稀有金属
稀有金屬
희유금속
CHINESE JOURNAL OF RARE METALS
2009年
6期
811-815
,共5页
机械合金化%Fe-Si-Al合金%微观组织%力学性能
機械閤金化%Fe-Si-Al閤金%微觀組織%力學性能
궤계합금화%Fe-Si-Al합금%미관조직%역학성능
mechanical alloying%Fe-Si-Al alloy%microstructure%mechanical property
采用机械合金化制备Fe85-Si9. 5-Al5. 5合金粉末, 利用金相仪、激光粒度分析仪、 SEM和XRD研究了球磨时间及烧结工艺对Fe-Si-Al合金断裂形貌、微观组织及力学性能的影响. 试验结果表明, 将球磨10 h的复合粉末冷压成形后, 烧结温度为1350 ℃, 保温2 h, 可获得综合性能最佳的Fe-Si-Al合金, 致密度达99.6%、抗弯强度为801 MPa, 硬度为65.68HRA.
採用機械閤金化製備Fe85-Si9. 5-Al5. 5閤金粉末, 利用金相儀、激光粒度分析儀、 SEM和XRD研究瞭毬磨時間及燒結工藝對Fe-Si-Al閤金斷裂形貌、微觀組織及力學性能的影響. 試驗結果錶明, 將毬磨10 h的複閤粉末冷壓成形後, 燒結溫度為1350 ℃, 保溫2 h, 可穫得綜閤性能最佳的Fe-Si-Al閤金, 緻密度達99.6%、抗彎彊度為801 MPa, 硬度為65.68HRA.
채용궤계합금화제비Fe85-Si9. 5-Al5. 5합금분말, 이용금상의、격광립도분석의、 SEM화XRD연구료구마시간급소결공예대Fe-Si-Al합금단렬형모、미관조직급역학성능적영향. 시험결과표명, 장구마10 h적복합분말냉압성형후, 소결온도위1350 ℃, 보온2 h, 가획득종합성능최가적Fe-Si-Al합금, 치밀도체99.6%、항만강도위801 MPa, 경도위65.68HRA.
Alloy powder of Fe85-Si9. 5-Al5. 5 was prepared by mechanical alloying. Effect of different milling time and sintering process on fracture, microstructure and mechanical property was analyzed by metallograph, laser particle analyzer, XRD and SEM. The results showed that Fe85-Si9. 5-Al5. 5 alloy had the best comprehensive properties after the composite powder was milled for 10 h and sintered at 1350 ℃ for 2 h. The relative density, bending strength and hardness of the sample reached 99. 6%, 801 MPa and 65. 68HRA respectively.
