細珠光體 的英文怎麼說
中文拼音 [xìzhūguāngtǐ]
細珠光體
英文
fine pearlite-
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。Optical tweezers use the tiny force of a beam of light from a laser to push around and control tiny objects, from cells to plastic beads
光鑷用這一來自激光光束的微力來推動和控制微小物體（從細胞到塑膠珠） 。Most existing constitutive models do not take into account the interactions between different phases of pearlitic steel and cannot illustrate why such kind of materials has excerllent mechanical properties. it is, therefore, necessary to develop a new method, which can describe the macroscopic behavior, damage and failure of the materials and their micro structural dependence. in this paper, based on a non - classical theory of plasticity and the continuum damage mechanics, a damage evolution based on an ellipsoidal void model for mixed hardening materials is obtained
已有的關于珠光體鋼的本構模型多難以考慮珠光體材料的微結構及其相互作用，難以解釋珠光體材料何以具有較好的綜合力學性能，因此有必要發展一種多層次的細觀力學分析方法以研究此材料在復雜加載條件下計及微結構特徵的宏觀響應特性，使材料的強度、疲勞壽命的預測與其微結構及各組成相的損傷及微觀應力應變演化規律聯系起來，進而為材料微結構的設計提供依據。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 。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。Damage constitutive relationship for pearlitic steel with fine laminar microstructure
細片層狀微結構珠光體材料損傷本構關系The results show that small cr addition in steel can decrease the lamellar spacing of pearlite, and markedly increase strength and hardness with almost the same ductility and toughness, and accordingly improve wear and shelling - resistance of wheel steel
實驗結果顯示，加入微量的鉻，可以細化珠光體的片層間距，在保持韌塑性基本不變的情況下，顯著增加材料的強度和硬度，從而提高車輪鋼的耐磨性和抗剝離性能。Damage constitutive relationship involving void shape variation for pearlitic steel with fine laminar microstructure
考慮微缺陷形狀的細片層狀珠光體鋼的損傷本構模型Investigations showed that one of the most important characteristics of pearlitic materials is the decrease of ratcheting rate, the plastic shakedown capability, and the memory and recovery of the accumulated plastic strain under asymmetrical stress cycles. it was found that the interaction between phases plays an important role in the mechanical behavior of pearlitic materials, such as wearability and contact fatigue life
珠光體材料的重要特性之一是在非對稱應力循環下循環蠕變速率的減緩並趨于塑性安定以及材料對循環蠕變史的記憶與恢復；同時珠光體材料的宏觀力學性能與其細觀結構密切相關，在很大程度上取決于珠光體材料的微結構及其相互作用。分享友人