結碳化物 的英文怎麼說

中文拼音 [jiētànhuàwù]
結碳化物 英文
sintered carbide
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 碳 : 名詞[化學] （非金屬元素） carbon （c）
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 碳化物 : carbide碳化物金屬陶瓷 carbide cermet; 碳化物耐火材料 carbide refractory; 碳化物陶瓷 carbide ceram...
  1. Structure and precipitation morphology of microalloy carbonitride

    微合金碳氮化物的結構與析出形態
  2. The particles distributed hi the matrix of grey cast iron, but some contact each other. the composite layer extend gradually into the substrate. when volume fraction of wc is 36 wt % and 27 wt %, the matrix of the composite is high chromium cast iron, consist of white carbide bars and the austenite. wc particles distributed uniformly, retaining approximately quondam granular form in the composite layer which has an evident interface area with the substrate, with good bonding strength

    對不同碳化鎢體積分數的灰鐵和低鉻鑄鐵基復合材料的微觀組織結構分析表明：碳化鎢體積分數為52時，復合層內基體為灰口鑄鐵組織，顆粒直接分佈在灰鐵基體上，部分碳化鎢顆粒有相互接觸的現象，基材與復合層之間沒有明顯的過渡；碳化鎢體積分數為36 、 27時，復合層內基體為高鉻鑄鐵，由面塊狀的奧氏體和白條狀碳化物組成，碳化鎢顆粒表面固溶於基體組織中，粒形基本保持完整，分佈均勻，與基體構成冶金結合，基材與復合層之間存在一個明顯的平緩過渡區。
  3. The results show that the solidification microstructure of high speed steel fe - 2 % c - 4 % v - 4 % mo - 5 % cr - x % w ( wt ) contains of martensite, retained austenite structure, and mc, m6c, m2c carbides, and mc / m2c complex carbides by xrd, sem and metallographs. most of the mc carbides locate in the cell and other carbides distribute along the boundary of the cell

    結果表明：經金相組織觀察、 x射線衍射和掃描電鏡分析， fe - 2 c - 4 v - 4 mo - 5 cr - x w合金系高速鋼凝固組織包含馬氏體基體、殘余奧氏體及各種類型的碳化物如mc型碳化物、 m _ 2c型碳化物、 m _ 6c型碳化物和mc m _ 2c類型復雜碳化物，大部分mc型碳化物分佈於晶粒內部，其它類型碳化物則沿晶界呈網狀分佈。
  4. According to the results of the interface action, the metals are classified as following three kinds. one is the affine metals that can react with the diamond to form steady carbides, such as ti, w, cr, mo etc. other is the inert metals that have not any action with the diamond, such as cu etc. the third is catalyst metals that promote the transformation of the diamond into graphite when the metals come into contact with the diamond at high temperature, such as fe, co, ni etc

    按照金屬與金剛石的界面作用結果，將典型金屬分為：與金剛石界面反應形成穩定碳化物的親和性金屬，如鈦、鎢、鉻、鉬等；與金剛石界面不反應的惰性金屬，如銅等；與金剛石界面接觸促使金剛石石墨化的石墨化金屬，如鐵、鈷、鎳等。
  5. The experiments showed that wc and vc can dissolve mutually in the carbonizing reaction. when wc ' s content exceeds vc ' s, vc will dissolve into wc and make wc ' s crystal lattice bring aberrance and become wc1 - x, contrarily when vc ' s content exceeds wc ' s, wc will dissolve into vc and also make vc ' s crystal lattice bring aberrance. the surface cermet composite has high rigidity and well wear - resistance

    （ 7 ）採用鑄造燒結技術，通過加入毗顆粒和v班一vc的原位放熱反應成功制取了碳化物陶瓷質量百分數超過60 %的表面金屬陶瓷材料，實驗證實wc與高溫碳化反應生成的vc相互可以很好的固溶，當wc的含量超過vc時， vc可以固溶到wc中，使wc的晶格發生畸變，成為昵卜: ，反之當vc的含量超過wc的含量時， wc可以固溶到vc中，也會造成vc的晶格畸變。
  6. Analyses for valence electron structures on the faces of synthetic diamond crystal and fe3c type carbides

    型碳化物與人造金剛石晶面價電子結構分析
  7. X - ray diffraction spectrum, empa methods and several tests including mechanical properties, electrochemistry, corrosion wear, on - site plate hanging, the microstructure of steel has been observed and analyzed, performance has been studied, and corrosion - abrasion, fragility mechanism, and microalloy application in ferritic stainless steel have been explored comprehensively. the test results of electrochemistry, corrosion wear and on - site plate hanging have been analyzed. the analytical result shows that crsomo has enough corrosion resistance in phosphoric acid slurry because it has high chromium and low carbon

    通過實驗室的電化學試驗、腐蝕磨損試驗和磷肥廠的現場掛片試驗結果分析，表明： cr30mo鐵素體不銹鋼高鉻低碳的配合，保證其在磷酸料漿中具有足夠的耐蝕性： cr30mo中（ fe ， cr ） _ 23c _ 6 、 （ fe ， cr ） _ 7c _ 3 、 mo _ 2c 、等碳化物硬質點從基體的彌散沉澱析出可提高鋼的硬度和耐磨性，使得鋼在磷酸料漿中具有良好的耐磨蝕效果。
  8. Microstructure of the composite layer was analyzed with help of optical microscope, scanning electronic microscope ( sem ), electronic probe microanalysis ( epma ) and x - ray diffraction ( xrd ). the compacting of the billet and the forming mechanism of the carbide reinforcement were studied based on thermodynamics and kinetics of reaction, sintering theory and the result of dta. at the same time, the wear - resistance of the composite layer was studied under condition of dry sliding friction

    利用光學顯微鏡、掃描電子顯微鏡、電子探針以及x -射線衍射儀，分析了表面復合層的基體組織結構；運用反應熱力學、動力學、粉末燒結理論和燃燒合成理論，結合差熱分析結果，探討了表面復合層壓坯的燒結緻密化原理和碳化物增強相的形成機理；利用坯塊在真空燒結爐不同溫度下的燒結出來的顯微組織分析，模擬出坯塊的燒結過程中的化學反應過程。
  9. The boundary of ferrite has been clarified and fined by adding re into crsomo. the intergranular corrosion induced by solution chromium decreasing can be restrained for nb, v, ti combing carbon in the steel. the wear resistance of stainless steel can be increased for the precipitation of microalloyed carbides

    其中，稀土能夠凈化鐵索體晶界，並起到變質劑的作用，細化鐵素體晶粒，改善不銹鋼的韌性；鈮、釩、鈦能夠與鋼中的碳結合，減少固溶鉻的損失，從而避免晶間腐蝕，同時細小微合金碳化物的沉澱析出可提高不銹鋼的耐磨性。
  10. The result shows that tempered martensite has apparent lath character when temper is between 740 ~ 780, and the hardness of welded joint is 264 ~ 237hv, which can get better performance of the welded joint the lath character of martensite in welded joint disappears, and the carbide in the tempered sorbite of the base metal will aggregate when temper temperature is above 780, and the hardness and plastic property will reduce obviously

    結果表明，在740 ~ 780之間回火，焊縫硬度為264 ~ 237hv ，回火馬氏體板條特徵明顯，可以獲得優良的焊接接頭性能；回火溫度超過780 ，焊縫板條馬氏體特徵消失，母材回火索氏體中碳化物產生偏聚，硬度、塑性明顯降低。
  11. The results showed that the fracture of the tooth - razor was brittle fracture, the material quality was normal, the main fracture reson was that the carbide in the microstructure of the tooth - razor was distributed as reticulation, the brittleness of the razor was increased and the toughness was decreased, so the tooth of the razor was broken by external force when it was working

    結果表明，該剃齒刀的斷齒屬于脆性斷裂，主要是顯微組織中的碳化物分佈不均勻（呈網狀分佈） ，使刀具的脆性增大而強度、韌性下降，導致刀具在使用過程中由於外力的作用發生斷齒。
  12. In this work, using elemental powders as starting reactant materials several carbide powders such as wc, sic, tic, zrc and corresponding alloys had been fabricated by ball - milling technique. x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ) and other measurement techniques had been used to monitor the structural changes of powders after some ball milling time and the properties of the cemented tungsten carbides. and the mechanism for the formation of matal carbides by ma has also been discussed

    本文主要對機械合金化（ ma ）技術在碳化物制備中的應用進行了研究，利用高能球磨，以元素粉末為原料，制備出wc 、 sic 、 tic 、 zrc的粉體以及wc基硬質復合材料，並利用x射線衍射、掃描電鏡、透射電鏡等方法分析和研究了球磨過程粉體的變化以及燒結后硬質合金的性能，對機械合金化制備碳化物的有關機理進行了研究和探索。
  13. The microstructure observation in the microfissures suggests the liquation microcrack results from grain boundary liquation by constitutional liquation of mc carbides and formation of continuous and or semi - continuous low melting liquid films, however, the occurrence of the solid state microcracks can be attributed to the effect of ultrafast transit thermal shock introduced by high energy electron beam

    液化裂紋起源於mc碳化物的組份液化而形成的晶界連續或半連續的低熔點共晶液化膜，固相裂紋形成的則是高能電子束流的快速瞬態熱沖擊效應的直接結果。
  14. The following results are achieved : ( 1 ) in accordance with the empirical electron theory of solids and molecules, considering the number of covalent bond pairs on the strongest bond in a segregation structure na, the elements for matrix - strengthening can be chosen. ( 2 ) on the basis of the available phase - equilibrium thermodynamics calculation of alloy system and phase diagrams, which have been worked out, the contents of alloy elements can be identified with reference to the types, quantity and phase - transformation of carbides. ( 3 ) both the values relating to toughness ( including bending strength, yield strength, impact value of unnotched samples ) and hardness of new dm9 die steel are higher than those of crl2mov die steel

    結果得出： （ 1 ）根據固體與分子經驗電子理論，利用偏聚結構單元的最強共價鍵上的共用電子對數n _ a ，可以選擇工模具鋼基體相的強化元素； （ 2 ）根據合金系相平衡熱力學計算及已有的相圖，可以碳化物類型、數量及其相變確定合金元素含量； （ 3 ）新型dm9鋼在強韌性（抗彎強度、屈服強度、無缺口沖擊值）和硬度方面均高於cr12mov鋼； （ 4 ）以dm9鋼與6crw2si 、 7cr2wmovsi （ dm7 ） 、 h13和cr12mov四種模具鋼的實驗比較，進一步驗證了上述冷作模具鋼合金設計方案是合適的。
  15. Transition metal nitrides / carbides are sorted as interstitial compounds and known as " platinum - like metal " owing to their similar surface and catalytic properties to those of noble metals platinum and rhodium

    摘要介紹了過渡金屬氮化物碳化物獨特的晶體結構和電子性能及其與催化性能的內在聯系。
  16. The change regularity for performance and microstructure of low carbon steel is summarized. the main characteristic of the process is pearlite spheroidizing, increasing of grain boundary width, element segregation and carbide in grain boundary. the change of those microstructure causes the variance of the merchant performance

    通過上述的研究工作，總結了火力發電廠用低碳鋼在長期運行期間性能與微觀結構的變化規律，提出以珠光體球化、晶界寬化、元素晶界偏聚及碳化物晶界析出為主要特徵的低碳鋼微結構變化規律，以及由此而引起的材料機械性能的變化。
  17. Thirdly, the valence electron structure of ceramic multiphase in ti ( c, n ) based cermets were calculated by eet theory, the results showed that na increased with additions of carbides, the order was vc > mo2c > nbc > wc > tac. based on the valence electron structure, the relationship between composition and wettability was set up through multiple linear and polynomial regressions

    最後通過eet理論計算了多元陶瓷相價電子結構，結果表明，添加不同碳化物均能導致n _ a增加，對價電子n _ a增加的效果由大到小依次為vc mo _ 2c nbc wc tac ；以價電子結構為橋梁，通過多元線性回歸及多項式回歸建立了成份與潤濕性的關系。
  18. Abstract : the microstructure of as - cast high cr injection micro - alloying martensitic cast iron and the substructure of martensite in it have been observed under sem and tem. the alloying element distribution related to phase formation, as well as the various types of branch and distortion of carbide in the martensitic cast iron have been explored by using x - ray diffraction and electron probe analysis

    文摘:應用掃描電鏡和透射電鏡研究了噴射微合金化的鑄態馬氏體高鉻鑄鐵顯微組織及馬氏體的亞結構，並藉助x射線衍射與電子探針分析探討了合金元素的分佈與相形成的關系，以及碳化物的不同形式分枝與畸變。
  19. Abstract : several basic problems with the trace elements in cast irons which was studied by using thermodynamical theory was intorduced. these problems included : the solubility of trace elements in cast irons, the influences of trace elements on the crystallization temperature of molten irons, and the tendency to form carbide in molten cast irons

    文摘:介紹了運用熱力學理論研究鑄鐵中微量元素的幾個基礎問題，其中包括微量元素在鑄鐵中的溶解度、對鐵液結晶溫度的影響以及在鑄鐵溶液中形成碳化物的傾向。
  20. This dissertation aims at revealing the micro - mechanism of the rare earth ' s effects on improving the properties of iron - based diamo nd composites. in addition, to combine the investigation of the effects of rare earth with the effects of strong carbide - forming element ti, tih2, which has been widely used as a carbide - forming element, was also added to the iron - based matrix in order to evaluate its effects on the metal bond and diamond segments

    本文針對這些問題，利用稀土元素獨特的物理化學性能，研究稀土元素改善鐵基金剛石復合材料性能的微觀機制，並對作為強碳化物形成元素而廣為使用的tih _ 2在鐵基胎體及金剛石復合材料中的作用進行評價，把研究稀土元素的影響與強碳化物形成元素ti的影響相結合。
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