【正文】 摘 要近年來(lái)，塊狀非晶合金的研究取得了重大進(jìn)展，人們開發(fā)出了許多塊狀非晶合金系列。非晶合金在化學(xué)結(jié)構(gòu)方面由單一的均勻固體相組成，沒有像晶體那樣的結(jié)構(gòu)缺陷，如位錯(cuò)、晶格缺陷、晶界、孿晶、層錯(cuò)等。非晶態(tài)合金中原子排列是長(zhǎng)程無(wú)序的，所以非晶合金的這種化學(xué)結(jié)構(gòu)的均一性，使得非晶態(tài)合金具有良好的耐腐蝕性能。深入研究塊狀非晶合金的抗腐蝕性能無(wú)論在理論上還是實(shí)際中都具有十分重要的意義。本文利用 XRay 衍射儀、電化學(xué)工作站、電弧爐等設(shè)備手段、制備研究、分析了ZrCuAlNb 大塊非晶的耐蝕性，利用浸泡法和電化學(xué)法研究了ZrCuAlNb大塊非晶合金在酸堿鹽中的腐蝕行為。實(shí)驗(yàn)結(jié)果表明：利用浸泡實(shí)驗(yàn)和極化曲線分析可知，ZrCuAlNb塊體非晶合金在HNO H 2SONaOH 溶液中有較好的耐蝕性，同時(shí)還得出在氫氧化鈉溶液中NbNb2的耐蝕性更好一些，而Nb含量的多少對(duì)非晶合金在硫酸和硝酸中耐蝕性的影響不是太明顯。非晶合金在含Cl 的環(huán)境中耐腐蝕性較差，并且隨著Nb含量的增加耐蝕性逐漸增強(qiáng)，尤其是在鹽酸溶液中其耐蝕性是最差的，通過比較發(fā)現(xiàn)Nb5在含有Cl 溶液中耐蝕性是最好的。關(guān)鍵詞：非晶合金 腐蝕性 失重法 極化曲線 溶液 Abstract Recently，the studies on bulk amorphous alloys have achieved a great development． Amorphous alloy in chemical structure of solid phase by a single ponent, not even as crystal structure of such defects such as dislocations, lattice defects, grain, crystal, dislocations noninfarctrelated etc. Amorphous alloys in disorder, is longrange arrangement of amorphous alloy so the chemical structure, the uniformity of amorphous alloys has good corrosion resistance It is very important to further study the corrosion behavior of bulk amorphous alloys in theory and application． The corrosion resistance of ZrCuAlNb bulk amorphous alloy have been investigated by electrochemistry workstation, XRay diffraction and other used soaking method and electrochemical method studied the corrosion behavior of ZrCuAlNb block amorphous alloy in acid,alkali and salt solution. The result of immersion test and polarization curve analysis shows that ZrCuAlNb block amorphous alloy has a good corrosion resistance in HNO3,H2SO4 and NaOH solution and also obtained in the NaOH solution Nb1, Nb2 better corrosion resistance. The number of Nb content on the corrosion resistance of amorphous alloys is not too obvious in H2SO4 and HNO3 solution. Amorphous alloy in chloride ion environments poor corrosion resistance and with the increase of Nb content gradually increased corrosion resistance,especially in the hydrochloric acid corrosion resistance is the worst, and by parison, Nb5 in the presence of chloride ions in solution is the best corrosion resistance.Keywords: amorphous alloys corrosive soaking method polarization curve目 錄摘 要 ............................................................................................................................IAbstract........................................................................................................................II目 錄 .........................................................................................................................III第一章 緒 論 ........................................................1 國(guó)內(nèi)外非晶的研究進(jìn)展 ......................................................................................1 非晶合金的性能 ..................................................................................................2 大塊非晶合金的形成機(jī)制 ..................................................................................3 成分結(jié)構(gòu)條件 ..............................................................................................4 熱力學(xué)條件 ..................................................................................................5 動(dòng)力學(xué)條件 ..................................................................................................6 大塊非晶的制備 ..................................................................................................6 吸鑄法 ..........................................................................................................7 固結(jié)成型法 ..................................................................................................7 鋯基大塊非晶合金的耐腐蝕性研究現(xiàn)狀 ..........................................................9 合金的組成元素和元素含量 .....................................................................9 腐蝕介質(zhì)的影響 .......................................................................................12 本次實(shí)驗(yàn)內(nèi)容及其目的 ....................................................................................12第二章 實(shí)驗(yàn)內(nèi)容和方法 ..............................................14 試樣的制備及其過程 .......................................................................................14 合金材料的成分配置 ...............................................................................14 母合金的熔煉 ...........................................................................................15 實(shí)驗(yàn)所用主要儀器 ...........................................................................................16 浸泡實(shí)驗(yàn) ...........................................................................................................21 實(shí)驗(yàn)簡(jiǎn)介 ...................................................................................................21 實(shí)驗(yàn)方法 ...................................................................................................22 實(shí)驗(yàn)步驟 ...................................................................................................22 電化學(xué)實(shí)驗(yàn) .......................................................................................................23第三章 ZrCuAlNb 非晶合金的耐蝕性 ...................................26 非晶合金的組織測(cè)試 .......................................................................................26 浸泡試驗(yàn)現(xiàn)象及結(jié)果分析 ...............................................................................27 實(shí)驗(yàn)現(xiàn)象 ....................................................................................................27 實(shí)驗(yàn)結(jié)果及分析 ........................................................................................27 非晶合金電化學(xué)實(shí)驗(yàn) ........................................................................................31 電化學(xué)極化曲線的測(cè)量與分析 ................................................................31 電化學(xué)腐蝕后試樣形貌分析 ...........................................................................37結(jié) 論 ..............................................................39參考文獻(xiàn) ...........................................................40致 謝 ...............