超塑性成形 的英文怎麼說
中文拼音 [chāosùxìngchéngxíng]
超塑性成形
英文
superplastic forming-
Based on the studies of petrotexture, structural deformation and the relevant metamorphism, this paper indicates that this peridotite massif is the product of ultramafic magma cumulated at the crust - mantle transtion zone and has undergone the early stage of plastic deformation under the condition of granulite facies （ 800 ） and late ductile shearing at amphibolite and greenschist facies in relevance to uplifting
本文通過巖體的結構、構造變形及相應的變質作用研究，提出了該橄欖巖體是由超基性巖漿在殼幔過渡帶結晶而成，並經歷了與圍巖一致的麻粒巖相（ 800 ）條件下的早期塑性變形以及角閃巖相和綠片巖相退化變質條件下與逆沖上升有關的韌性剪切變形。In performing ecap, a material is subjected to intense plastic straining by pressing a sample repeatedly through a die containing two channels, with equal cross - sections, intersecting at an angle. equal channel angular processing of the medium carbon steel ( 0. 45 wt. %
Ecap變形是使試樣通過橫截面相等並成一定交角的兩通道的模具中而產生強烈的塑性變形的一種變形方法。最近人們運用ecap變形方法成功地使低碳鋼及珠光體鋼組織超細化，關于這方面的研究已引起了人們的廣泛關注。The ultra - low carbon steel ( 0. 001 % c ) is subject to a strain of ~ 10 by utilizing equal channel angular pressing of ten passes with route c at room temperature. the grain size is refined to ~ 0. 3m and the resultant steel exhibited the yield strength over 678mpa with a reasonable good elongation of 47. 4 %
本研究成功實現了室溫下超低碳鋼c方式下的ecap變形，累計等效真應變達到10 ，獲得了晶粒尺寸為0 . 3 m超細晶試樣，其屈服強度達678mpa ，是普通熱軋態的兩倍多，並保持高的塑性。In this paper, 130mm diameter hot - rolled bars ( 3 transus temperature is 798 c ) were used in experiments. the superplastic property of ti - 1023 alloy was studied systematically by the experiments of tensile and compression. the preparation method of fine - crystalline structure and the processing parameters of superplastic forging are optimized
本文以130mm熱軋棒材為原材料，通過超塑性拉伸和超塑性壓縮試驗，對ti - 1023合金的超塑性進行系統研究，研究坯料細晶組織制備方法，優化超塑成形工藝參數，為高筋薄腹板復雜形狀ti - 1023合金鍛件超塑性等溫模鍛工藝的制定提供試驗依據。Abstract : based on the rigid visco - plastic fem technique, this paper numerically simulate the superplastic bulging process of void - sensitive materials using pressure controlling strategy of maintaining maximum effective strain rate constant and void damage evolution model of superplastic forming
文摘:基於剛粘塑性有限元技術採用最大應變速率恆定的壓力控制策略和超塑性成形空洞損傷演變模型對空洞敏感材料的超塑性脹形過程進行了數值模擬。Abstract : in this paper, rigid visco - plastic fem technique is applied to numerically analyze the factors affecting the forming time of superplastic bulging, and the regularities of forming time affected by different factors are given by examples of constant pressure and constant strain rate die - bulging of cylinder parts, all of which provides guideline for process planning in actual superplastic bulging
文摘:採用剛粘塑性有限元技術對超塑性脹形成形時間的影響因素進行了數值分析，以圓筒形零件的恆壓和恆應變速率充模脹形為例，給出了不同因素對超塑性成形時間的影響規律，為超塑性脹形實際工藝設計提供了依據。The test result of the rene95 sample showed that the maximum ultimate tensile strength can be as high as 1400mpa and has reached 97. 9 % of that of the sample fabricated by powder metallurgy ( pm ). the plastic elongation of the test sample can even exceed that of pm. the ultimate tensile strength of the test sample grown from single crystal substrate has surpassed 6 % of that of grown from the stainless steel substrate, at the same time the plastic elongation surpassed 40 %
對成形試樣的力學性能測試結果表明，強度方面_ b最大為1400mpa ，已經達到了粉末冶金的97 . 9 ，塑性方面甚至超過了粉末冶金的水平；以單晶為基材的成形試樣其最大拉伸強度要比不銹鋼為基材的試樣高6 ，延伸率要高40 。Elastic - plastic analysis for soil around anchor jacked pile in this paper, the course of penetration is regarded as expansion of cylindrical cavity in infinite soil mass. combining with the knowledge of elastic mechanics and plastic mechanics, we can make analysis for soil around pile. finally, we can educe the cylindrical cavity pressure, radius of plastic zone, radical displacement in elastic zone, excess pore water pressure in soil around pile and spherical cavity pressure at the end of pile
錨桿靜壓樁樁周土體的彈塑性分析該部分是文章的主要工作所在，本文把壓樁過程樁周土體的本構關系看作是水平面的平面應變小孔擴張問題，利用小孔擴張原理，結合彈性力學以及塑性力學的知識，對壓樁後土體的性狀作出分析，得出樁對土的擠擴作用力、樁周土體塑性半徑、彈性區的位移，壓樁完成瞬時樁周土體彈性區和塑性區的超孔隙水壓力以及樁端球形孔擴張的擴張力。The effect of plastic deformation and elastic strain energy induced by pre - strain on the nucleation of martensitic transformation of low alloy ultra - strength steel sosimncrmov had been studied by pre - strain quenching in austenite state. the control over deformation magnitude and deformation temperate as well as loading pattern was performed to adjust the storage of elastic strain energy in steel before martensitic transformation, using the type of geeble - 1500 thermal analogue test machine
使用gleeble - 1500型熱模擬機，對低合金超高強度鋼30simncrmov實施奧氏體預應變淬火處理，通過控制形變量、形變溫度和加載方式，調整鋼中馬氏體相變前的彈性應變能儲備，研究了預應變所造成的塑性變形與彈性應變能對馬氏體相變的影響。We possess a broad range of processing technologies both for producing general - purpose resin molds and also for two - color forming, super engineering plastic, thermosetting, screw products, etc. with regard to promising new products, we are currently developing a water - feeding device for flower pots and planters
不僅有一般的樹脂模具，還有2色成形，超強工學塑料，熱硬化性，螺絲等很多種加工技術。作為新開發產品的盆栽供水裝置也正在開發中。It is a subject for beijing aero material institute. in this thesis superplasticity and bulging process are researched on al - 6mg - 0. 2sc alloy
本文完成的是北京航空材料研究所的一項研究課題，研究al - 6mg - 0 . 2sc合金的超塑性能和脹形工藝。The first method is that the structure cannot bear any load because of too many plastic hinges. only using this method cannot accurately reflect the influence of semi - rigid connections on stability. before a plastic hinge is formed at the node with semi - rigid connections, the rotational displacement at this node has been too large
但僅有這一種判斷方法還不準確，也不能反映半剛性對穩定的影響，因為在半剛性結點處形成塑性鉸時其轉角位移需發生很大變化，事實上這是不可能的，因為在結點處形成塑性鉸之前，結構位移已經大大超過了規范允許值。As the material is deformed beyond the strain that elastic deformation persists, the stress is no longer proportional to strain, and permanent, nonrecoverable, or plastic deformation occurs
當材料的形變超出彈性形變發生的范圍，其應力將不再與應變成正比，永久的、不可回復的形變發生，即為塑性形變。分享友人