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martensite

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martensite n.馬丁體〔顯微鏡下所見的煉鋼的針狀組織〕。adj.-s...

n. 馬丁體〔顯微鏡下所見的煉鋼的針狀組織〕。 adj. -sitic “acicular martensite“ 中文翻譯：   針狀麻田; 針狀馬氏體“alloy martensite“ 中文翻譯：   合金馬氏體“alpha martensite“ 中文翻譯：   α馬氏體; 阿伐麻田散體“breakdown of martensite“ 中文翻譯：   馬氏體分解“carbon martensite“ 中文翻譯：   含碳馬氏體“cell martensite“ 中文翻譯：   網路馬氏體“cryptocrystalline martensite“ 中文翻譯：   隱晶馬氏體“cubic martensite“ 中文翻譯：   立方晶馬氏體; 立方馬氏體“epsilon martensite“ 中文翻譯：   ε馬氏體“ferrite martensite“ 中文翻譯：   肥粒形麻田散體; 鐵素體馬氏體“ferrito-martensite“ 中文翻譯：   鐵素體馬氏體“half martensite“ 中文翻譯：   半麻田散體“isothermal martensite“ 中文翻譯：   等溫馬氏體“lamellar martensite“ 中文翻譯：   層狀馬氏體; 片狀馬氏體“lath martensite“ 中文翻譯：   板條馬氏體; 塊狀馬氏體“lenticular martensite“ 中文翻譯：   透鏡馬氏體; 透鏡狀馬氏體“martensite aging“ 中文翻譯：   馬氏體時效“martensite formation“ 中文翻譯：   馬氏體的形成; 馬氏體形成“martensite lath“ 中文翻譯：   馬氏體板條“martensite lattice“ 中文翻譯：   馬氏體晶格“martensite plate“ 中文翻譯：   馬氏體片“martensite point“ 中文翻譯：   馬氏體轉變點“martensite quenching“ 中文翻譯：   麻田散淬火法“untwinned martensite“ 中文翻譯：   非孿晶馬氏體“martensite ag(e)ing“ 中文翻譯：   馬氏體時效“martensin“ 中文翻譯：   馬滕辛

martha

The result showed that plastic deformation during pre - strain played an restrained role on the growth of martensite ( especially in the direction of lath width ) and increase the nucleation rate indirectly ; the elastic energy induced by plastic deformation restrain the transformation of primary martensite but accelerate the transformation of after martensite 實驗結果表明：預應變過程中造成的塑性變形對馬氏體生長(尤其是寬度方向)有約束作用，起間接提高馬氏體形核率的作用，所儲備的彈性應變能對初生馬氏體的轉變有抑制作用，但對繼生馬氏體的轉變卻有促進作用。

Are made of tempered martensite , with moderate hardness , excellent elasticity , wear - resistant , give less dust , longer recycle life , low cost , extensively used for shot peening to give residual stress in the surface layer of components for fatigue life enhancement and suppression of stress corrosion cracking and descaling and cleaning up surfaces of castings , steel parts and mechanical work - pieces prior coating 鋼丸鋼砂主要金相組織為?火馬氏體組成，具有適當的硬度良好的反彈性耐磨性粉塵少循環使用壽命長成本低等特點,廣泛應用于鑄件鋼件機加工件的表面噴涂前的表面去皮，清理。

The crystal structure of the martensite as quenching state , the variation of the structure of the martensite during non - isothermal aging in the martensite and parent state , under successive deformation condition and under thermal cycling condition in the cu - based shape memory alloys are studied by the x - ray diffraction 摘要運用x -射線衍射分析技術研究了不同成分銅基形狀記憶合金淬火態馬氏體結構、馬氏體狀態非等溫時效過程中結構的變化規律、母相狀態時效和連續變形過程中馬氏體及母相結構的變化規律以及熱循環過程中馬氏體結構的變化情況。

3 ) a novel martensitic transformation kinetics model for sma is proposed based on the phenomenological description of the martensitic transformation heat flow - temperature curve and on the linear relationship between the partial derivatives with respect to the temperature of martensite fraction and of gbbis free energy . numerical simulations by utilizing the proposed model are closer to experimental results than those from other models 3 )基于對馬氏體相變熱流-溫度實驗曲線的唯象模擬，以及馬氏體體積分數與熱力勢對溫度偏導數之間的線性關系，建立了一種新的馬氏體相變動力學模型，并與其他模型及實驗結果進行了比較。

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，第二相的沉淀析出共同決定了微合金鋼的強韌化情況，特別是由于微合金元素的存在，其細化晶粒及其碳氮化物的沉淀析出，導致鋼的良好的強韌性，并且如果工藝滿足第二相的沉淀析出強化大于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。

Experimental results show that niti memory wire for pure martensite or pure austenite and superelastic wire has strain - sensing nature , and memory - wire and superelastic wire possess stress - actuating property during restrained recovery , and that niti superelastic wire can be used as strain - sensing element to monitor structural health condition 實驗結果表明，純馬氏體態、純奧氏體態niti記憶絲及超彈絲具有應變傳感性能，約束回復中的sma與自然回復過程中的超彈絲具有力驅動性能，一定狀態的sma可實現自傳感驅動； niti超彈性絲可用作結構健康監測的應變傳感元件。

We studied the effect of laser quenching ( harden by phase transformation ) on some representative mould steels . through measuring the rigidity on the surface of samples treated by laser heat treatment , and through photographing microstructures of the steel surface , we find many reasons attribute to high hardness . these reasons include ultra - fine grains , high density dislocation and more content of carbon in martensite 我們研究的是激光淬火對幾種典型模具鋼的作用，通過對熱處理后的試樣的硬度分布的測定，用金相和電鏡觀察金相組織的變化，認為激光熱處理產生高硬度的原因是晶粒細化、高的位錯密度和高的馬氏體含量。

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 ，回火馬氏體板條特征明顯，可以獲得優良的焊接接頭性能；回火溫度超過780 ，焊縫板條馬氏體特征消失，母材回火索氏體中碳化物產生偏聚，硬度、塑性明顯降低。

4 ) as is noticed that the thermodynamics nonlinear equation of smas is very complicated and difficult to obtain the solution due to variables nested each other , a simple method starting from martensite fraction has been proposed to solve the equation 4 )研究了sma熱力學非線性方程的求解方法。由于該方程中變量之間相互嵌套，給方程求解帶來許多困難。本文根據sma熱力學非線性方程的特點，提出了一種以馬氏體百分數為切入點的求解方法，并進行了實例驗算。

The lath martensite nanometer structure can play the role of fine - particle strengthening and dislocation strengthening as well as coordinate the distribution of dislocation . it is hopeful that the strength and toughness of material with this structure can be increased at the same time 板條馬氏體組織納米化結構，可起到納米晶粒的細晶強化與位錯強化的聯合作用，并可協調位錯分布，有望使具有這種組織的材料強度和韌性同時得以提高。

Abstract : a wear - resistant electrode used in high stress state is studied . by adjusting electrode ' s component , we find a alloy system which is suitable to shredders with hammer . microstructure and x - ray analyses indicate that the hardfacing microstructure consist of martensite , retained austenite and carbonide 文摘:研制了一種適用于高沖擊條件下抗磨堆焊焊條，通過反復調整焊條藥皮組成，找到了可應用于錘式破碎機錘頭堆焊的合金系。

The reason is that the elastic energy increases the nucleation work while the formation of primary martensite can excite the release of elastic energy in austenite to promote the formation of after martensite and intensify the tendency towards homogeneous nucleation 其原因是彈性能的存在增大了初生馬氏體的形成功，而初生馬氏體的形成則會激發奧氏體內彈性能的釋放，彈性能的釋放可促進繼生馬氏體形成，并增大其均勻形核傾向。

The results show that , when the hardfacing process is not appropriate , the thick martensite structure with high carbon content will form in the overheat region of heat affected zone , and the high residual stress occurred , which are the primary causes resulting in crack 結果表明，堆焊工藝制定不當，熱影響區的過熱區形成高碳粗大馬氏體組織及保留了較大的焊接應力，是導致堆焊層開裂的主要原因。

We are specialized in sand castings in the materials of carbon steel , alloy steel , austenite stainless steel , martensite stainless steel , duplex stainless steel and so on , products are widely usrd in general machine , electric power , mining machine and so on 碳鋼、合金鋼、奧氏體不銹鋼、馬氏體不銹鋼、雙相不銹鋼等鑄件，產品應用于通用、電力、礦山機械等行業。

Abstract : recent experimental investigations have demonstrated that the pre - deformation of shape memory alloys results in martensite stabilization opposing reverse transformation , hence leading to the expansion of transformation hysteresis 文摘:形狀記憶合金經適當溫度下的塑性變形可以有效地提高馬氏體的穩定性，從而使相變滯后得以大幅度提高。

Based on the design of passive sma damper , a concept design on smart sma dampers ( both active and semi - active ) is further put forward by utilizing the shape memory effect of martensite sma wires 基于形狀記憶合金材料的形狀記憶效應，本文還對設計的阻尼器加以改進，分別從半主動控制和主動控制兩個角度提出了一種智能型sma阻尼器的概念設計。

Martensite and austenitic form the matrix of the composite . ( cr , fe ) 7c3 is also a kind of reinforcement . ( 3 ) the combine of the composite layer and master - alloy is metallurgic combination and has a very high combining - intensity ( 2 )表面復合層內增強相tic或vc為原位生成，其顆粒細小，分布均勻，無明顯梯度分布或偏聚現象。

The lath width of martensite can be fined noticeably by pre - strained quenching at non - dynamic recrystallization to approach nanometer magnitude ( the average width is 120nm ) 采用非動態再結晶溫度下的預應變-淬火，提高馬氏體相變形核率，可以超細化馬氏體的板條晶片寬度，使之接近納米量級水平(平均寬度達到120nm ) 。

Martensite formation is covered . the relationships between microstructure and strength , toughness , and ductility is presented in terms of the concepts developed throughout the course 涵蓋麻田散體相的形成。顯微組織與強度、韌性及延性間的關系將以整個課程所學到的觀念加以闡述。