heat fracture 中文意思是什麼
heat fracture
解釋
熱作用骨折-
Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation
為解釋微合金化50crv鋼強韌化機理，本文通過對不同淬火溫度，回火溫度，回火時間下的力學性能指標的對比及顯微分析，認為微合金元素的細化晶粒，馬氏體的回火分解，殘余奧氏體的轉變，第二相的沉澱析出共同決定了微合金鋼的強韌化情況，特別是由於微合金元素的存在，其細化晶粒及其碳氮化物的沉澱析出，導致鋼的良好的強韌性，並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應，會在硬度曲線中產生明顯的二次硬化現象。 -
The fracture toughness values of vermicular graphite cast iron specimen subjected to four different heat treatment methods were tested and compared
摘要比較四種熱處理方法下蠕墨鑄鐵試樣的斷裂韌度。 -
Fracture analysis of the pipes for exchanging boiler ' s surplus heat
余熱鍋爐熱交換管破裂原因分析 -
Methods of longitudinal fracture test for heat - resisting superalloy bars
高溫合金棒材縱向斷口試驗法 -
The reason for crankshaft fracture in an mwmtbd234v6 diesel was analyzed. the results show that overheating and overburning is the direct reason for fracture. the heat treatment of the crankshaft is not perfect or consistent with the standard. the lubrication is not good in service. all these accelerate the fracture
分析mwmtbd234v6型柴油機的曲軸斷裂原因，結果表明鍛件過熱過燒是導致斷裂的直接原因；曲軸熱處理工藝不規范、不完善，曲軸工作潤滑條件不良加速了曲軸斷裂 -
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。 -
3, carry out detailed numerical simulation and analysis for heat extraction of deep - seated hdr based on the tengcong prefecture, reach the major variety rule of rock mass stress, temperature, fracture width depending on the heat extraction. ( 1 ) in the hot dry rock geotherraal energy extraction system, transportation of energy and flow of water arise mainly through the fracture, the lower temperature water attain the high temperature from the injection well to production well through conduction convection and take away the thermal from wall rock
3 、認真地對騰沖高溫巖體地熱開發進行了數值模擬計算和分析，得出了地熱開發過程中巖體應力、溫度以及裂縫寬度隨地熱提取的變化規律等重要結論： （ 1 ）在高溫巖體地熱開發系統中，能量的運移、輸送與水的流動主要通過裂縫面發生，注入的低溫水在流到生產井的過程中，發生傳導、對流、吸收圍巖熱量，達到升溫的目的。 -
( 7 ) in the hot dry rock geothermal energy extraction system, the fracture width widen gradually with the heat extraction, after the system start to operate, in a month the width change rapidly, the growth rate exceed 100 %, and then the change become even, until 3 year, the variety is very small, almost towards to stability
（ 7 ）在高溫巖體地熱開發中，其裂縫寬度是隨地熱提取而逐漸加寬的，在開始運行的一年內，寬度增長迅速，其增長率達到100 %以上，然後變得平緩，到3年後，變化很小，幾乎趨于穩定。 -
Cross section morphology analysis showed that the fracture appearance of tungsten carbide particle reinforced steel matrix composites was a mixture of quasi - cleavage fracture and toughness fracture. the fracture appearance of tungsten carbide particle always displayed as quasi - cleavage fracture, while the cross section morphology of steel matrix transformed with the heat treatment techniques
斷口形貌分析顯示， wc鋼復合材料的斷口形貌呈韌-脆復合斷口特徵，硬脆的wc顆粒常發生脆性解理斷裂，而韌性較高的鋼基體的斷口形貌則因熱處理工藝而異。 -
In harsh climate region, mere exists obvious local stress concentration near the upstream and downstream of the exposed - in - winter horizontal surface of the rcc dam, and the surface of spillway bucket though heat insulation is applied on the surfaces, tensile stress still exceeds the allowable one of concrete. this paper puts forward to adopt preset crack to avoid occurring more cracks. the special crack model is applied to simulate the dam preset crack, and the joint model of fracture mechanics is induced into strain - soften model
在結構措施方面，針對嚴寒地區高碾壓混凝土重力壩壩體越冬層面的上、下游面附近及溢流壩堰面反弧段表面有明顯的局部應力集中象現，在已採取一定的表面保溫防護的條件下，拉應力仍然超過混凝土容許拉應力，開裂難以避免，進而提出設置碾壓混凝土壩表面預留縫結構措施並對該措施進行深入研究，包括預留縫的擴展穩定和壩體沿預留縫的穩定性，以避免大壩在無措施部位開裂，解決大壩越冬層面水平施工縫的開裂問題。
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