Glass forming ability of Fe₆₀Co_xZr₁₀Mo₅W₂B_23-x(x=1,3，5，7，9)bulk metallic glasses

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• 出版年：2005
• 作者：LIU Dong-yan；ZHANG Hai-feng；DENG Sheng-tao；HU Zhuang-qi
• 单位1：Shenyang National Laboratory for Materials Science
• 出生年：1971
• 学历：博士研究生
• 语种：英文
• 作者关键词：bulk metallic glasses；glass foming ability；thermal stability；copper mould casting
• 起始页：111
• 总页数：4
• 经费资助：国家重点基础研究发展规划（No.67201）；国家自然科学基金（No.50274064）和钢铁联合研究基金（No.50471077）
• 刊名：材料与冶金学报
• 是否内版：否
• 刊频：季刊
• 创刊时间：2002
• 主办单位：东北大学
• 主编：左良
• 地址：沈阳市文化路3号巷11号东北大学114信箱
• 邮编：110004
• 电子信箱：huji@chinajournal.net.cn
• 卷：4
• 期：2
• 期刊索取号：P750.6 334
• 数据库收录：俄罗斯《文摘杂志》(AJ，VINITI)；美国《化学文摘》(CA)；美国《剑桥科学文摘社网站：金属 索引》(CSA:MD，METADEX)；美国《剑桥科学文摘社网站：机械与运输工程文摘》(CSA:MT- EA)；美国《剑桥科学文摘社网站：机械工程文摘》(CSA：MEA)；美国《剑桥科学文摘社网站：土 木工程文摘》(CSA：CEA)；美国《剑桥科学文摘社网站：腐蚀文摘》(CSA:CorrA)；美国《剑桥科 学文摘社网站：电子与通讯文摘》(GSA:ECA)；《中国学术期刊（光盘版）》和《中国期刊网》全文 数据

摘要

The bulk Fe₆₀Co_xZr₁₀Mo₅W₂B_23-x (x= 1, 3, 5, 7, 9) amorphous rods with diameters of1.5 mm were successfully prepared by copper mold casting method with the low purity raw materials.The amorphous and crystalline states, and thermal parameters, such as the glass transition temperature(T_g ) , the initial crystallization temperature ( T_x ) , the supercooled liquid region ( ΔT_x=T_x -T_g) , the reduced glass transition temperature Trg ( T_g/T_m : the onset temperature of melting of the alloy, and T_g/T₁ , T₁ : the finished temperature of melting of the alloy) were investigated by X-ray diffractometry (XRD) and differential scanning calorimetry (DSC) analysis. Glass forming ability of Fe₆₀Co_xZr₁₀Mo₅W₂B_23-x (x= 1, 3, 5, 7, 9) bulk metallic glasses has been studied. According tothe results, the alloy (x= 7) with the highest Trg ( T₈/ T₁ = 0. 607, T_g/T₁ = 0. 590) value, has the strongest glass forming ability among these alloys because its composition is near eutectic composition.The wide supercooled liquid region over 72 K indicates the high thermal stability for this alloy system.This bulk metallic glass exhibits quite high strength ( Hv 1020). The success of production of the Febasedbulk metallic glass with industrial materials is of great significance for the future progress ofbasic research and practical application.