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您的检索式：作者名="S.P.Ringer"
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| 1 | Germanium-rich 'starburst' cores in silica-based optical fibres fabricated by Modified Chemical Vapour Deposition显示文摘 | P.McNamara K.J.Lyytikainen T.Ryan I.J.Kaplin S.P.Ringer | | 0，，： | 1 |
| 2 | On the microstructure and texture evolution in 17-4 PH stainless steel during laser powder bed fusion: Towards textural design显示文摘Additive Manufacturing (AM) of metals allows the production of parts with complex designs, offeringadvanced properties if the evolution of the texture can be controlled. 17-4 precipitation hardening (PH)stainless steel is a high strength, high corrosion resistance alloy used in a range of industries suitable forAM, such as aerospace and marine. Despite 17-4 PH being one of the most common steels for AM, thereare still gaps in the understanding of its AM processing–structure relationships. These include the natureof the matrix phase, as well as the development of texture through AM builds under different processingconditions. We have investigated how changing the laser power and scanning strategy affects the microstructure of 17-4 PH during laser powder bed fusion. It is revealed that the matrix phase is δ-ferritewith a limited austenite presence, mainly in regions of the microstructure immediately below melt pools.Austenite fraction is independent of the printing pattern and laser power. However, reducing the timebetween adjacent laser passes during printing results in an increase in the austenite volume fraction.Another effect of the higher laser power, as well as additional remelting within the printing strategy, isan increase in the average grain size by epitaxial ferrite grain growth across multiple build layers andthe development of a mosaic type microstructure. Changes to the scanning strategy have significant impacts on the textures observed along the build direction, while (100) texture along the scanning directionis observed consistently. Mechanisms for texture formation and the mosaic structure are proposed thatpresents a pathway to the design of texture via AM process control. | M.S.Moyle N.Haghdadi X.Z.Liao S.P.Ringer S.Primig | 2022 | Journal of Materials Science & Technology2022，，22： | 0 |
| 3 | Al-Ag-(Sc)合金的时效析出行为显示文摘通过时效硬化曲线的测量及时效组织的透射电镜分析,研究了微量钪对Al Ag合金时效析出行为的影响。研究结果表明:在Al Ag合金中添加0.2%Sc(质量分数),可增强合金350℃的时效硬化效果,延长达到峰时效的时间。微观组织分析发现,微量钪的添加促使合金中γ′相弥散细小地析出,同时钪的存在减少了γ′相宽面上的位错台阶数。含钪Al 15Ag合金中γ′相长大过程比较缓慢的微观机理是微量钪的添加影响了合金中γ′相宽面上的台阶分布。 | 陈志国 郑子樵 S.P.Ringer | 2004 | 中国有色金属学报2004，14，F01： | 0 |
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