塑性斷口 的英文怎麼說
中文拼音 [sùxìngduànkǒu]
塑性斷口
英文
plastic fracture-
The fracture of ct20 alloy was of plastic dimples character at rt, while some holes and cleavage appeared at 20k, showing some brittle feature
Ct20合金室溫拉伸斷口以塑性韌窩為主要特徵， 20k拉伸時斷口上出現了一些孔洞和解理臺階，表現出一定的低溫脆斷特徵。In this dissertation, the effect of texture, heat - treatment, and hydrogen on the lcf behavior of zircaloy - 4 and the cyclic deformation behavior for zircaloy - 4, n18 alloy and n36 alloy have been investigated systematically using fully - reversed tension - compression loading under strain control ( r = min / max = - 1 ), while the evolvement of the friction and back stresses versus the number of repeated working cycles and the plastic strain amplitude has been studied, and the thorough discussion combined with the analysis result of fatigue sub - structure, friction and back stresses, and fatigue fracture has been given to the mechanism underlying the lcf behavior of alloys
本文採用對稱拉壓循環變形方法（ r _ = _ （ min ） _ （ max ） = - 1 ） ，系統研究了織構、熱處理狀態、氫對zr - 4合金低周疲勞性能的影響， zr - 4合金、 n18合金和n36合金的循環變形行為，並研究了摩擦應力、背應力隨循環周次、塑性應變幅的變化規律。結合疲勞亞結構和疲勞斷口的分析結果，深入探討了影響合金低周疲勞行為的作用機制。The critical crack and stress put forward provides theoretic foundation for monitoring portal machine. 3. applying steady theory of board, studying the problem of early curvature, flexibility model, welding remaining stress, elastic transmutation and brace condition and so on, conclude that structure of beam is primary place where metal structure of portal crane lose stabilization and the break of main beam is result of losing partial stabilization of main board
文章提出的界限應力和臨界裂紋對于港口機械的監測提供了理論依據； 3 、運用板的穩定理論，探索了作為薄壁構件的門機金屬結構在失穩破壞中所涉及到的初曲率問題、彈性模量問題、焊接殘余應力問題、彈塑性變形問題以及支承條件問題等，得出了門機金屬結構發生失穩破壞的主要部位為臂架結構，且主臂架的折斷是由於受壓翼板局部失穩引起整體破壞； 4 、探討了焊接對結構承載的影響。The results show that the fracture of a broken tube is a kind of expansion form and a typical ductile fracture, and has instantaneous overheat blowout characteristic under the high temperature
結果表明，爆管斷口為脹開式爆口，為典型的塑性斷口，具有高溫瞬時過熱爆管特徵。The results have indicated that this titanium has a strong ability in superplastic, the fractographics presented big and deep dimple, so the alloy is of high toughness
另外，對tc6鈦合金的拉伸斷口形貌進行掃描電鏡分析。其結果表明，斷口形貌呈現大的韌窩，合金顯示較高的超塑性潛力。The specified works finished are listed : 1. with experimental load - displacement curves and acoustic emission technology, it was found that the material shows pseudo - plastic behavior under tensile loads and quasi - elastic behavior under the flexural loads
通過斷裂試驗的載荷位移曲線和聲發射檢測，發現了該材料的切口試樣在拉伸載荷作用下表現為偽塑性的特徵；在彎曲載荷作用下表現出準脆性的特徵。分享友人