cementite 中文意思是什麼

cementite 解釋
n. 名詞 【冶金】滲碳體，碳化鐵體；西門體（結晶）。

  1. Cementite graphitization in fe - 2. 3 si - 3. 7c alloy

    合金中滲碳體的石墨化
  2. Study on cementite graphitization in cast iron at high temperature

    鑄鐵中滲碳體高溫石墨化研究
  3. Influence of 19cn5 and 20crmnmo sulfurized after cementite on anti - freting performance

    鋼滲碳后硫化對摩擦磨損性能的影響
  4. The results indicated that low graphite spheroidization rate and free cementite were the main causes of poor mechanical property

    試驗結果表明，控制碳當量和球化劑加入量，採用瞬時孕育等可提高球化率；採用預熱砂型等可減少滲碳體。
  5. Excessive imperfections even sub - grained boundaries may be introduced in cementite. this makes the accelerating dissolution and spheroidization of cementite easy. 5

    由於滲碳體的強烈塑性變形，在其內部導入了大量的晶體缺陷甚至亞晶界。
  6. The main causes which lead to tensile abnormal fracture of swrh82b steel rods are the network cementite sod the big brittle inclusion

    摘要通過對swrh82b盤條的拉伸斷口進行分析，認為網狀滲碳體和大顆粒脆性夾雜物等缺陷是引起斷口異常的主要原因。
  7. 3. on the present deformation condition, the cementite in pearlitic steel has more severe plastic deformation capability t - he max shear strain up to 1. 9. 4

    C方式ecap變形條件使珠光體鋼65mn中的滲碳體可以表現出很強的塑性變形能力? ?觀察到的最大切變形達到1 . 9的等效真應變。
  8. For solving the problem of wear and tear of the bended tube of a coal powder boiler in the thermal power plant, the cementite pipe is substituted by the complex steel pipe lined with porcelain

    摘要針對熱電廠煤粉鍋爐彎管存在的磨損問題，採用陶瓷鋼鐵復合管替換碳鋼管，耐磨性提高，壽命延長30倍。
  9. The overall constitutive description for a pearlitic colony is derived from the combination of constitutive models respectively for ferrite and cementite phases and the geometric characteristics with a mixture theory

    對典型珠光體雙相材料bs11在復雜加載史下的響應特性的進行了分析，得到了與實驗相吻合的結果。
  10. It is known that a pearlitic material is composed of numerous pearlitic colonies with randomly distributed orientations, and in each colony there are many parallel ferrite and cementite laminas arranged alternatively

    珠光體材料為兩相材料，它由大量隨機取向的珠光體團組成，每一珠光體團由包含大量鐵素體片和滲碳體片交互疊合而成。
  11. In ecap route c, in order to accommodate the severe shear deformation the deformation form of lamellae cementite in pearlitic steel include periodical bending, periodical shearing and shearing fracture etc

    在c方式ecap變形中，珠光體鋼65mn中的滲碳體以周期性的彎曲變形，周期性的剪切變形，剪切斷裂等形式協調ecap的強烈塑性變形。
  12. The microstructure of lamellae pearlite has evolved ultrafine cementite particles throughout the ferrite matrix uniformly after five passes. the ferrite matrix is homogeneous grains, average grain size is - 0. 3 m. 2

    變形五道次后，片層狀的珠光體組織演變成了超細的滲碳體顆粒均勻分佈於鐵素體基體的組織，鐵素體基體為均勻的等軸晶，平均晶粒大小為0 . 3 m 。
  13. The main results are as the following : ( 1 ) the microstructure of lamellae pearlite has evolved ultrafine cementite particles throughout the ferrite matrix uniformly after four passes. the ferrite matrix is homogeneous grains, and average grain size is - 0. 3um

    主要結果如下： （ 1 ） ecap變形四道次后，片層狀的珠光體組織演變為了超細的滲碳體顆粒均勻分佈於亞微晶鐵素體基體的組織。
  14. Not so - called qi ' s dao, not bad age. it should be ok to be late jin dynasty. the body should be the iron forging in history, the ancient cementite work. if the blade is rigid, it ' s worth collceting

    不是所謂的"戚家刀" ，年代也是不錯的，到后金時期應無太大問題，刀身鍛造應是歷史上的"宿鐵鍛造" ，是古老的滲碳工藝，如果刃部的硬度還好的話，是值得收藏的東西
  15. The fracture and spheroidization of cementite shows obvious anisotropy. there are two possible mechanism about spheroidization of cementite : the fracture cementite lamellae grows up non - uniformly and the fine spherical cementite particles grows up as the core

    滲碳體的破碎和球化表現出明顯的各向異性。滲碳體的球化可能以兩種機制進行：破碎滲碳體片的非均勻長大和細小球狀滲碳體顆粒的形核長大。
  16. A little ferrite and cementite, through the analysis of the strengther and ductiler, we draw the conclusion that this is very important in reality, observing the graphite nodule in sem and tem, there are many spheroiding element and anti - spheroiding elements in the core and edge of graphite nodule, they form the oxides sulphide and nitride. we draw the conclusion that they may be the core of graphite nodule

    在掃描電鏡（ sem ）與透射電鏡（ tem ）上觀察石墨球，與傳統石墨球相比低碳球鐵的石墨球呈細小點狀分佈，球墨中心聚集有較多的球化元素而在邊緣處分佈有反球化元素。石墨球中心存在有氧化摘要一物、硫化物以及氮化物等組成的復雜的化合物，經分析認為它們是球狀石墨形核的有效核心。
  17. On the surface of annealed 45 steel, as the pearlite in it contains cementite phase and has high crystal boundary density, the nucleation and growth of deposits prefer to occur at the pearlite at the beginning during depositioa the coating exists in form of nano - polycrystal layers composed by gathering of nano - sized crystals

    在退火態45鋼表面，由於珠光體組織中含有滲碳體相且具有比較高的晶界密度，因而在沉積初期鍍層優先在此處形核和生長；鍍層在基體表面是以納米尺度的晶粒聚集在一起形成的聚晶體形式存在的。
  18. ( 4 ) which deformation behavior of cementite lamellae in pearlite colonies is closely related to the stress state of cementite which significantly depends on cementite thickness and orientation, especially on cementite thickness. ( 5 ) the lamellar cementite undergoes partial dissolution on the present deformation. the thermodynamical destability of cementite is attributed to a large number of defect in cementite introduced by severe plastic deformation providing evidence for cementite dissolution

    而滲碳體的應力狀態主要是與滲碳體的片層厚度和取向密切相關的，其中滲碳體的厚度起決定性作用； （ 5 ）本實驗變形條件下，滲碳體出現了部分溶解的現象，這是由於強烈塑性變形而在滲碳體中引入大量的缺陷導致其處于高能不穩定狀態從而促使了滲碳體溶解。
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