If this alloy is homogenized at 700℃ for 6h and slow cooled, the structure is that of large grains of α with twins, surrounded by coarse α+δ eutectoid.

這個(gè)合金如果在700℃均質(zhì)化6小時(shí)免费无码网站永久在线播放，它的結(jié)構(gòu)成為大顆粒的α孿晶相又黄又爽爽女性爽喷水视频，周圍包裹著粗糙的α+δ共熔相人人看人人看。

The results show that dynamic softening is easy to occur in these ingots and flow stress becomes steady finally; the material constants of hot deformation are procedural parameters that stress-level coefficient α, strain rate sensibility exponent m and deformation activation energy Q are all increased with strain increasing, while stress exponent n is decreased gradually; the values α and m of the alloy homogenized are the biggest and the value n is the smallest, dynamic softening effect of the alloy is the most obvious, which can deform evenly; influence of strain on the value Q of the alloy homogenized is a little and the average value of Q is only 176.5kJ/mol, so the alloy is easy to deform; the alloy matrix shows the regular recrystallization grains when the strain is 50%; dislocation cell structure re-formed in the grains with increase of strain.

結(jié)果表明：經(jīng)不同處理的Al-1Mn-1Mg合金均易發(fā)生動態(tài)軟化并最終呈現(xiàn)穩(wěn)態(tài)流變特征在线欧美一区爱视；熱變形材料常數(shù)是過程量精品偷拍日韩第一页视频网站，隨應(yīng)變量的增加高中女生屁股被操在线播放视频，應(yīng)力水平參數(shù)α、應(yīng)變速率敏感性指數(shù)m和熱變形激活能 Q 隨之增大AAAAAA黄色片，而應(yīng)力指數(shù) n 則逐漸減杏稚置陀只频氖悠怠；均勻化退火后亚洲中文字幕一区二区精品，鋁合金的α和m值最大而n值最小日韩超碰经典在线，動態(tài)軟化效果最明顯且變形均勻，在該狀態(tài)下欧美尤物国产精品激情在线，鋁合金的 Q 值受變形量影響小丁香五月婷婷久久HD，平均僅為176.5kJ/mol，易進(jìn)行熱變形亚洲网站在线观看人成；當(dāng)應(yīng)變量為0.7時(shí)久久综合精品5555，基體呈現(xiàn)規(guī)則的再結(jié)晶晶粒組織，隨著應(yīng)變量的增加成人偷乱人伦精品视频在线观看网站，晶內(nèi)重新形成了位錯(cuò)胞結(jié)構(gòu)色喲喲国产精品。

The microstructure evolution and composition distribution of the 7A55 cast and homogenized alloy were studied by optical microscopy, scanning electron microcopy, energy dispersive spectrometer, transmission electron microscopy and X-ray diffractometry. The homogenizing and overburnt temperatures of the alloy were determined. Meanwhile, the diffusion kinetics of the alloy elements during homogenizing treatment was investigated and the homogenizing kinetic equation was deduced according to Fick's First Law of diffusion. The diffusion of alloy elements, precipitation of Al3Zr particles and the conglomeration and globe of the insoluble phases were explained by the equation during homogenization.

摘 要：采用光學(xué)顯微鏡、掃描電鏡看国产到91、能譜分析欧美黄片免费看,性生活、透射電鏡和X射線衍射分析等研究了7A55合金鑄態(tài)與均勻化顯微組織演化與成分分布，確定了該合金的均勻化處理溫度與過燒溫度怡红院老首页主页入口，研究了鑄錠均勻化動力學(xué)過程免费在线日本视频，利用菲克定理導(dǎo)出了均勻化動力學(xué)方程，利用動力學(xué)方程對均勻化過程中合金元素的擴(kuò)散亚洲欧美自拍另类日韩、 Al3Zr的析出全免费又大粗又黄又爽、難熔相的聚集和球化現(xiàn)象進(jìn)行了解釋。

homogenization temperature：均化溫度,均化溫度

homogenization of glass 玻璃的勻化 | homogenization temperature 均化溫度,均化溫度 | homogenized alloy 均質(zhì)合金,均質(zhì)合金

homogenized cream：均質(zhì)奶油,均質(zhì)奶油

homogenized alloy ==> 均質(zhì)合金,均質(zhì)合金 | homogenized cream ==> 均質(zhì)奶油,均質(zhì)奶油 | homogenized equation ==> 均質(zhì)流方程式

homogenized cream：均質(zhì)奶油

homogenized alloy ==> 均質(zhì)合金 | homogenized cream ==> 均質(zhì)奶油 | homogenized equation ==> 均質(zhì)流方程式