embrittlement values are very high, whereas their tensile strength and impact toughness are very low. But when they are treated by deform-nitrocarburizing their tensile strength, elongation and impact toughness grow remarkably with the increase of their deformarion degree, meanwhile there occurs a transformation in the fractures of those specimens, i. e., cleavage fractures are transformed into dimple fractures. The experimental results also show that strengthening and tougthening of the deformed and nitrocarburized specimens will occur no onty in pure iron, low carbon steels, (08 steel and 20 steel,) but also in low carbon low alloy steels.

本文研究了室温形变加软氮化复合处理后对16Mn钢力学性能的影响,试验结果表明:没有形变的试样脆性严重,拉伸强度及冲击韧性均很低;随着形变量的增加,拉伸强度,塑性和冲击韧性随之有较大幅度的增加;与此同时,断口形式由没有形变的解理脆性断口转变为韧窝形韧性断口。本试验再一次指出,不仅纯铁、08F钢及20钢等低碳钢中在形变软氮化复合处理后存在着强韧化现象,在低碳低合金钢16Mn中亦同样存在。

 
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