晶粒間 的英文怎麼說
中文拼音 [jīnglìjiān]
晶粒間
英文
intercrystalline-
Impurities tend to segregate at grain boundaries.
雜質常常在晶粒間界偏析。Two area defects are twins and grain boundaries.
有兩種面積缺陷,即孿生和晶粒間界。Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation
為解釋微合金化50crv鋼強韌化機理,本文通過對不同淬火溫度,回火溫度,回火時間下的力學性能指標的對比及顯微分析,認為微合金元素的細化晶粒,馬氏體的回火分解,殘余奧氏體的轉變,第二相的沉澱析出共同決定了微合金鋼的強韌化情況,特別是由於微合金元素的存在,其細化晶粒及其碳氮化物的沉澱析出,導致鋼的良好的強韌性,並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應,會在硬度曲線中產生明顯的二次硬化現象。For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least
直流電沉積時,基質金屬的沉積連續進行,粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附,重新回到溶液中;採用周期換向脈沖時,反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附,同時,反向脈沖電流對基質金屬的溶解作用,也會促進粒子的脫附,因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加,三種鍍層的晶粒都明顯細化,說明al _ 2o _ 3的存在阻止了晶粒的長大,提高了電沉積過程中晶核的形成速率。The globalization course was that the preformed texture recrystallized and became the granular equiaxed grain, when the temperature rose and the holding time prolonged, the granular grain melted at some area and at the liquid - solid interface the grain globalized at the role of the curvature overheated
過程機制為:擠壓形變組織在加熱過程中首先發生再結晶長大變為顆粒狀等軸晶;隨溫度升高和保溫時間延長,等軸晶發生局部熔化,液固界面的曲率過熱使晶粒外形向球狀轉變。It is indicated after laser remelting, the density of the nano material infiltrated coating is improved and grain size is decreased greatly. in above researches, it is found that the nano material is distributed among general material grains to form inter - granular structure of the coating
研究發現,在各種塗層中納米顆粒明顯填充在粗顆粒間,構成晶間型組織結構;初步測試還表明,在al _ 2o _ 3 + 13 wtIt is found that the nano material is distributed not only among general material grains to form inter - granular structure of the coating but also in the general material grains to form intra - granular structure. micro - crack caused by laser will be eliminated greatly. 3 mechanical performances of the ceramic coating manufactured are tested
得到的結論是經過激光熔覆后的塗層緻密化程度有了很大的提高,比單純的激光重熔塗層還高,納米顆粒不僅填充在晶粒之間,而且還嵌入在大晶粒內部,有利於消除激光作用產生的微裂紋。Ill 2, xi ' an university of technology 2. at the same holding temperature, when the holding time increased, the equal - area - circle diameter trended to uniform, and the distribution of the roundness approached to gaussian distribution
2 、相同等溫溫度條件下,改變等溫時間,等積圓直徑的分佈隨時間的延長趨向均勻,晶粒球化度接近於正態分佈。3. at the same holding time, when the holding temperature changed, the number of the long equal - area - circle diameter grain increased, and the average of the equal - area - circle diameter lengthened, the average of the roundness heightened
3 、相同保溫時間條件下,改變等溫溫度,等積圓直徑大的晶粒隨溫度的升高而增加,球狀化程度高的晶粒數增多,平均等積圓直徑和平均球化度同時增大。The resulting brightness temperature ( tb ), hydrometeor structure, and surface rainfall rate relations show that the ice hydrometeor, espatially the ice at the top of the precipitating cloud, decreases the brightness temperature significantly at 85
結果表明,在85 . 5ghz ,冰相水汽凝結體尤其是處于降水雲頂部的冰晶粒子由於散射輻射而使得亮溫顯著降低。亮溫與冰相粒子的含量之間有很強的相關性。Original porosity is typified by the intergranular porosity of sandstones and the intercrystalline and oolitic porosity of some limestones
原生孔隙度以砂巖粒問孔隙度和某些石灰石的晶體粒間和鮞狀孔隙度為代表。The dominant storage space is the solution micropores, the honeycomb - like solution pores and the kaolinitic intercrystalline pores. the pore throat is small to very small. the main characteristics of the reservoirs are low porosity and low permeability
砂巖的儲集空間以粒內溶孔、粒間溶孔、高嶺石晶間隙等次生微孔隙為主,具有孔徑小喉道細的特點。The result is that this gas pool has simple structure, only forms a little nose - like structure at the district of fenghuangshan ; this pool belongs to delta front sub - facies sedimentary model, the underwater distributary channel and mouth bar is the better sedimentary microfacies ; the physical property of the reservoir is poor, the type of pore of the reservoir rock mostly are intergranular pore, intergranular solution hole and little are intercrystalline micropore ; the influential factors of pore structure and physical property are lithofacies, lithologic character and diagenesis ; the off - take potentia of all the testing well are deadly shortness, the wells have the worth of industrial recovery only under the condition of going through sand fracturing, and in the early of binging into production, the oil and sheath pressure drop rapidly, the production of the well drop rapidly
研究認為該氣藏構造簡單,只在鳳凰山形成了一個小型的鼻狀構造;屬於三角洲前緣亞相沉積模式,水下分流河道和河口壩是有利的沉積微相;儲層物性差,儲層巖石的孔隙類型主要有粒間孔、粒間(內)溶孔及少量晶間微孔;影響蓬萊鎮組氣藏儲層孔隙結構及儲集性的因素有巖相、巖性條件及成巖作用;所有測試井自然產能都極低,必須經加砂壓裂后才有工業開采價值,且投產初期,油套壓下降較快,氣井產量下降迅速。The presence of small amount of liquid at grain boundaries tends to form thin viscous layer which surrounds the finer grains. intergranular fracture may occur at the grain boundaries between two fine grains not covered by viscous phases. the high ductility achieved at low strain rates is generally attributed to dislocation glide - creep accommodation mechanisms
原始晶界上產生少量液相,形成薄的固液共存粘性層並包圍細化的晶粒,沿晶斷裂主要發生在無粘性層的細晶粒間;而在較低應變速率下,三叉晶界位錯攀援?蠕變協調機制鬆弛晶界滑移產生的應力集中,晶界上產生較多液相,有利於晶界滑移進行。Simulating on polycrystalline cyclic deformation indicates that hardening first appears at grain boundary then spreads to grain inside. finally, hardening is not well - distributed in the specimen when deformation is limited
循環塑性模擬對于多晶材料的bauschinger效應和晶粒間硬化過程以及硬化在試樣上的非均勻分佈給出了相應的描述。Another is shear - model fracture which is thought that it is associated with dislocation motion ( shear + rotation ) of crystal at microlevel, fragmentation of solid at mesoscale level and large plastic strains at the macroscopic level
剪切型斷裂在微觀上與晶粒內或晶粒間的滑移和位錯有關,細觀上與集中變形帶中的微剪切面集中有關,宏觀上則與結構內的集中剪切帶有關。The analysis of microstructure of samples showed that the grain of tio2 were very small under 700, the distance of grain became small with temperature increasing, the rate and size of pore was decreasing. the relative density of sample at 900 was 97 % and the grain size of sintered body was about 200nm. when the temperature exceeded 1100, the grain size of body grew up several times ( > 2 m )
Tio _ 2燒結體sem顯微形貌分析表明:低溫( 700 )時坯體內顆粒無明顯長大,燒結體緻密度不高( 80 )晶粒間距隨溫度升高而變小,氣孔率也隨之降低,氣孔尺寸變小;當溫度超過900時,晶粒間連接緊密,燒結體內出現大量絮狀物質,緻密度大幅度提高,達97以上,小氣孔已聚集成大孔洞且分佈均勻,晶粒長大不明顯( 200nm左右) ;當溫度超過1100時,燒結體緻密度有所提高,但晶粒尺寸出現異常長大,長大了十幾倍(達2 m以上) 。Evaluating intergranular corrosion resistance of heat treatable aluminum alloys by immersion in sodium chloride hydrogen peroxide solution
將鋁合金浸入氯化鈉和過氧化氫溶液中進行熱處理時抗晶粒間腐蝕的評定Heat - treatment could enhance electric contact among crystal grains in particles and between the alloy and the substrate, thus the performance was improved obviously
熱處理後由于改善了合金顆粒內部晶粒間,以及合金材料與基體間的電接觸,循環性能明顯提高。The flexural strength and fracture toughness of ti3sic2 material obtained by hot - pressing is 223mpa and 5. 1 mpa m1 / 2 respectively ; the mechanisms of grain bending, grain delamination, crack deflection inside the layered grain, crack deflection and branch, pull out grain are main energy absorbing mechanisms
~ 1ti _ 3sic _ 2材料的彎曲強度和斷裂韌性分別為223mpa和5 . 1mpa ? m ~ ( 1 / 2 ) 。主要能量吸收機制為:晶粒的彎曲、層間滑移,裂紋在層間擴展與偏轉,裂紋在晶粒間沿晶界擴展、分叉和晶粒的拔出。分享友人