國立高雄大學圖資館 |

語系: 繁體中文

說明(常見問題)

圖資館首頁

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

C及Mo元素與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳影響之研究 = The ...

國立高雄大學化學工程及材料工程學系碩士班

C及Mo元素與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳影響之研究 = The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel
作者:	陳炘圻,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	2014[民103]
面頁冊數:	113面圖，表 : 30公分;
標題:	C及Mo元素含量
標題:	C and Mo contents
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/65730751638257555452
附註:	參考書目：面98-102
附註:	103年12月16日公開
摘要註:	在本研究中針對C及Mo元素含量不同的沃斯田鐵系不銹鋼，和經過預熱處理改變材料晶粒尺寸的沃斯田鐵系不銹鋼，施以500度24小時之低溫滲碳製程，並對滲碳層進行金相觀察、縱深成分、硬度分布以及XRD分析，以釐清C及Mo元素含量與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳效果之影響。由金相觀察結果得知，不銹鋼試片經過低溫滲碳後， SS304、SS316L及 SS316不銹鋼試片皆有明顯的碳層生成，其中SS316不銹鋼試片的滲碳層最厚，可達約40μm。經預熱處理後的SS316不銹鋼試片，其晶粒尺寸愈大，則滲碳效果愈差。由硬度分布結果得知，不銹鋼試片經過低溫滲碳後，除SS304不銹鋼試片的硬度提升幅度較小，而SS316L及 SS316不銹鋼試片皆有明顯的硬度提升，可達900HV0.01以上。經預熱處理後的SS316不銹鋼試片，其晶粒尺寸愈大，則硬化效果愈差。由成分分析結得知，不銹鋼試片經過低溫滲碳後，SS316不銹鋼有最大的表面碳濃度，其下降趨勢也比較緩和。經預熱處理後的SS316不銹鋼試片，其表面碳濃度隨預熱時間增加而減少，碳濃度下降趨勢隨預熱時間增加而增加。由XRD分析結果得知，不銹鋼試片經過低溫滲碳後，晶格常數皆有擴張，其擴張幅度為SS316最大SS316L次之SS304最小。經預熱處理後的SS316不銹鋼試片，其晶格擴張隨晶粒尺寸變大而有下降的趨勢。由實驗結果得知，C及Mo元素含量與晶粒尺寸確實會對對沃斯田鐵系不銹鋼低溫滲碳之效果造成影響，Mo元素添加後導致晶格擴張，使更多C原子可以擴散進入材料之中。C元素添加後，與空孔形成一特殊機制，導致滲碳效果提升。而晶粒尺寸愈大則會導致擴散路徑減少，使C無法擴散達材料更內部的位置。 The objective of this study is to clarify the influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel. In this study, austenitic stainless steel were via Low Temperature Colossal Super Saturation (LTCSS) process to investigate the microstructure of hardened layer. The characteristic of carburization layer was analyzed by microstructure, carbon concentration, hardness testing and X-ray diffraction after low-temperature carburization.From microstructure analysis results, a clear carburizing layer can be observed on 304、316L and 316 stainless steels. The carburizing layer of 316 stainless steel is the thickest among the three After prior heat treatment, 316 stainless steel show that the influences of LTCSS decrease with the increase of grain size.In hardness test, aside from the 304 stainless steel has less hardness improvement, both 316L and 316 stainless steels have a distinct hardness improvement. After prior heat treatment, 316 stainless steel show that the hardness improvement decrease with the increase of grain size.From carbon concentration analysis, 316 stainless steel has the biggest carbon concentration at the surface, and downward trend is the slightest. After prior heat treatment, the maximum carbon concentration decreases with the increase of prior heat treated time, and the increase of downward trend decreases with prior heat treated time increase.From XRD microstructure analysis, the lattice constant expanded can be observed on all the materials, and the 316 stainless steel has the biggest expansion. After prior heat treatment, 316 stainless steel show that the expand extent of lattice constant decrease with the grain size increase.The results show that the C and Mo contents and grain size will affect the result of LTCSS. The lattice constant was expanded by Mo contents results in better carburizing phenomenon. The increase of C contents exhibits a particular mechanism between C atom and vacancy, thus improving the carburizing phenomenon. The grain size change affect the diffusion path results in the above phenomenon.

C及Mo元素與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳影響之研究 = The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel
陳, 炘圻

C及Mo元素與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳影響之研究 = The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel / 陳炘圻撰 - [高雄市] : 撰者, 2014[民103]. - 113面 ; 圖，表 ; 30公分.
參考書目：面98-102103年12月16日公開.
C及Mo元素含量C and Mo contents

C及Mo元素與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳影響之研究 = The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel
LDR:05312nam0a2200289 450 001 429892
005 20170214090158.0
009 429892
010 0 $b 精裝
010 0 $b 平裝
100 $a 20170214d2014 k y0chiy05 e
101 1 $a chi $d chi $d eng
102 $a tw
105 $a ak am 000yy
200 1 $a C及Mo元素與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳影響之研究 $d The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel $z eng $f 陳炘圻撰
210 $a [高雄市] $c 撰者 $d 2014[民103]
215 0 $a 113面 $c 圖，表 $d 30公分
300 $a 參考書目：面98-102
300 $a 103年12月16日公開
314 $a 指導教授：林東毅博士
328 $a 碩士論文--國立高雄大學化學工程及材料工程學系碩士班
330 $a 在本研究中針對C及Mo元素含量不同的沃斯田鐵系不銹鋼，和經過預熱處理改變材料晶粒尺寸的沃斯田鐵系不銹鋼，施以500度24小時之低溫滲碳製程，並對滲碳層進行金相觀察、縱深成分、硬度分布以及XRD分析，以釐清C及Mo元素含量與晶粒尺寸對沃斯田鐵系不銹鋼低溫滲碳效果之影響。由金相觀察結果得知，不銹鋼試片經過低溫滲碳後， SS304、SS316L及 SS316不銹鋼試片皆有明顯的碳層生成，其中SS316不銹鋼試片的滲碳層最厚，可達約40μm。經預熱處理後的SS316不銹鋼試片，其晶粒尺寸愈大，則滲碳效果愈差。由硬度分布結果得知，不銹鋼試片經過低溫滲碳後，除SS304不銹鋼試片的硬度提升幅度較小，而SS316L及 SS316不銹鋼試片皆有明顯的硬度提升，可達900HV0.01以上。經預熱處理後的SS316不銹鋼試片，其晶粒尺寸愈大，則硬化效果愈差。由成分分析結得知，不銹鋼試片經過低溫滲碳後，SS316不銹鋼有最大的表面碳濃度，其下降趨勢也比較緩和。經預熱處理後的SS316不銹鋼試片，其表面碳濃度隨預熱時間增加而減少，碳濃度下降趨勢隨預熱時間增加而增加。由XRD分析結果得知，不銹鋼試片經過低溫滲碳後，晶格常數皆有擴張，其擴張幅度為SS316最大SS316L次之SS304最小。經預熱處理後的SS316不銹鋼試片，其晶格擴張隨晶粒尺寸變大而有下降的趨勢。由實驗結果得知，C及Mo元素含量與晶粒尺寸確實會對對沃斯田鐵系不銹鋼低溫滲碳之效果造成影響，Mo元素添加後導致晶格擴張，使更多C原子可以擴散進入材料之中。C元素添加後，與空孔形成一特殊機制，導致滲碳效果提升。而晶粒尺寸愈大則會導致擴散路徑減少，使C無法擴散達材料更內部的位置。 The objective of this study is to clarify the influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel. In this study, austenitic stainless steel were via Low Temperature Colossal Super Saturation (LTCSS) process to investigate the microstructure of hardened layer. The characteristic of carburization layer was analyzed by microstructure, carbon concentration, hardness testing and X-ray diffraction after low-temperature carburization.From microstructure analysis results, a clear carburizing layer can be observed on 304、316L and 316 stainless steels. The carburizing layer of 316 stainless steel is the thickest among the three After prior heat treatment, 316 stainless steel show that the influences of LTCSS decrease with the increase of grain size.In hardness test, aside from the 304 stainless steel has less hardness improvement, both 316L and 316 stainless steels have a distinct hardness improvement. After prior heat treatment, 316 stainless steel show that the hardness improvement decrease with the increase of grain size.From carbon concentration analysis, 316 stainless steel has the biggest carbon concentration at the surface, and downward trend is the slightest. After prior heat treatment, the maximum carbon concentration decreases with the increase of prior heat treated time, and the increase of downward trend decreases with prior heat treated time increase.From XRD microstructure analysis, the lattice constant expanded can be observed on all the materials, and the 316 stainless steel has the biggest expansion. After prior heat treatment, 316 stainless steel show that the expand extent of lattice constant decrease with the grain size increase.The results show that the C and Mo contents and grain size will affect the result of LTCSS. The lattice constant was expanded by Mo contents results in better carburizing phenomenon. The increase of C contents exhibits a particular mechanism between C atom and vacancy, thus improving the carburizing phenomenon. The grain size change affect the diffusion path results in the above phenomenon.
510 1 $a The influences of C and Mo contents and grain size on low temperature carburization of austenitic stainless steel $z eng
610 0 $a C及Mo元素含量 $a 晶粒尺寸 $a 低溫滲碳 $a 沃斯田鐵系不銹鋼
610 1 $a C and Mo contents $a grain size $a low-temperature car
681 $a 008M/0019 $b 541208 7594 $v 2007年版
700 1 $a 陳 $b 炘圻 $4 撰 $3 673148
712 0 2 $a 國立高雄大學 $b 化學工程及材料工程學系碩士班 $3 353898
801 0 $a tw $b NUK $c 20141021 $g CCR
856 7 $z 電子資源 $2 http $u http://handle.ncl.edu.tw/11296/ndltd/65730751638257555452