馬氏體轉變 的英文怎麼說
中文拼音 [mǎshìtǐzhuǎnbiàn]
馬氏體轉變
英文
martensite transfor mation-
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。Study on valence electron theory of phase relationship in a m transformation
奧氏體向馬氏體轉變時位向關系的價電子理論研究The result showed that plastic deformation during pre - strain played an restrained role on the growth of martensite ( especially in the direction of lath width ) and increase the nucleation rate indirectly ; the elastic energy induced by plastic deformation restrain the transformation of primary martensite but accelerate the transformation of after martensite
實驗結果表明：預應變過程中造成的塑性變形對馬氏體生長（尤其是寬度方向）有約束作用，起間接提高馬氏體形核率的作用，所儲備的彈性應變能對初生馬氏體的轉變有抑制作用，但對繼生馬氏體的轉變卻有促進作用。
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