1) austenite grain sizes(AGS)
奥氏体晶粒度(AGS)
2) austenite grain size
奥氏体晶粒度
1.
By means of thermal dilatation a AISI 4340 steel was austenitized at some different temperatures in a range from 900 to 1?150?℃ to obtain different austenite grain sizes(AGS),then rapidly cooled to room temperature to obtain martensitic structures.
采用膨胀法对AISI 4340钢在900~1 150℃几种不同温度下进行奥氏体化,以得到不同的奥氏体晶粒度(AGS),然后快速冷却到室温,得到马氏体组织。
2.
The influences of titanium content on austenite grain size and grain coarsening temperature in 20MnMoB steel have been investigated.
研究了钛含量对２０ Ｍｎ Ｍｏ Ｂ钢奥氏体晶粒度及奥氏体晶粒粗化温度的影响。
3.
It is developed a fast and accurate method to examine austenite grain size in wire steel SWRH72A for steel curtain.
探索了钢帘线用线材SWRH72A奥氏体晶粒度的一种快速、准确的检测方法,采用特殊的加热制度和加热方式获得试样次表面的半脱碳层,根据沿奥氏体晶界分布的铁素体网评定钢帘线用线材真实奥氏体晶粒度。
3) austenitic grain size
奥氏体晶粒度
1.
SNCrW steel belong to an austenitic heat-resistant steel and the austenitic grain size and the carbide distribution in SNCrW steel under solution-treated condition are essential factors affecting its mechanical properties.
SNCrW钢属奥氏体耐热钢,固溶态的奥氏体晶粒度和碳化物的分布是影响其力学性能的主要因素。
4) austenite grain
奥氏体晶粒
1.
An improvement of the etching technique for displaying austenite grains in hull structure plate steel
船板钢奥氏体晶粒浸蚀显示方法的改进
2.
The austenite grains of the test steel are significantly refined after the microalloying process.
结果表明:经过钒-铌微合金化处理后,该钢的奥氏体晶粒得到显著细化;伴随着晶粒的细化,其冲击吸收功得到较大幅度的提高;在渗碳温度范围内长时间保温时不会发生奥氏体晶粒的异常长大;晶粒细化也使其渗碳层的组织和性能得到改善。
3.
The results show that when heating temperature is lower than 950℃,the experimental steel has a smaller grain dimension;when heating temperature is above 1100℃,the austenite grains grow rapidly.
研究了X70级管线钢在不同加热温度和不同保温时间下的奥氏体晶粒长大规律。
5) austenitic grain
奥氏体晶粒
1.
By means of high temperature microscope the phenomenon of austenitic grain growth in the low carbon steels(20 and 15CrMo) when heated in vacuum is observed,and its dynamic curves have been also graphied.
用高温金相显微镜观察了低碳钢 (2 0及 15CrMo钢 )在真空加热时奥氏体晶粒长大现象 ,绘制了它们的长大动力学曲线。
2.
By means of high temperature microscope to take a series of photomicrograph during heating specimen to the different temperture and graph its dynemie curves,the austenitic grain growth tendencies are compared.
用高温金相显微镜摄取了常用弹簧钢 (6 5 ,6 5Mn ,6 0Si2Mn及 5 0CrVA)奥氏体晶粒长大的系列显微照片 ,绘制了晶粒长大的动力学曲线 ,比较了奥氏体晶粒长大倾向。
3.
By means of high temperature microcope the phoromenon of athermal and isothermal growth of the austenitic grains in 65Mn steel during heating in vacuum is observed and studied.
采用高温金相显微镜观察 6 5Mn钢试样在真空加热时奥氏体晶粒的变温与恒温长大现象 ,绘出了奥氏体晶粒长大动力学曲线 ;分析了奥氏体晶粒内部的退火孪晶的各种形态及孪生变形特征。
6) austenitic grain coarsening tem-perature
奥氏体晶粒粗化温度
补充资料：晶粒度
晶粒度
grain size
2级┌────┬─┬──┬──┬──┐│晶粒度 │0 │2 │4 │6 │├────┼─┼──┼──┼──┤│放大倍数│50│100 │200 │400 │└────┴─┴──┴──┴──┘3级┌────┬─┬──┬──┬──┐│晶粒度 │1 │3 │5 │7 │├────┼─┼──┼──┼──┤│放大倍数│5O│100 │200 │400 │└────┴─┴──┴──┴──┘4级┌────┬─┬──┬──┬──┐│晶粒度 │2 │4 │6 │8 │├────┼─┼──┼──┼──┤│放大倍数│50│100 │200 │400 │└────┴─┴──┴──┴──┘5级┌────┬─┬──┬──┬──┐│晶粒度 │3 │5 │7 │9 │├────┼─┼──┼──┼──┤│放大倍数│50│100 │200 │400 │└────┴─┴──┴──┴──┘q口1-J Ingl一du晶粒度(grain size)表示晶粒大小的j对钢来说，一般指奥氏体化后的实际晶粒大小。它用奥氏体晶粒的直径或单位面积上的晶粒数n示。若晶粒大小级别为N，则n和N有这样的关~ZN一‘。n是在放大倍数200倍时，每645 mmZ值的晶粒数。晶粒越细，n和N也越大。 钢中晶粒度第一标准级别图(放大40倍)，女l不。乙以表门内所度狱编曰朴脚、气八﹃|11习/才i级┌────┬──┬──┬──┬─┐│晶粒度 │一1 │1 │3 │5 │├────┼──┼──┼──┼─┤│放大倍数│50 │100 │200 │40│└────┴──┴──┴──┴─┘﹃到l|一﹁〕 晶粒度放大倍数7级〕┌────┬─┬──┬──┬──┐│晶粒度 │5 │7 │9 │11 │├────┼─┼──┼──┼──┤│放大倍数│50│100 │200 │40C │└────┴─┴──┴──┴──┘ 晶粒度放大倍数 8级豪牛斋干瑞干橇 钢的晶粒度按其奥氏体化条件与长大倾向刁又分成起始晶粒度、实际晶粒度、本质晶粒度三 起始晶粒度指钢在临界温度以上加热，奥化过程中最初形成的奥氏体晶粒的晶粒度，即奥转变刚刚完成，其晶粒边界开始接触时的晶粒大，J称初生晶粒度。 实际晶粒度指某一实际条件下所得到的实粒大小。 本质晶粒度只代表在某一条件下，奥氏体的长大倾向。
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参考词条