Bladesmithing at South Dakota School of Mines and Technology

被引:0
作者
Jack Moehring
Michael Willman
Isaac Pulscher
Devin Rowe
机构
[1] South Dakota School of Mines and Technology,Department of Materials and Metallurgical Engineering
[2] Nucor Steel,undefined
[3] Tinker Air-Force,undefined
[4] School of Mines and Technology,undefined
来源
JOM | 2016年 / 68卷
关键词
Martensite; High Carbon Content; Casting Sand; White Cast Iron; Slag Inclusion;
D O I
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中图分类号
学科分类号
摘要
A Damascus-style layered blade was made by incorporating bloomery iron and crucible steel. A bloomery furnace was constructed and charged with Black Hills, SD bog iron ore, alloys, and hardwood charcoal. At sufficient temperature, the furnace was bottom-tapped to produce a low carbon iron bloom. A high-carbon crucible steel was made in a natural gas-fired furnace using commercial hematite pellets and coke. The steel was cast into sand molds. The two types of iron/steel were forged together using traditional blacksmithing techniques in a coke-fired forge. The forging process continued until the metal could be evenly worked, signifying the homogenization of the two metals. Once homogenized, the metal was shaped into a blade and subsequently ground into near-final shape, heat-treated, and finish-machined. The microstructure and mechanical properties of the blade were characterized using optical microscopy, hardness and tensile testing. The grain structure of the material varied widely and was not entirely homogenous at the welded layers, but the layers themselves were well-homogenized. The finished blade was compared to a common steel (1095) used for bladesmithing and was found to have similar hardness but significantly lower tensile strength.
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页码:3186 / 3192
页数:6
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