韧化机理,toughening mechanism
1)toughening mechanism韧化机理
1.The work conducted by the predecessors is analysed and compared in the following five respects: improving of fracture toughness and other properties by means of controlling microstructure, effects of loading rate, temperation, and environment on the fracture andtoughening mechanisms, deformation and fracture behavior,toughening mechanisms, and, finally, the fracture mechanisms of TiAl base.从显微结构的控制提高其断裂韧性及其它性能 ,加载率、温度和环境对TiAl基合金的断裂及韧化机理的影响 ,变形和断裂行为 ,韧化机理和断裂机理的研究情况等五个方面对前人的工作进行了分析与比较 ,有助于对TiAl合金的变形与断裂 ,断裂过程及其韧化机理更进一步的理解 。
2.The strengthening andtoughening mechanism of molybdenum alloys was summarized,several typical molybdenum alloy\"s strengthening andtoughening mechanism and research status were described in details,such as TZM molybdenum alloys,rare-earth molybdenum alloys,Si-Al-K doped molybdenum alloys.综述了钼合金的强韧化机理,详细介绍了几种典型钼合金(TZM钼合金、稀土钼合金、Si-Al-K掺杂钼合金)的强韧化机理与研究现状。
英文短句/例句
1.Study on Strengthen and Toughening Mechanism of Al-Cu Alloys Casts Formed by Squeeze Casting;挤压铸造铝铜合金强韧化机理的研究
2.The Microstructure and Toughening-Strengthening Mechanism of the Al_2O_3-matrix Composite Ceramics;氧化铝基复相陶瓷的显微结构与强韧化机理
3.Preparation and Mechanism of Strengthen and Toughening of Al_2O_3/ZrO_2 Ceramics CompoundsAl_2O_3/ZrO_2陶瓷复合材料的制备和强韧化机理研究
4.Microstructure and Strengthening-toughening Mechanism of Mg-RE(Nd, Y)-0.48Zn-0.52Zr AlloysMg-RE(Nd,Y)-0.48Zn-0.52Zr合金显微组织及强韧化机理
5.Research on microstructure and strength-toughening mechanism of acicular ferrite pipeline steel针状铁素体管线钢组织及强韧化机理研究
6.Studies on the Super-Toughened Mechanism of Poly-(phenylene Oxide) Alloy and the Relationship between Its Micro-Morphology and the Sub-cluster Parameters;聚苯醚合金的超韧化机理及其亚微相态与群子参数关系的研究
7.Study on the Relationship between Super Toughening Mechanism for Multiphase Polymer Materials and Sub-cluster Scale;多相高分子材料高强超韧化机理与群子标度间相关性的研究
8.Preparation of Al_2O_3 Doped 3Y-TZP Nanopowders and Investigation into the Strengthening Mechanics of the Composite Materials;Al_2O_3掺杂3Y-TZP纳米粉体的制备及其材料强韧化机理的研究
9.Methods and Mechanisms of Strengthening-toughening of NiAl Based CompositeNiAl基复合材料的强韧化方法及机理
10.The mechanism of improving the toughness of the weld is the finer grain size and the lower hardness of the weld.焊缝韧性改善的机理为近缝区晶粒细化和硬度降低.
11.Ossification of Thoracic Ligamentum Flavum: The Pathogenesis and Surgical Methods (Reports of 20 Cases);胸椎黄韧带骨化症的发病机理及手术方法（附20例病例报道）
12.Research on Mechanism and Preparation for in Situ Columnar Crystal Toughened Al_2O_3 Ceramic;原位生长柱状晶复合增韧氧化铝陶瓷制备方法及机理研究
13.Effect of Annealing Treatment on the Formation of Slowly Digestible Starch韧化处理对缓慢消化淀粉形成的影响
14.Micro-Scale Effect on Damage of Ductile Materials and Its Mechanism;韧性材料损伤的微尺度效应及其机理
15.Study on the Toughening and Strengthening Mechanisms of PP/UHMWPE Alloy;PP/UHMWPE共混合金增韧增强机理研究
16.Toughening Mechanisms of PVC/SAN/ABS BlendsPVC/SAN/ABS共混物的增韧机理
17.Strengthening and Toughening Mechanism of Steel Fiber Reinforced High-strength Concrete and Design Method Based on Toughness;钢纤维高强混凝土增强、增韧机理及基于韧性的设计方法研究
18.Toughening Effect of PEB-g-MAN on SAN Resin and Its Toughening MechanismPEB-g-MAN增韧SAN树脂的力学性能及增韧机理的研究
相关短句/例句
strengthening and toughening mechanism强韧化机理
1.The structure,morphology,hardness,breaking toughness,high-temperature yield strength,strengthening and toughening mechanism of the RE/MoSi2 composites were investigated by means of X-ray diffraction(XRD),scanning electron microscope(SEM),Vichers hardness tester,electrical omnipotence material tester and dynamic heat simulate in this paper.采用X射线衍射仪(XRD),扫描电子显微镜(SEM),维氏硬度计,电子万能材料试验机,动态热模拟机研究了稀土/MoSi2复合材料的结构、形貌、硬度、断裂韧性、高温屈服强度、强韧化机理等。
3)mechanism of strengthening and toughening强韧化机理
1.Themechanism of strengthening and toughening of crack-free Fe-based alloy with high hardness for laser cladding;高硬度激光熔覆专用Fe基合金强韧化机理
2.The authors review some research results of ceramic matrix nanocomposites both at home and abroad in recent years, including mechanical properties and their factors, uniform dispersing of nano particles and mixed with ceramic matrix, shape forming of the materials, its structure, themechanism of strengthening and toughening.结合部分作者的工作，综述近年国内外对纳米复合陶瓷材料的力学性能及影响因素、纳米颗粒在基质中均匀分散和混合及材料成型工艺、内部结构、强韧化机理等方面的研究结果。
3.The paper introduces its concept,types and characteristics about an-quenched and an-tempered steel,and sum- marizes the application of un-quenched and un-tempered steel for sucker rod developed in China,then analyses themechanism of strengthening and toughening.文章介绍了非调质钢的概念、分类及其特点,总结了我国研制的非调质抽油杆钢的应用情况,分析了钢中元素作用及强韧化机理,指出不断发展的新型非调质钢将会使抽油杆生产迈上新台阶。
4)toughening mechanism增韧机理
1.Study on Toughening Mechanism of Low Molecular Weight PC/PP Blend;低摩尔质量PC/PP共混体系的增韧机理研究
2.Study on Toughening Mechanism of Co-crosslinked PP/LLDPE/SBS Blends;PP/LLDPE/SBS交联共混体系增韧机理的研究
3.This paper introduces the present situation of toughening modification of epoxy resin adhesive and recommends the typicaltoughening mechanisms and the applications of epoxy adhesive.综述了近几年环氧树脂胶粘剂增韧改性研究的现状,介绍了各种增韧机理及应用。
5)toughing mechanism增韧机理
6)toughening mechanisms增韧机理
1.Appearance of fracture andtoughening mechanisms of Ti(C,N)-based cermets;Ti(C,N)基金属陶瓷断口形貌及增韧机理
2.Thetoughening mechanisms of this composite were simply discussed.综述了目前UPR/纳米SiO2复合材料的制备方法,包括原位聚合法、共混法、分子自组装及组装法,介绍了UPR/纳米SiO2复合材料的优异性能,并对其增韧机理作了探讨。
3.The development of the super fine grain-ceramics in Si-Al-Zr-O system with high content of ZrO_2 is introduced in this paper;The chemical composition designing,method of preparation andtoughening mechanisms are discussed;The current status and the latest progress are reviewed.介绍了锆系微晶陶瓷的发展历程,着重阐述了其成分选择、制备方法和增韧机理,并报道了该系微晶陶瓷的最新近展,展望了其发展趋势。
延伸阅读
铸铁石墨球化机理铸铁石墨球化机理mechanism of nodular graphilization in cast ironzhutie sh一mo qiuhuaj，11铸铁石墨球化机理(tneehanism of nodulargraphitization in east iron)主要指石墨晶核的产生及性质、球状石墨的长大以及球化元素的作用。经过铸铁冶金工作者的长期努力，在球状石墨形成机理方面取得了不少研究成果，如关于球状石墨的结构;形成球状石墨的条件;石墨球能够从铁液中直接析出，而且能单独的生长;加入球化剂的必要性，球化剂的作用等方面均有比较一致的认识。但也存在着不少问题有待研究解决。核心说较早提出的一种学说，认为晶核的晶格结构是决定石墨成球的条件。用镁处理铁水使石墨球化，是因为能生成具有立方晶格结构的Mgo、Mgs、MgCZ等化合物，碳原子从四周以相同的速度向其扩散聚集而成球状石墨。用扫描电镜和X射线显微分析技术对球状石墨进行仔细观察表明，在球状石墨中心有尺寸约如m的外来夹杂微粒，而且认为它们是球状石墨的晶核，它们具有双层结构。在用硅铁镁合金进行球化处理和用硅铁进行孕育处理的球墨铸铁中，晶核的最中心部分由钙和镁的硫化物组成，其尺寸约0.05拜m，晶核的外层则由镁、铝、硅、钦的氧化物组成;在这个内外层之间和外层上生长的石墨之间，均有一定的晶面对应关系。由此认为，镁钙等元素在球状石墨晶核形成过程中的作用是通过组成这些元素的硫化物和氧化物而去除溶体中的氧和活性硫;同时，这些元素的硫化物及氧化物夹杂微粒就构成了球状石墨晶核的最中心部分和外层部分物质。但直接用Mgs微粒处理铁水使石墨球化的实验却未成功，因此球化元素的形核作用就难以断言是促成石墨球化的主要原因。过冷说认为球状石墨的出现是铁水过冷的结果，随着过冷增大，铁水的表面张力增加，促使生成相朝着比表面积最小的形态方向发展。但这个学说未能揭示在不同过冷度下，石墨在生长机制方面有何不同之处。界面能说在经镁或饰处理的球墨铸铁中，铸铁熔体和石墨晶体的棱面(10 10)之间的界面能量高于熔体和石墨晶体基面(0001)之间的界面能量，使石墨向垂直于基面的晶向[0001二生长成球墨。而在含硫较多的灰口铸铁中，铸铁熔体和石墨不同的晶面间的界面能量关系则相反，因而在灰口铸铁中使石墨在垂直于柱面的晶向[101叼生长成片墨。不过这个原理仅对完全晶体适用;从热力学来看论述是正确的，但缺乏从动力学角度对石墨结构的形成进行分析。位错生长说在球状石墨成长的过程中，同样存在着大量的晶体缺陷，在球状石墨的生长中起主要作用的是螺旋位错。由于这些位错的存在，在晶体表面造成的螺旋台阶的旋出口是碳原子作为二维晶生长的最有利位置。
