以鐵基金屬玻璃複材或金屬玻璃鍍膜製作手術用取皮刀並進行模擬切削性能之研究

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姓名

陳致宇(Chih-Yu Chen) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

以鐵基金屬玻璃複材或金屬玻璃鍍膜製作手術用取皮刀並進行模擬切削性能之研究
(The study on simulated cutting performance of surgical skin-grafting blades made by Febased bulk metallic glass composites or coated with Fe-based metallic glass thin film)

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摘要(中)

鐵基非晶質合金又稱於非晶質鋼材(Bulk Amorphous Steel, BAS)，具有
優良玻璃形成能力、高強度、高硬度、耐磨耗以及良好耐腐蝕特性，相較於
其他金屬玻璃，如鋯基、鈦基等，鐵基非晶質合金擁有更高機械強度且低製
備成本，但由於其韌性較低，在應用上仍有限制。
本研究以Fe-Cr-Mo-C-B-Y-Co 為主要成分，根據金屬玻璃形成之三大
準則及微量添加法，選擇添加不同原子百分比延性金屬:鉭(Ta)配製出系列
合金，並以真空吸鑄法製做出直徑2~4 mm 的非晶質複合棒材，在冷卻時碳
化鉭析出成為非晶質合金內的第二相，使得鐵基非晶質合金之整體韌性獲
得改善，其破裂韌性數值有效提升至10.2 ± 0.9 MPa∙m^1⁄2，相較於未添加延性顆粒之基材有顯著提升(5.13 ± 0.9 MPa∙m1⁄2)，並以此複材製作取皮刀刀片進行刀具銳利度分析。
同時，本研究也以直流磁控濺鍍法鍍覆鐵基金屬玻璃薄膜在取皮刀刀
片上，透過取皮模擬測試以及BSI測試刀片切削性能。經過15 cm取皮測試
後，鐵基金屬玻璃複材取皮刀、鐵基非晶質鍍膜300 nm、400 nm膜厚取皮
刀、商用取皮刀的刀具銳利指標(BSI)數值分別提高至0.35、0.49、0.49、0.53，
由此驗證出鐵基金屬玻璃複材取皮刀耐磨耗能力佳，經取皮測試後仍保有
優良的切割能力。

摘要(英)

Fe-based amorphous alloys, also known as, bulk amorphous steel (BAS), exhibit not only impressive mechanical properties such as high hardness and compressive strengths but also good anti-corrosion and wear resistance. In this
study, several BASs are made of cast iron which reduced the manufacture cost.However, all these BAS materials are extremely brittle and strongly restrict their applications as engineering or structure materials.
The purpose of this study is to enhance the fracture toughness by dispersion strengthening method.. A series of Fe-Cr-Mo-C-B-Co-Y-Ta bulk amorphous steel
composites (BASCs) were successfully fabricated by suction casting.X-ray diffraction(XRD) and differential scanning calorimetry(DSC) are conducted to examine the amorphous structure of these BASCs. Indentation testing and
ultrasonic echography were applied to characterize the mechanical properties of these BASCs. The results show that all Fe-based BASCs present much higher fracture toughness (10.2±0.9 MPa∙m1/2) than the based one (5.13±0.9 MPa∙m^1/2).
The Fe-based BASC further processed into a surgical skin-grafting blade as well as the sputter target to deposit thin film amorphous steel (TFAS) for the investigation of initial grafting ability and durability performance of 15 cmgrafting
path in comparison with commercial one.
Both Fe-based BASC and Fe-based TFAS blades exhibited much lower cutting energy than the commercial one. After 15cm skin-grafting test, the BSI value of BASC and TFAS skin-grafting blade still remain under blunt level
(BSI<0.5), where the commercial one is increased from 0.35 to 0.53, which is considered as a blunt blade.

關鍵字(中)

★ 鐵基非晶質複合材料
★ 破裂韌性
★ 手術用取皮刀

關鍵字(英)

★ Bulk amorphous steel composites (BASCs)
★ Fracture toughness
★ Skin grafting blade

論文目次

目錄
中文摘要..... I
Abstract..... II
誌謝..... III
目錄..... V
表目錄..... IX
圖目錄..... X
第一章緒論..... 1
1-1 前言..... 1
1-2 研究目的..... 2
第二章理論基礎..... 5
2-1 非晶質合金概述..... 5
2-2 非晶質合金發展..... 5
2-3 非晶質合金種類..... 7
2-3-1 鐵基非晶質合金系統..... 8
2-4 非晶質合金之設計與製作..... 8
2-4 -1 實驗歸納法則..... 8
2-4-2 微量元素添加對非晶質合金系統之影響..... 10
2-4-3 非晶質合金製程..... 11
2-5 非晶質合金性質..... 12
2-5-1 機械性質..... 12
2-5-2 熱力學性質..... 13
2-5-3 非晶質合金複材性質..... 15
2-6 刀鋒銳利指數 (Blade Sharpness Index，BSI)..... 15
2-6-1 計算切割能量，Ei..... 16
2-6-2 計算橡皮破裂韌性，JIC..... 17
2-6-3 BSI 數值分析..... 17
2-7 電化學測試法(Electrochemical tests)..... 18
第三章實驗步驟與方法..... 26
3-1 實驗流程..... 26
3-2 合金材料製備..... 26
3-2-1 合金配置..... 26
3-2-2 合金融煉..... 27
3-2-3 金屬玻璃棒材與板材製作(真空吸鑄法)..... 27
3-2-4 合金靶材製作..... 27
3-2-5 金屬玻璃薄膜取皮刀製備..... 28
3-2-6 金屬玻璃複合材料取皮刀製備..... 28
3-3 材料性質分析..... 29
3-3-1 成分分析..... 29
3-3-2 熱性質分析..... 29
3-3-3 微結構分析(X 光繞射)..... 30
3-3-4 表面形貌分析(掃描式電子顯微鏡)..... 30
3-3-5 塊材硬度量測..... 30
3-3-6 楊氏模數量測..... 31
3-3-7 破裂韌性量測..... 31
3-4 薄膜性質分析..... 32
3-4-1 薄膜厚度分析..... 32
3-4-2 薄膜附著力分析..... 32
3-4-3 薄膜硬度量測..... 33
3-5 取皮行為與刀具銳利度測試分析..... 33
3-5-1 取皮行為模擬測試..... 33
3-5-1 刀具銳利度測試..... 34
3-6 腐蝕性質-電化學測試..... 35
第四章結果與討論..... 52
4-1 成分分析..... 52
4-2 微結構分析..... 53
4-2-1 X 光繞射分析..... 53
4-2-2 鐵基非晶質塊材析出物散布觀察..... 53
4-3 熱性質分析..... 54
4-4 機械性質分析..... 55
4-4-1 楊氏模數分析..... 55
4-4-2 硬度與破裂韌性分析..... 55
4-5 薄膜性質分析..... 56
4-5-1 薄膜附著力分析..... 56
4-5-2 薄膜硬度分析..... 56
4-6 刀具測試與分析..... 57
4-6-1 取皮模擬行為..... 57
4-6-2 BSI(銳利度)測試..... 57
4-6-3 刀鋒表面觀察..... 58
4-7 腐蝕性質分析..... 59
4-7-1 腐蝕後試片表面觀察..... 60
第五章結論 ..... 78
第六章參考文獻 ..... 80

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指導教授

鄭憲清(Shian-Ching Jang)

審核日期

2015-7-13

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