维普期刊资源整合服务平台（V6.5）

91篇 您的检索式：作者名="Loretto"

选中清除导出查看参考文献查看引证文献引用追踪共5页首页上一页第1页下一页末页 /5 跳转

	题名	作者	年代	出处	被引量
1	STRENGTHENING MECHANISMSIN TiAl BASED ALLOYS显示文摘The influence of heat treatment and of thermomechanical processing on the structure and properties of a range of TiAl based alloys has been assessed and in agreement with other reports it has been found that increased refinement of the microstructure leads to improved mechanical strength at room temperature, both for the lamellar and the duplex structures. In the case of alloys cooled rapidly from the alpha phase field the increased refinement in lamellar spacing leads to significant increases in room temperature strength but thermomechanical processing can lead to far greater increases. The origin of this increase in strength in samples with a lamellar structure has been assessed in terms of the ability of dislocations to cross gamma/gamma and gamma/alpha 2 lamellar interfaces. It was concluded that the alpha 2 gamma interfaces and the alpha itself are important factors in strengthening the lamellar alloys. The stability of the various structures developed either by appropriate heat treatments or by thermomechanical processing has been investigated by exposing samples for a range of times at temperatures between 700 and 1 000 ℃. It has been found that the yield strength and the ultimate tensile strength generally decreased by about 20% during high temperature exposure at 700 ℃ for 3 000 h. The detailed behaviour on exposure at 700 ℃ has been found to be a function of alloy composition, with complex precipitates being formed in some alloys, but in all cases the amount of alpha 2 decreased with increased heat treatment time. It has been found that during exposure the alpha 2 lamellae decomposed to gamma phase by a mechanism that can involve the formation of thin gamma lamellae within the original alpha 2 lamellae.	M. H. Loretto, A.B.Godfrey and D.Hu Interdisciplinary Research Centre (IRC) in Materials for High Performance Applications, The University of Birmingham, Edgbaston B15 2TT, UK	1999	中国有色金属学会会刊:英文版1999，9，S1：	2
2	The effect of process parameters and heat treatment on the micro- structure of direct laser fabricated TiAI alloy samples显示文摘	SRIVASTAVA D CHANG I T H LORETTO M H	2001	Intermetallics2001，9，12：	1
3	Identlification of orthorhombic phase in a high-strength cupronickel显示文摘	GRYLLS R J TUCK C D S LORETTO M H	1996	Scripta Materialia1996，43，1：	1
4	Alloy and process development of TiAl显示文摘	WU X H HU D LORETTO M H	2004	Sci2004，39，12：	1
5	Single step centrifugal casting TiAl automotive valves显示文摘	LIU K MAY C GAO M RAO G B LI Y Y WEI K WU Xin-hua LORETTO M H	2005	Intermetallics2005，13，9：	1
6	Effect of aluminium on ordering of highly stabilized β-Ti-V-Cr alloys显示文摘	Blenkinsop P A Loretto M H	1998	Materials Science and Technology1998，14，8：	1
7	Effect of carbon and oxygen on microstrueture and mechanical properties of Ti-25V-15Cr-Alalloy 显示文摘	LI Y G BLENKINSOP P A LORETTO M H	1999	Aeta Mater1999，47，10：	1
8	Effect of aluminium on deformation structure of highly stabilized β-Ti-V-Cr alloys显示文摘	Blenkinsop P A Loretto M H	1999	Materials Science and Technology1999，15，2：	1
9	The deformation behaviour of single crystals of the CuCrSi02 system-I: Yield and pre-yield behavior 显示文摘	] LONG N J LORETTO M H LLOYD C H	1980	Acta Metall1980，28，6：	1
10	Structure and stability of precipitates in 500℃ exposed Ti-25V-15Cr-xAl alloys显示文摘	Blenkinsop P A Loretto M H	1999	Acta Mater1999，46，16：	1
11	Titanium precipitation in substoichiometric TiC particles显示文摘	Hu D Johnson T P Loretto M H	1994	Scripta Mater1994，30，8：	1
12	Influence of lithium additions on precipitation and age hardening of 7075 alloy显示文摘	Huang Z W Loretto M H	1993	Materials Sciences and Technology1993，，9：	1
13	Effect of carbon and oxygen on microstructure and mechanical properties of Ti-25V-15Cr-2Al alloy显示文摘	Blenkinsop P A Loretto M H	1999	Acta Mater1999，47，10：	1
14	Structure and stability of Precipitates in 500 ℃ exposed Ti-25V-15Cr-xAl alloy 显示文摘	LI Y G BLENKINSOP P A LORETTO M H	1998	Acta Mater1998，46，：	1
15	In situ observations of the formation of martensite in stainless steel显示文摘	Brooks J W Loretto M H Smailman R E	1979	Acta Metall1979，27，2：	1
16	Greep behariour of Ti3Al-based titanium aluminide alloys containing molybdenum显示文摘	Hung C Loretto M H	1995	Materials Science and Engineering1995，，：	1
17	Advances in optimisation of mechanical properties in cast TiA1 alloys 显示文摘	HU D WU X LORETTO M H	2005	Interme- tallics2005，13，9：	1
18	Advances in Optimisation of Mechanical Properties in Cast TiA1 Alloys 显示文摘	Hu D Wu X Loretto M H	2005	Intermetallics2005，13，9：	1
19	Micro-structural characterization of gas atomized Ti6Al4V-TiC composite 显示文摘	Hu D Loretto H M	1994	Scripta Metallurgica et Materialia1994，31，5：	1
20	Titanium precipitation in substoichiometric TiC particles显示文摘	Hu D Johnson T P Loretto M H	1994	Scripta Mater1994，30，8：	1

返回顶部每页显示：

共5页首页上一页第1页下一页末页 /5 跳转

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

用户提示