細馬氏體 的英文怎麼說
中文拼音 [xìmǎshìtǐ]
細馬氏體
英文
hardenite-
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 grain refining process for 18ni 2450mpa martensite aged steel
馬氏體時效鋼細化晶粒工藝The lath martensite nanometer structure can play the role of fine - particle strengthening and dislocation strengthening as well as coordinate the distribution of dislocation. it is hopeful that the strength and toughness of material with this structure can be increased at the same time
板條馬氏體組織納米化結構，可起到納米晶粒的細晶強化與位錯強化的聯合作用，並可協調位錯分佈，有望使具有這種組織的材料強度和韌性同時得以提高。The ultrasonic quenching of medium carbon alloy high strength steel 35crmnsi was conducted, using h66025t ultrasonic generator. the result showed the mertensite lath was fined obviously and the nucleation rate was improved. it proved the theory that the propagation of elastic wave in austenite can promote the nucleation of martensitic transformation
採用h66025t超聲波發生儀，對中碳合金高強度鋼35crmnsi進行超聲波淬火，發現馬氏體板條明顯細化，提高了馬氏體相變形核率，證實了彈性波在奧氏體中傳播促進馬氏體相變形核理論。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。The lath width of martensite can be fined noticeably by pre - strained quenching at non - dynamic recrystallization to approach nanometer magnitude ( the average width is 120nm )
採用非動態再結晶溫度下的預應變-淬火，提高馬氏體相變形核率，可以超細化馬氏體的板條晶片寬度，使之接近納米量級水平（平均寬度達到120nm ） 。As for small diameter workpiece, martensite distribution can be obtained by immediately quenching
對于直徑較細的工件，軋后立即淬火幾乎可得到全部馬氏體。Martensite transformation of an ultra - high carbon steel and grain size effect on sub - structure
超高碳鋼馬氏體相變及超細晶粒對亞結構的影響分享友人