2041不銹鋼在高爾夫鍛造鐵頭研究

The Research of 2041 Stainless Steel on the Forged Iron-Head of Golf-Club

張育維(Yu-Wei Chang)

指導教授 ： 趙志燁

國立屏東科技大學/工學院/機械工程系所/碩士(2016年)

摘要

本文利用合金設計開發新型鍛造雙相不銹鋼合金，以為高爾夫球桿頭應用之參考，合金成分設計為：20.0±1.0wt.%Cr、4.5±0.5wt.%Ni、0.7± 0.3wt.%Mn、0.5±0.3wt.%Si、0.05±0.03wt.%C，和/或0.8±0.2wt.%Nb。合金成分介於此範圍內者，經鍛造與熱處理後，其基本顯微結構為肥粒鐵+(25~38)%沃斯田鐵。根據目前研究顯示：
合金A(20.1%Cr、4.53%Ni、0.90%Mn、0.40%Si與0.08%C)經鍛造後，其機械性質為：抗拉強度944MPa，降伏強度368MPa，延伸率19.8%，以及硬度HRc17.5。經過550℃~1050℃不同時間退火後，其機械性質範圍為：抗拉強度866~980MPa，降伏強度364~789MPa，延伸率11.9~33.0%，以及硬度HRc11~26。合金B(20.3%Cr、4.34%Ni、0.81%Mn、0.56%Si、0.04%C與0.88%Nb)經鍛造後，其機械性質為：抗拉強度954MPa，降伏強度367MPa，延伸率21.6%，以及硬度HRc18.5。經過550℃~1050℃不同時間退火後，其機械性質範圍為：抗拉強度861~994MPa，降伏強度367~785MPa，延伸率12.7~33.4%，以及硬度HRc10~27。合金A與B經鍛造與1050℃退火，可獲致最佳的強度與延伸率組合，且球頭具備易調桿與不易生銹之特性。

關鍵字

雙相不銹鋼 ； 鍛造 ； 機械性質 ； 高爾夫球桿

並列摘要

A duplex-phase stainless steel has been developed for the forged Golf- head Club. The composition has been designed as the alloy contained with Cr, Ni, Mn, and Nb alloy elements being in range of 20.0±1.0wt.%, 4.5±0.5wt.%, 0.7±0.3wt.%, and 0.8±0.2wt.%, respectively. Being hot-forged and heated-treatment, the microstructure of these alloys are essential the ferrite matrix with (25~38)% austenite. Some results are described as following:
The UTS, YS, and elongation and hardness of the as-forged Fe-20.1%Cr- 4.53%Ni-0.90%Mn-0.40%Si-0.08%C alloy are 944MPa, 368MPa, 19.8% and HRc17.5, respectively. Being at 550℃~1050℃annealed for various times, the UTS, YS, and elongation and hardness of these alloy arein the range of 866~ 980MPa, 364~789MPa, 11.9~33.0% and HRc11~26, respectively. The UTS, YS, and elongation and hardness of the as-forged Fe-20.3%Cr-4.34%Ni- 0.81%Mn-0.56%Si-0.04%C-0.88Nb alloy are 954MP, 367MPa, 21.6% and HRc18.5, respectively. Being at 550℃~1050℃annealed for various times, the UTS, YS, and elongation and hardness of these alloy arein the range of 861~994MPa, 367~785MPa, 12.7~33.4% and HRc10~27, respectively. The optimum heated treatment condiotion is annealed at 1050℃ for 30min, resulting to the present alloys possess the best mechanical property, meanwhile , the present alloys also possess the property for adjusted easily and rust hard.

並列關鍵字

duplex stainless steel ； forge ； mechanical property ； golf-club

參考文獻

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