stage hardening 中文意思是什麼
stage hardening
解釋
分段淬火-
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。 -
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。 -
The last stage is a rapid softening course for all strain amplitude. further metallic phase shows : for all strain - controlled, the initial rapid cyclic hardening results from the strong interaction between precipitate strengthening phase and the dislocation ; as for strain amplitude lower than 0. 95 %, the shearing of precipitate strengthening phase leads to the cyclic softening behavior
金相組織結構檢查進一步表明，循環塑性應變作用將顯著改變原始態合金中沉澱顆粒的幾何形狀、尺寸和分佈狀態，並由此改變位錯與顆粒之間的交互作用行為，這一機制將對合金的循環硬化和軟化起促進作用。 -
For the cyclic deformation under a given strain at room temperature, cyclic softening is usually displayed till to failure in the lower range of strain ; however, cyclic hardening is displayed in the early stage in the higher range of strain, subsequent cyclic softening in the later stage and till to failure
對于室溫下恆應變幅的循環變形，在應變幅較低時表現為循環軟化直至疲勞破壞;在應變幅較高時，循環變形的初期為循環硬化，隨后是循環軟化直至疲勞破壞。 -
So far, due to the limit of research method and material, all these research are at the beginning stage, particularly that on zona hardening and laser thinning assisted hatching, there is no report in our country
由於研究方法及材料來源有限，迄今為止，這些研究都還處于初始階段，尤其是透明帶硬度及激光薄化透明帶輔助孵出的研究，國內尚未見報道。
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