http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : S. P. KumareshBabu (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Effect of Lanthanum Addition on Grain Refinement and Mechanical Properties of Mg–9Li–3Al Alloy
P. Dinesh,S. P. KumareshBabu,S. Natarajan 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.10
The impact of lanthanum addition on the microstructural changes and mechanical characteristics of Mg–9Li–3Al + xLaalloys are studied. The alloys are fabricated through a liquid metallurgy route involving stir casting by an electrical resistancefurnace. The microstructural analysis showed that the as-cast alloys primarily comprises of α-Mg and β-Li phases. Irregular distribution of Al–Li lamellar and some granular fragments MgLi2Alobserved over the magnesium-rich α-phaseand lithium-rich β-phase. The influence of lanthanum addition to the alloy system leads to grain refinement by formingAl11La3and Al4Laintermetallics. Among the series of cast alloys, the Mg–9Li–3Al–1La alloy exhibits excellent ultimatetensile strength—178 MPa with 10.2% elongation. Addition of 1.5 wt% La and beyond tends to coarsen the grains leadingto a reduction in mechanical strength. Hot extruded Mg–9Li–3Al–1La alloy exhibited more refinement in the microstructureand breakdown of intermetallic (Al4La and Al11La3)is observed. A significant improvement in the UTS values around 39%displayed by the Mg–9Li–3Al–1La alloy extruded at a ratio of 25:1.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
