hardening strain 中文意思是什麼
hardening strain
解釋
淬火變形-
The lcf behavior of a recrystallized zircaloy - 4 plate at room temperature and 400 show that alloy has better lcf property at rt than at 400, and cyclic hardening at 400 which could be attributed to the dynamic strain aging effects. it is noticeable that the hydrided plate has the same cyclic behavior as the above unhydrided sample at room temperature
在400下，合金錶現出與常溫下不同的循環特性，其循環穩定滯后回線出現鋸齒狀波形，且在整個疲勞過摘要程中呈現出一致循環硬化的現象，這主要是因為合金在400下發生動態應變時效效應的結果。 -
While cyclic deformation experiment under constant strain control is performed in 400, the material shows the continuous hardening until cyclic invalidation. ( 3 ) back stress attained by kwl " s method is used to analyse the bauschinger effect during an incremental step cyclic test and cyclic deformation test under constant strain control, it is shown that back stress increases with increasing plastic strain and the numbers of cycle, and the back stress is uniform, regardless of tension or compression conditions. ( 4 ) as far as recrystallized zircaloy - 4 plate is concerned, the back stress in transverse direction is higher than that in rolling direction due to the higher schmid factor in rolling direction
對于再結晶狀態的zr一4合金板材試樣來說， t方向（橫向）試樣的背應力要高於r方向（軋制方向）的背應力，原因在於r方向的schmid因子高於t方向的schmid因子; 400下， zr一4合金的背應力要明顯低於室溫下的背應力;含氫200pg / g的zr一4合金的背應力大小與無滲氫的zr一4合金背應力相比，無明顯區別;固溶處理后， zr一4合金的背應力大小發生了變化，在較高塑性應變下，背應力均高於固溶處理前的背應力。 -
According to the complication of cyclic loading the aeolotropism and bauschinger effect resulted form plastic deformation were reflected by the kinematic hardening model, the transient stress - strain relation was described by jhansale model in the iterative formulas
在迭代格式中，針對復雜的交變載荷，採用運動強化模型，反映了塑性變形引起的各向異性和包辛格效應，運用jhansale模型描述材料的瞬態應力應變關系。 -
The first stage is primary slip then followed by secondary slip ; the last stage is due to dislocation passing the slips. the cyclic stress strain ( css ) curve exhibits a stronger hardening occurred in cyclic plastic deformation than that in tensile test
建立了拉伸和應變疲勞的有限元模型，使用基於晶體滑移模型的數值方法，對晶體內部滑移系的啟動以及滑移繫上的分解切應變、切應力這些無法試驗觀測的變量進行計算，分析它們對晶體塑性變形的不同影響。 -
It can be noticed that both r and t specimens show initial hardening and subsequent softening at the strain amplitude higher than 0. 8 % and cyclic softening from the beginning to fracture under strain amplitude less than 0. 8 % at room temperature, and the cyclic flow stress was always lower in r specimen than in t specimen at the same strain range
且在相同的應變幅下， t向試樣比r向試樣具有更高的循環流變應力。此外，對r向及t向試樣，低應變幅下呈現出循環軟化現象是因為晶粒旋轉導致循環軟化；而在高應變幅下發生循環硬化是由於孿晶作用的結果。 -
The experimental results is shown as followings : ( 1 ) the cyclic flow stress - strain curves in an incremental step test could be expressed as the power law relation : ( 2 ) when the strain amplitude is lower during cyclic deformation tests under constant strain control, softening firstly appears, then gradually hardens with the increasing numbers of cycle ; when the strain amplitude is higher, hardening firstly appears, then gradually softens
試驗結果表明： （ 1 ）循環流變應力與應變的相互關系曲線均符合冪律關系式： （ 2 ）在室溫下進行恆應變幅循環變形過程中，當所控制的應變幅較小時，該材料首先出現循環軟化，之後隨循環周次的增加直至循環失效前該材料出現了硬化現象。當應變幅較大時，該材料開始出現硬化，然後隨循環周次的增加才出現軟化。 -
N metallic materials - sheet and strip - determination of tensile strain hardening exponent n - values
金屬薄板和薄帶拉伸應變硬化指數 -
Method of determining the tensile strain hardening exponent for metallic sheet and strip
測定金屬薄板材和帶材用拉伸應變硬化試樣的試驗方法 -
Tensile strain hardening behaviours of nitrogen strengthening high manganese austenitic cryogenic steel
氮強化高錳奧氏體低溫鋼的拉伸應變硬化行為 -
Iron and steel - method of determination of the tensile strain hardening exponent n of steel sheet and plate
鋼鐵.薄鋼板和鋼板拉伸應變硬化指數n的測定方法 -
The tensile and compression experiment on bulk nanocrystalline ag prepared by igc method was carried on mt810 with different grain sizes and zwick 10tn2s machine at different strain rates under normal temperature respectively. the stain rate sensitivity m was found to be 0. 025, which was extremely lower than the ordinary values. also the work hardening exponent is very low
本文從用惰性氣體蒸發冷凝和真空原位壓結法（ igc ）制備得到的直徑80mm ，厚度7 . 6mm的大尺寸納米晶金屬ag樣品上切割得到符合力學實驗要求的拉伸和壓縮試樣，在mts810和zwick精密力學測試機上分別精確測定了拉伸和壓縮應力?應變曲線與晶粒尺寸和應變速率的關系。 -
The results showed that the characteristics of cyclic hardening or softening depend to the strain loading paths and the loading parameters
研究結果表明，低周拉扭疲勞加載下，拉與扭應加響應的硬化與軟化特性取決于應變加載路徑和加載參數。 -
The tensile deformation behavior of the ufg resultant steel is characterized by the absence of strain hardening
Ecap變形試樣的拉伸曲線沒有顯示明顯的加工硬化。 -
The alloys, which were cold - worked followed by recrystallization annealing, display cyclic softening in the range of low strain because the cyclic stress - strain curve lies below the monotonic stress - strain curve, and show cyclic hardening in the range of high strain because the cyclic stress - strain curve lies above the monotonic stress - strain curve
在低應變范圍，冷加工后經再結晶退火處理的錯合金的循環應力一應變曲線位於單調拉伸曲線的下方，表現為循環軟化;在高應變范圍則位於單調拉伸曲線的上方，表現為循環硬化。 -
Strain hardening coefficient
應變硬化系數 -
Fatigue strength coefficient decreases linearly during the cyclic course ; fatigue strength exponent increases ; fatigue ductility coefficient first goes up till the maximum value at 50 % total life, and then goes down ; fatigue ductility exponent decreases during the first half cycle till its minimum value at 50 % total life and then increases in the rest cycle course ; cycle strength coefficient and cycle strain hardening exponent both decrease during the total cycle course
結果表明： 6個基本疲勞特性參數在循環過程中都呈顯出規律性變化。疲勞強度系數呈線性減小趨勢；疲勞強度指數呈線性增大特徵；疲勞延性系數是一個先增后降的過程；而疲勞延性指數隨循環進行由初始減小到逐漸增大；循環強度系數和循環應變硬化指數在整個循環過程中都趨于減小。 -
Supposed the two nonreversible deformations both obey the drucker law, the plastic loading function was established based on experimental data and the plastic work was used as hardening parameter supposed loess damage is mostly due to shear and the damage potential function has the same form of the equivalent plastic strain line in the plastic part, the damage potential function was gained by fitting the test data
假定兩類不可逆變形都服從drucker公設，根據試驗數據確定以塑性功為硬化參數的塑性加載函數。認為損傷主要由於剪切產生，假定損傷勢函數與塑性部分的塑性剪應變等值線具有相同的形式，通過試驗數據擬合得到損傷勢函數，然後根據損傷理論推導建立q1黃土的彈塑性損傷本構模型。 -
Through research into the low - cycle fatigue behavior of gh4145 / sq, we found out that the control of strain at any level is not a stable course but has three obvious stages. the first stage is a rapid cyclic hardening course for any strain control
對gh4145 / sq合金在總應變幅控制下的對稱拉壓低周疲勞研究表明：在循環形變過程中合金主要表現為初始疲勞硬化、隨后疲勞軟化及最終失穩斷裂三個階段，疲勞硬化軟化行為與作用應變幅相關。 -
Strain hardening effect
應變硬化效應 -
Studying on the shakedown theories and plastic deformation of contact surface layer the shakedown of contact surface layer is related to the strain - hardening models of materials, such as isotropic hardening, kinematic - hardening, and mixed - hardening. the existing results based on experiments and theory show that the shearing strain behavior of contact surface layer caused by friction can be comparatively described with kinematic - hardening
研究中，圍繞強化後接觸表面疲勞問題，從強化模型選擇、接觸表層安定性存在的條件及其失效規律，進行了詳細的概念定義、定理證明及推論演算等理論工作，為接觸表面層安定性的數值模擬和疲勞分析奠定了理論基礎。
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