微合金元素 meaning in English
microalloy element
Examples
- It is possible to suppress brittleness and increase the strength and toughness by optimizing heat treatment process especially for microalloyed steels 50crv . in addition , heat processing for microalloyed steels socrv was investigated in principle in the paper
通过微合金元素产生的沉淀强化，可以弥补回火造成的强韧性的下降，设计最佳的热处理综合工艺将可以同时提高钢的强度和韧性，同时还可保持一定的硬度。 - In this paper through variation of the original chemical ingredients of the shaft , which is 20mnsi ， a elementary investigation was made on the mechanical properties of the shaft which be affected by the addition of appropriate quantities of the minor elements such as rare earth , v , ni . the analysis of the microstructure and the photomicrography of the effects under the quantities of minor elements are precisely available by means of the sem energy analysis the mechanical properties of the new steel are tested under the normal situation
本文是在20mnsi锚杆原始材质的基础上加入适量的复合稀土、钒和镍等微合金元素。通过改变锚杆原始材料的化学成分的配方进行了大量的实验研究。利用扫描电镜、能谱分析等对所得新材质的组织、形貌以及稀土、镍、钒成分对它们的影响进行了分析。 - 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
为解释微合金化50crv钢强韧化机理，本文通过对不同淬火温度，回火温度，回火时间下的力学性能指标的对比及显微分析，认为微合金元素的细化晶粒，马氏体的回火分解，残余奥氏体的转变，第二相的沉淀析出共同决定了微合金钢的强韧化情况，特别是由于微合金元素的存在，其细化晶粒及其碳氮化物的沉淀析出，导致钢的良好的强韧性，并且如果工艺满足第二相的沉淀析出强化大于回火马氏体分解引起的软化效应，会在硬度曲线中产生明显的二次硬化现象。 - There would be found distinct second " hardening apex in the curve when a conclusion was drawn that i : is likely that the most effective measurement to increase the strength and toughness is to fine grains and precipitate carbide nucleates of microalloyed elements , especially , fined grains of microalloyed elements increase the strength and toughness greatly
结论；综上所述，在一定的热处理工艺下，提高微合金化50crv钢强韧性的最有效的方法是细化晶粒和沉淀强化，特别是微合金元素的细化晶粒强化作用。 - Based on results of a large number of runs ， the following conclusions can be made at this stage of research . the fensile strength of the new steel added micro alloyed process is 1 . 1 times . as large as that of original specimens . impact toughness improved by 300 % , elongation ratio increased by 79 % hardness has a little improvement than before . the obtained results demonstrate that the new material has supermechanical properties with the addition of the micro allolyed process
并在常温下对合金化钢的力学性能进行了测试。试验结果表明，通过微合金化抗拉强度提高了10 . 2 % ，冲击韧性提高300 % ，延伸率提高了79 . 5 % ，硬度稍有提高。总之，加入复合稀土、钒、镍等微合金元素提高了材料的综合机械性能。