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摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 = = A Stu...

施坤享

摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 = = A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints /

Record Type:	Language materials, printed : Monograph/item
Title/Author:	摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 =/ 施坤享.
Reminder of title:	A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints /
remainder title:	A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints.
Author:	施坤享
Published:	雲林縣 :國立虎尾科技大學 , : 民113.07.,
Description:	[8], 85面 :圖, 表 ; : 30公分.;
Notes:	指導教授: 楊崇煒.
Subject:	failure analysis. -
Online resource:	電子資源

摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 = = A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints /
施坤享

摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 =A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints /A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints.施坤享. - 初版. - 雲林縣 :國立虎尾科技大學 ,民113.07. - [8], 85面 :圖, 表 ;30公分.

指導教授: 楊崇煒.

碩士論文--國立虎尾科技大學材料科學與工程系材料科學與綠色能源工程碩士班.

含參考書目.

本研究將AM60B鎂合金與純度為99.995 wt.%之商用純鋅利用摩擦攪拌銲接製程(FSW)進行異質金屬接合，探討FSW鎂鋅異質金屬接合之微觀組織特徵與拉伸機械性質。FSW異質接合實驗參數為固定摩擦攪拌棒之旋轉速度(rpm)並調整在不同攪拌銲接速率(mm/s)下，以FSW進行AM60B/Zn異質金屬接合之攪拌銲接區(WZ)微觀組織特徵觀察、相組成分析、硬度值變化及FSW異質金屬接合之拉伸破壞特徵分析與探討。實驗結果顯示以FSW對AM60B/Zn異質金屬攪拌接合之WZ區，由於攪拌銲接過程中攪拌棒與金屬基材之間所產生高摩擦熱使金屬基材軟化，並藉由劇烈攪拌塑性流而進行鎂鋅異質金屬接合，在WZ區亦發現具有動態再結晶之晶粒細化效應，在較慢的FSW銲接速率下，位於ND面及WD面之WZ區中發現晶粒徑顯著細化且平均分布現象，然而當銲接速率較快則晶粒徑較不平均且晶粒細化效應較不明顯，另外亦利用SEM觀察異質銲接SZ區因摩擦攪拌所產生之Mg/Zn金屬間化合物(IMCs)，並利用EDS分析WZ區之IMCs顆粒分佈情形。根據XRD繞射分析結果顯示，分佈於FSW異質接合WZ區中的IMCs化合物相組成及型態會受到在不同銲接速率所產生摩擦熱之影響而有所差異。維氏硬度試驗顯示銲接速率較快之鎂鋅異質接合銲道WZ區之硬度值約為HV275，銲接速率較慢之銲道WZ區硬度值則達到HV350。在較慢之銲接速率下AM60B/Zn異質金屬接合之最大抗拉強度約9.01 MPa，應變達到約1.31 %，導致產生脆性斷面使抗拉強度大幅降低，然而在銲接速率較快時，最大抗拉強度達到26.29 MPa，應變為4.01 %，其拉伸機械性質顯著上升。.

(平裝)Subjects--Topical Terms:

1450213
failure analysis.

摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 = = A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints /
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100 1 $a 施坤享 $3 1448887
245 1 0 $a 摩擦攪拌鎂/鋅異質金屬接合微觀組織及拉伸機械性質研究 = $b A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints / $c 施坤享.
246 1 1 $a A Study of Microstructural Features and Tensile Mechanical Properties of Friction Stir Welded Mg-Zn Dissimilar Joints.
250 $a 初版.
260 # $a 雲林縣 : $b 國立虎尾科技大學 , $c 民113.07.
300 $a [8], 85面 : $b 圖, 表 ; $c 30公分.
500 $a 指導教授: 楊崇煒.
500 $a 學年度: 112.
502 $a 碩士論文--國立虎尾科技大學材料科學與工程系材料科學與綠色能源工程碩士班.
504 $a 含參考書目.
520 3 $a 本研究將AM60B鎂合金與純度為99.995 wt.%之商用純鋅利用摩擦攪拌銲接製程(FSW)進行異質金屬接合，探討FSW鎂鋅異質金屬接合之微觀組織特徵與拉伸機械性質。FSW異質接合實驗參數為固定摩擦攪拌棒之旋轉速度(rpm)並調整在不同攪拌銲接速率(mm/s)下，以FSW進行AM60B/Zn異質金屬接合之攪拌銲接區(WZ)微觀組織特徵觀察、相組成分析、硬度值變化及FSW異質金屬接合之拉伸破壞特徵分析與探討。實驗結果顯示以FSW對AM60B/Zn異質金屬攪拌接合之WZ區，由於攪拌銲接過程中攪拌棒與金屬基材之間所產生高摩擦熱使金屬基材軟化，並藉由劇烈攪拌塑性流而進行鎂鋅異質金屬接合，在WZ區亦發現具有動態再結晶之晶粒細化效應，在較慢的FSW銲接速率下，位於ND面及WD面之WZ區中發現晶粒徑顯著細化且平均分布現象，然而當銲接速率較快則晶粒徑較不平均且晶粒細化效應較不明顯，另外亦利用SEM觀察異質銲接SZ區因摩擦攪拌所產生之Mg/Zn金屬間化合物(IMCs)，並利用EDS分析WZ區之IMCs顆粒分佈情形。根據XRD繞射分析結果顯示，分佈於FSW異質接合WZ區中的IMCs化合物相組成及型態會受到在不同銲接速率所產生摩擦熱之影響而有所差異。維氏硬度試驗顯示銲接速率較快之鎂鋅異質接合銲道WZ區之硬度值約為HV275，銲接速率較慢之銲道WZ區硬度值則達到HV350。在較慢之銲接速率下AM60B/Zn異質金屬接合之最大抗拉強度約9.01 MPa，應變達到約1.31 %，導致產生脆性斷面使抗拉強度大幅降低，然而在銲接速率較快時，最大抗拉強度達到26.29 MPa，應變為4.01 %，其拉伸機械性質顯著上升。.
520 3 $a This paper, Mg/Zn dissimilar joints of AM60B and commercial pure Zn (99.995 wt.%) are welded by a friction stir welding (FSW) process, which is determined and performed with various welding rate (mm/s) under a fixed rotational speed of the stirring tool (rpm). The aim of the present study is to examine the microstructural features of the stir zone (WZ), phase composition analysis, variation of hardness, tensile mechanical properties and tensile failure behaviors analysis of FSW AM60B/Zn dissimilar joints.The experimental results showed that in the welded zone (WZ) of the AM60B/Zn dissimilar metal joint using FSW, the high frictional heat generated between the stirring pin and the metal substrate during the welding process caused the metal substrates to soften. This, combined with intense stirring plastic flow, resulted in the joining of magnesium and zinc dissimilar metals. In the WZ, a dynamic recrystallization grain refinement effect was observed. At a slower FSW welding speed, significant grain refinement and uniform grain distribution were found in the WZ on the ND and WD surfaces. However, at a faster welding speed, the grain size was less uniform, and the grain refinement effect was less pronounced. SEM observations of the stirred zone (WZ) of the dissimilar joint revealed Mg/Zn intermetallic compounds (IMCs) formed due to friction stirring. EDS was used to analyze the distribution of IMCS particles in the WZ. XRD diffraction analysis results indicated that the phase composition and morphology of IMCs in the WZ of the FSW dissimilar joint were affected by the frictional heat generated at different welding speeds. Vickers hardness tests showed that the hardness of the WZ in the magnesium-zinc dissimilar joint was about HV275 at a faster welding speed, while at a slower welding speed, the hardness reached HV350. Therefore, at a slower welding speed, the maximum tensile stress was 9.01 MPa, with a strain of about 1.31%, resulting in a brittle fracture surface and significantly reducing tensile strength. Conversely, at a faster welding speed, the maximum tensile stress reached 26.29 MPa, with a strain of 4.01%, leading to a slight increase in tensile strength..
563 $a (平裝)
650 # 4 $a failure analysis. $3 1450213
650 # 4 $a tensile test. $3 1150797
650 # 4 $a hardness. $3 1175927
650 # 4 $a microstructure. $3 997973
650 # 4 $a nonferrous metals. $3 1450212
650 # 4 $a dissimilar joints. $3 1450211
650 # 4 $a friction stir welding(FSW). $3 1450210
650 # 4 $a 破壞分析. $3 1450209
650 # 4 $a 拉伸試驗. $3 1150792
650 # 4 $a 硬度. $3 1011581
650 # 4 $a 微觀組織. $3 998365
650 # 4 $a 非鐵金屬. $3 1450208
650 # 4 $a 異質接合. $3 1253172
650 # 4 $a 摩擦攪拌銲接. $3 998367
856 7 # $u https://handle.ncl.edu.tw/11296/renwt9 $z 電子資源 $2 http