本文關(guān)鍵詞：過熱度及深冷處理對鐵基非晶帶材性能的影響　出處：《沈陽工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 鐵基非晶 過熱度 退火 深冷處理 剪切帶

【摘要】：Fe-Si-B系列合金具有矯頑力低、磁導(dǎo)率高、加工性能好、成本低的特點,已被廣泛作為磁學(xué)領(lǐng)域中的功能材料,其中牌號為1K101的Fe78Si9B13非晶合金帶材已逐步替代硅鋼片用于制造變壓器的鐵芯。在條帶制備的過程中,隨著工藝參數(shù)的變化材料的磁性能很不穩(wěn)定,本文主要研究過熱度、退火溫度對Fe78Si9B13磁性能及其穩(wěn)定性的影響,試圖找到過熱度和退火溫度的對應(yīng)關(guān)系,為工業(yè)生產(chǎn)提供借鑒。另外,深冷處理作為研究材料的一種重要熱處理工藝,有利于提高材料的強度、韌性、耐磨性等性能,但深冷處理對非晶合金的影響研究甚少,本文研究了深冷處理對非晶合金性能的影響,對拓寬非晶合金的應(yīng)用領(lǐng)域具有一定的意義。本文采用單輥急冷法制備了Fe78Si9B13非晶條帶,以此為研究對象,對樣品進行了退火處理和深冷處理,并利用硅鋼測試儀和振動樣品磁強計對合金的磁性進行檢測,主要獲得如下主要結(jié)論:(1)三個過熱度下制備的Fe78Si9B13非晶合金及其經(jīng)深冷處理12h、24h、48h和96h之后的樣品經(jīng)XRD檢測均為完全非晶態(tài);過熱度的增大、深冷時間的延長均有利于提高非晶合金的過冷液相區(qū)寬度,提高熱穩(wěn)定性。(2)隨著過熱度的增大,玻璃轉(zhuǎn)變溫度Tg、晶化開始溫度Tx、第一、二晶化峰的峰值溫度Tp1,2,及對兩個峰的面積積分得到的晶化焓ΔH均呈現(xiàn)出下降的趨勢。且過熱度的增大會導(dǎo)致非晶帶材的性能穩(wěn)定性和飽和磁感應(yīng)強度降低,矯頑力和剩磁增大,適當?shù)奶岣咄嘶鸬臏囟扔兄讷@得好的性能。(3)隨著液氮深冷處理時間的延長,Fe78Si9B13非晶合金的晶化峰面積增大,晶化體積分數(shù)減小,飽和磁感應(yīng)強度升高且Bs介于淬態(tài)和360-653K退火處理之間,Tg、Tx、ΔTx、Tp1.2均發(fā)生變化,并且過冷液相區(qū)寬度高于淬態(tài)樣品。(4)深冷處理后合金樣品180°對折不會發(fā)生斷裂,且較深冷處理前韌性增加,隨著深冷時間的延長,帶材韌性增強。
[Abstract]:Fe-Si-B series alloys have been widely used as functional materials in the field of magnetism because of their low coercivity, high permeability, good processability and low cost. Among them, 1K101 Fe78Si9B13 amorphous alloy strip has been gradually replaced by silicon steel sheet for the manufacture of transformer core. In the process of strip preparation. The influence of superheat and annealing temperature on the magnetic properties and stability of Fe78Si9B13 is studied in this paper. This paper tries to find out the relationship between superheat and annealing temperature to provide reference for industrial production. In addition, cryogenic treatment is an important heat treatment process to study materials, which is helpful to improve the strength and toughness of materials. The effects of cryogenic treatment on the properties of amorphous alloys were studied in this paper. In this paper, Fe78Si9B13 amorphous strip was prepared by single roll rapid cooling method, which was used as the research object. The samples were annealed and cryogenic, and the magnetic properties of the alloy were tested by silicon steel tester and vibrating sample magnetometer. The main conclusions are as follows: (1) Fe78Si9B13 amorphous alloy prepared under three superheat conditions and treated by cryogenic treatment for 12 h or 24 h. After 48h and 96h, the samples were completely amorphous by XRD. The increase of superheat and the prolongation of cryogenic time are beneficial to increase the width of supercooled liquid zone and increase the thermal stability of amorphous alloy.) with the increase of superheat, the glass transition temperature Tg and the crystallization start temperature Tx are improved. First, the peak temperature of the crystallization peak is TP _ 1 ~ (2). And the crystallization enthalpy 螖 H obtained by the area integral of the two peaks shows a decreasing trend, and the increase of superheat will lead to the decrease of the performance stability and saturation magnetic induction intensity of amorphous strip, and the increase of coercivity and remanence magnetic field. With the increase of liquid nitrogen cryogenic treatment time, the crystallization peak area of Fe78Si9B13 amorphous alloy increases and the crystallization volume fraction decreases. The saturation magnetic induction intensity increases and Bs changes between quenched state and annealing treatment of 360-653K. Both T _ (g) T _ (x) and 螖 T _ (x) T _ (1. 2) change. And the width of supercooled liquid zone is higher than that of quenched sample. 4) after cryogenic treatment, the fracture will not occur in 180 擄fold of alloy sample, and the toughness increases compared with that before cryogenic treatment. With the prolonging of cryogenic time, the toughness of strip increases.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG139.8;TG156.91

【參考文獻】

相關(guān)期刊論文 前10條

1 何峻;趙棟梁;;非晶軟磁材料研究現(xiàn)狀與發(fā)展趨勢[J];金屬功能材料;2015年06期

2 朱宗強;傅明喜;李丙丁;吳曉蕾;王超;;預(yù)處理對鐵基非晶合金晶化過程的影響[J];特種鑄造及有色合金;2015年02期

3 金興時;鄭成琪;;某鐵基非晶合金熱穩(wěn)定性及晶化過程[J];有色金屬工程;2014年03期

4 蔣敏強;;非晶合金塑性理論研究進展[J];中國材料進展;2014年05期

5 汪衛(wèi)華;;非晶態(tài)物質(zhì)的本質(zhì)和特性[J];物理學(xué)進展;2013年05期

6 王榮豫;郝立峰;張健;矯維成;楊帆;;非晶微絲在玻璃纖維增強復(fù)合材料中的應(yīng)用[J];纖維復(fù)合材料;2013年03期

7 王知鷙;祖方遒;張先峰;王麗芳;;不同熔體溫度制備的Zr_(55)Al_(10)Ni_5Cu_(30)大塊非晶結(jié)構(gòu)弛豫[J];材料熱處理學(xué)報;2013年05期

8 萬娟;鄭志剛;王進;劉仲武;;Fe-Si-B非晶磁粉芯的制備及其軟磁性能[J];電子元件與材料;2012年10期

9 張雅楠;王有駿;孔令體;李金富;;Y對Fe-Si-B合金非晶形成能力及軟磁性能的影響[J];物理學(xué)報;2012年15期

10 尹炳坤;蔣芳;;非晶硅薄膜太陽能電池研究進展[J];廣州化工;2012年08期

，

本文編號：1423195