کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1571825 1000656 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Implication of peritectic composition in historical high-tin bronze metallurgy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Implication of peritectic composition in historical high-tin bronze metallurgy
چکیده انگلیسی

Bronze alloys of varying tin contents from 0% to 28% were cast and then heated at elevated temperatures followed by quenching to examine the variation of microstructure, hardness and fracture characteristics. The results show that hardness increases with tin content and almost reaches the upper limit at 22% tin. Evidence has been found that the small-scale α dendrites spanning across the former β grains that were transformed to martensite serve as interlocking micro-bridges and thereby substantially reinforce the boundary strength to enhance fracture toughness. This effect is extremely sensitive to the α fraction and can best be obtained in alloys of near 22% tin. This specific composition, termed peritectic, seems optimal for sufficient strength without serious brittleness, and allows objects for a similar purpose to be made with less material. The choice of near peritectic composition in historical high-tin bronze metallurgy constitutes an excellent example of human adaptation to harsh environments where access to tin was limited and material cost had to be minimized.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 60, Issue 11, November 2009, Pages 1268–1275
نویسندگان
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