中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
3期
712-717
,共6页
王兴华%王葛%朱玉英%鲍金峰%杜雄飞%李强
王興華%王葛%硃玉英%鮑金峰%杜雄飛%李彊
왕흥화%왕갈%주옥영%포금봉%두웅비%리강
机械合金化%非晶与纳米晶合金%饱和磁化强度%放电等离子烧结
機械閤金化%非晶與納米晶閤金%飽和磁化彊度%放電等離子燒結
궤계합금화%비정여납미정합금%포화자화강도%방전등리자소결
mechanical alloying%amorphous and nanocrystalline alloys%saturation magnetization%spark plasma sintering
采用机械合金化技术制备Fe75Zr3Si13B9非晶合金粉体，利用SPS放电等离子烧结技术在不同烧结温度下将非晶合金粉体制备成d20 mm×7 mm的块体非晶纳米晶合金。采用XRD和DSC分析了Fe75Zr3Si13B9非晶合金粉体的相组成、玻璃转变温度Tg、开始晶化温度Tx和晶化峰温度Tp。然后利用XRD、SEM、Gleeble3500、VSM分析不同烧结温度下块体的相转变、微观形貌、力学性能和磁性能。研究表明，在500 MPa的烧结压力下，随着烧结温度的升高，非晶相开始晶化形成非晶纳米晶双相结构，同时，样品的致密度、抗压强度、微观硬度、饱和磁化强度均显著提高。最后在500 MPa的烧结压力和863.15 K的烧结温度下，获得密度6.9325 g/cm3、抗压强度1140.28 MPa、饱和磁化强度1.28 T的非晶纳米晶磁性材料。
採用機械閤金化技術製備Fe75Zr3Si13B9非晶閤金粉體，利用SPS放電等離子燒結技術在不同燒結溫度下將非晶閤金粉體製備成d20 mm×7 mm的塊體非晶納米晶閤金。採用XRD和DSC分析瞭Fe75Zr3Si13B9非晶閤金粉體的相組成、玻璃轉變溫度Tg、開始晶化溫度Tx和晶化峰溫度Tp。然後利用XRD、SEM、Gleeble3500、VSM分析不同燒結溫度下塊體的相轉變、微觀形貌、力學性能和磁性能。研究錶明，在500 MPa的燒結壓力下，隨著燒結溫度的升高，非晶相開始晶化形成非晶納米晶雙相結構，同時，樣品的緻密度、抗壓彊度、微觀硬度、飽和磁化彊度均顯著提高。最後在500 MPa的燒結壓力和863.15 K的燒結溫度下，穫得密度6.9325 g/cm3、抗壓彊度1140.28 MPa、飽和磁化彊度1.28 T的非晶納米晶磁性材料。
채용궤계합금화기술제비Fe75Zr3Si13B9비정합금분체，이용SPS방전등리자소결기술재불동소결온도하장비정합금분체제비성d20 mm×7 mm적괴체비정납미정합금。채용XRD화DSC분석료Fe75Zr3Si13B9비정합금분체적상조성、파리전변온도Tg、개시정화온도Tx화정화봉온도Tp。연후이용XRD、SEM、Gleeble3500、VSM분석불동소결온도하괴체적상전변、미관형모、역학성능화자성능。연구표명，재500 MPa적소결압력하，수착소결온도적승고，비정상개시정화형성비정납미정쌍상결구，동시，양품적치밀도、항압강도、미관경도、포화자화강도균현저제고。최후재500 MPa적소결압력화863.15 K적소결온도하，획득밀도6.9325 g/cm3、항압강도1140.28 MPa、포화자화강도1.28 T적비정납미정자성재료。
Fe75Zr3Si13B9 magnetic amorphous powders were fabricated by mechanical alloying. Bulk amorphous and nanocrystalline alloys with 20 mm in diameter and 7 mm in height were fabricated by the spark plasma sintering technology at different sintering temperatures. The phase composition, glass transition temperature (Tg), onset crystallization temperature (Tx), peak temperature (Tp) and super-cooled liquid region (ΔTx) of Fe75Zr3Si13B9 amorphous powders were analyzed by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The phase transition, microstructure, mechanical properties and magnetic performance of the bulk alloys were discussed with X-ray diffractometer, scanning electron microscope (SEM), Gleeble 3500 and vibration sample magnetometer (VSM), respectively. It is found that with the increase in the sintering temperature at the pressure of 500 MPa, the density, compressive strength, micro-hardness and saturation magnetization of the sintering samples improved significantly, the amorphous phase began to crystallize gradually. Finally, the desirable amorphous and nanocrystalline magnetic materials at the sintering temperature of 863.15 K and the pressure of 500 MPa have a density of 6.9325 g/cm3, a compressive strength of 1140.28 MPa and a saturation magnetization of 1.28 T.
