淬火組織 的英文怎麼說
中文拼音 [cuìhuǒzǔzhī]
淬火組織
英文
hardened structure-
Effect of alloying elements on structure and mechanical properties of bainite ductile iron in the step austempering in machine oil at room temperature
合金元素對室溫油分級等溫淬火貝氏體球鐵組織和性能的影響Abstract : by means of metallographical examination and sem, the microstructure characteristics, macro - and microfractographs of the brittle broken wheel hull bolt of bj212 automobile have been studied. the results show that the thin - headed screw, with excessively deep carbonitriding layer and hardening layer, has less resistance to brittle fracture in the thin area of its head. at the root of the head connecting the stem, a tensile stress may emerge owing to the non - even quenching stress. those are the two reasons for low torque fracture of bolt
文摘:藉助金相、掃描電鏡等手段對低扭矩脆斷的bj212汽車輪殼螺栓的金相組織特徵,宏觀和微觀斷口形貌等進行了研究,結果表明:這種頭部薄的螺栓,滲層和淬透層過深,使頭部薄區脆斷抗力降低,在頭部與桿的根部,由於淬火應力不均勻導致根部產生拉應力,均是導致螺栓低扭矩斷裂的原因。Abstract : the effect of different carburizing programs on the microstructure and thick of carburized layer of screw bevel gears has been studied, meanwhile the fatigue life of these gears has also tested
文摘:本文研究了不同滲碳淬火工藝對螺傘齒輪組織及滲層深度等影響,並對螺傘齒輪進行了臺架疲勞測試。It is shown from results that increasing carburizing time further in the normal technology can not obviously deep the carburizing layer, but can cause nonmartensite microstructure at the bottom of the gear and coarse grain across the gear, these will heavily decrease the fatigue life of the gear
結果表明:在正常滲碳淬火工藝基礎上再延長滲碳淬火1小時,齒輪滲碳層深度變化不大,但其齒根局部表面處有非馬組織,且晶粒尺寸易產生異常長大現象,從而致使臺架疲勞壽命明顯下降。Abstract : the structure and the properties of the grinding ball made of the composite cast iron have been researched in this paper. the result indicates that added trace boron and a proper quantity copper to this kind of composite cast iron can increase its quench - hardening ability, and raise its hardness and impact toughness
文摘:研究了一種復合鑄鐵磨球的組織和性能,結果表明,化學成分和淬火工藝對這種復合鑄鐵磨球的組織和性能有很大影響,微量的硼和適量的銅可以明顯地提高磨球的淬透性,經過余熱淬火得到貝氏體或馬氏體基體組織,從而提高磨球的硬度和沖擊韌性。And just such peculiar microstructure is the very contributing factor that causes adi to have excellent properties
正是由於等溫淬火球鐵這種特有的微觀組織使其具有廠優越的力學性能。The microstructure of isothermally - quenched ductile iron ( adi ) is a mixture structure consisting of austenite plus acicular ferrite
摘要等溫淬火球鐵的顯微組織由奧氏體加針狀鐵素體的混合組織組成。The phase transition process of isothermally quenched ductile iron was investigated, the author ' s opinion on the nomination of the structure of isothermally quenched ductile iron was described
研究了等溫淬火球鐵的相變過程,指出了對等溫淬火球鐵組織命名的看法。The principle of multi - method and multi - parameter is suggested, which should be followed during characterizing microstructures of alloy steels by ultrasonic not method. ultrasonic velocity ( c, ) of transformation products through different heat processes of three steels was measured by high - accuracy ultrasonic installation. the velocity of quenched microstructure of 38crmoal is the lowest, which gradually increases with increasing tempering temperature between 200 ? and 650 ? after quenching process
利用ti - 40n高精度超聲波測厚儀,研究了超聲波在不同鋼種、不同熱處理轉變產物中的超聲波速度c _ 1 : 38crmoal鋼淬火組織c _ 1最小,淬火后在200 650范圍內進行回火處理時,隨回火溫度的升高, c _ 1逐漸升高, hrc與c _ 1之間具有較好的相關性;正火組織的c _ 1介於淬火后中溫回火及高溫回火產物組織的c _ 1之間。The influence of the quenching and tempering treatment and the different subcritical treatment on microstrcture and property of a high alloy white cast iron was studied
摘要研究了淬回火和不同的亞臨界熱處理工藝對高合金白口鑄鐵組織和性能的影響。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。The network carbide and acicular martensites that existed in the microstructure of the root grooves of the spline due to improper carburating and quenching process of the shafts, led to the initiation and propagation of the intergranular microcracks and were the main reason that caused the early fracture of the shafts
由於滲碳淬火工藝不當,在二軸花鍵槽根部的組織中產生了網狀破化物和粗大的針狀馬氏體,在外力作用下形成沿晶顯微裂紋並擴展,是導致二軸疲勞斷裂的主要原因。In chapter four, in our experiments, we selected four representative mould steels as samples. after laser heat treatment, the hardness of samples was measured by special instrument, microstructure was also photographed to be analyzed carefully. through these experiments, we also debated on the theories which explain the new phenomenon occurring in laser overlapping treatment
第二章:介紹了工業中的各種激光加工技術和激光加工系統,詳細說明了本實驗所使用的高功率激光加工系統;第三章:詳細敘述了激光淬火的機理和熱傳導數學模型;第四章:通過實驗,分析激光淬火后的模具鋼的硬化帶的硬度分佈及金相組織特性,同時對激光交疊熱處理的特點及形成機理都作了深入的探討。Analysis on microstructure and stress of broad - beam laser hardened gears
齒輪寬帶激光淬火組織和應力分析I. investigation on laser surface hardening for metal materials in this work, the effect of the process parameters in laser surface hardening on the properties and surface feature of the hardened layer was studied
一、金屬材料激光表面硬化技術研究。研究了激光表面淬火工藝參數和硬化層性能、強化效果之間的關系,對大面積激光淬火技術的基礎理論及搭接方法對組織性能的影響規律進行了探討。We studied the effect of laser quenching ( harden by phase transformation ) on some representative mould steels. through measuring the rigidity on the surface of samples treated by laser heat treatment, and through photographing microstructures of the steel surface, we find many reasons attribute to high hardness. these reasons include ultra - fine grains, high density dislocation and more content of carbon in martensite
我們研究的是激光淬火對幾種典型模具鋼的作用,通過對熱處理后的試樣的硬度分佈的測定,用金相和電鏡觀察金相組織的變化,認為激光熱處理產生高硬度的原因是晶粒細化、高的位錯密度和高的馬氏體含量。For example, the quenching and quenching plus low tempered structure of 38crmoal are hard to be differentiated by velocity method and the principal frequency technique. it will be better if they are differentiated by the method of relative attenuation coefficient
38crmoal鋼的淬火與淬火+低溫回火組織,用聲速法和主頻率比較法都難以區分,最好的方法是比較功率譜譜峰特徵(幅度、數量、分佈) 。The structure size of mn wire after continuously imduction quenching is about 5 m grain size : 12. according to national standard zbj6001 - 88 microscopic inspection of
Mn鋼絲連續感應加熱淬火組織尺寸約為5m晶粒度12級。The structure and mechanical properties of x80crvmo13 - 2 stool - steel after quenching in differet temperature
2刃具鋼的淬火組織性能的影響分享友人