low tempering 中文意思是什麼
low tempering
解釋
低溫回火-
Low high temperature tempering
回火有低溫回火及高溫回火 -
Toolox44 belongs to the low residual stress tool steel with hardening and high tempering
Toolox44是經過硬化高溫回火的低殘余應力工具鋼。 -
The variation principle of wave velocity in different microstructures of 40cr is similar with that of 38crmoal. the velocity in quenching and low temperature tempering structure of gcrlssimn is much lower than the velocity in normalizing, annealing and high temperature tempering structure
Gcr15simn鋼淬火+低溫回火組織的c _ 1遠大於正火、退火及淬火+高溫回火組織的c _ 1 ；正火、退火及淬火+高溫回火組織的c _ 1比較接近。 -
According to structural characteristics of multi - phased alloy steels and the properties of ultrasonic propagation, microstructures characterization with different heat treatment processes ( normalizing, quenching / annealing, quenching plus low tempering, quenching plus high tempering ) for three steels ( 40cr, 38crmoal, gcrlssimn ) was studied experimentally by using ultrasonic methods. ultrasonic velocity, relative attenuation coefficient, and power spectral analyses were researched on the same samples respectively, on the basis of theory and experiment, the sensitivity and other characterizations of the three methods used to distinguish different microstructures were compared
根據具有多種相結構合金鋼不同熱處理轉變產物的組織特點，以及超聲波在其中的傳播規律，利用超聲波速度、相對衰減系數以及功率譜分析三種方法，對三種鋼（ 40cr 、 38crmoal及gcr15simn ）不同熱處理（正火、淬火退火、淬火+低溫回火及淬火+高溫回火）轉變產物的顯微組織進行了超聲表徵研究。 -
Annealing could reduce hardness and raise toughness, which could be prone to mechanical machining. quenching and low temperature tempering could raise intensity and hardness of materials, not reduce toughness obviously. quenching on same temperature caused ticp / fe in situ composites having the best integral machine properties
退火處理使材料的硬度降低，韌性提高，便於機械加工；淬火+低溫回火處理使材料的強度和硬度提高，而韌性無明顯的降低；採用等溫淬火工藝，可使tic _ p fe復合材料具有最好的綜合機械性能。 -
The results show that the main causes of fracture is composition segregation and low strength resut from no quenching and tempering treatment
結果表明，產生斷裂的主要原因是材料內部成分偏析及未按要求對材料進行調質處理導致材料的強度較低。 -
Keywords : ultra - low carbon bainitic steel, tempering, transmission electron microscopy
關鍵詞：超低碳變韌鐵合金鋼、回火、穿透式電子顯微鏡。 -
The tempering microstructures and mechanical properties in an ultra - fine low carbon bainitic steel
超低碳針狀鐵素體管線鋼的顯微特徵及強韌性行為
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