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公开(公告)号：US20120060981A1
公开(公告)日：2012-03-15
申请号：US12882538
申请日：2010-09-15
申请人： Robin M. Forbes Jones , John V. Mantione , Urban J. De Souza , Jean-Philippe Thomas , Ramesh Minisandram , Richard L. Kennedy , R. Mark Davis
发明人： Robin M. Forbes Jones , John V. Mantione , Urban J. De Souza , Jean-Philippe Thomas , Ramesh Minisandram , Richard L. Kennedy , R. Mark Davis
摘要： Methods of refining the grain size of titanium and titanium alloys include thermally managed high strain rate multi-axis forging. A high strain rate adiabatically heats an internal region of the workpiece during forging, and a thermal management system is used to heat an external surface region to the workpiece forging temperature, while the internal region is allowed to cool to the workpiece forging temperature. A further method includes multiple upset and draw forging titanium or a titanium alloy using a strain rate less than is used in conventional open die forging of titanium and titanium alloys. Incremental workpiece rotation and draw forging causes severe plastic deformation and grain refinement in the titanium or titanium alloy forging.
摘要翻译： 精炼钛和钛合金晶粒尺寸的方法包括热管理的高应变率多轴锻造。 高应变率在锻造期间绝热加热工件的内部区域，并且使用热管理系统将外表面区域加热到工件锻造温度，同时使内部区域冷却至工件锻造温度。 另外的方法包括使用小于用于钛和钛合金的常规开模锻造中的应变速率的多个镦锻和拉伸锻造钛或钛合金。 增加的工件旋转和拉伸锻造会导致钛或钛合金锻造中严重的塑性变形和晶粒细化。
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公开(公告)号：US08613818B2
公开(公告)日：2013-12-24
申请号：US12882538
申请日：2010-09-15
申请人： Robin M. Forbes Jones , John V. Mantione , Urban J. De Souza , Jean-Philippe Thomas , Ramesh S. Minisandram , Richard L. Kennedy , R. Mark Davis
发明人： Robin M. Forbes Jones , John V. Mantione , Urban J. De Souza , Jean-Philippe Thomas , Ramesh S. Minisandram , Richard L. Kennedy , R. Mark Davis
摘要： Methods of refining the grain size of titanium and titanium alloys include thermally managed high strain rate multi-axis forging. A high strain rate adiabatically heats an internal region of the workpiece during forging, and a thermal management system is used to heat an external surface region to the workpiece forging temperature, while the internal region is allowed to cool to the workpiece forging temperature. A further method includes multiple upset and draw forging titanium or a titanium alloy using a strain rate less than is used in conventional open die forging of titanium and titanium alloys. Incremental workpiece rotation and draw forging causes severe plastic deformation and grain refinement in the titanium or titanium alloy forging.
摘要翻译： 精炼钛和钛合金晶粒尺寸的方法包括热管理的高应变率多轴锻造。 高应变率在锻造期间绝热加热工件的内部区域，并且使用热管理系统将外表面区域加热到工件锻造温度，同时使内部区域冷却至工件锻造温度。 另外的方法包括使用小于用于钛和钛合金的常规开模锻造中的应变速率的多个镦锻和拉伸锻造钛或钛合金。 增加的工件旋转和拉伸锻造会导致钛或钛合金锻造中严重的塑性变形和晶粒细化。
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公开(公告)号：US07611592B2
公开(公告)日：2009-11-03
申请号：US11360065
申请日：2006-02-23
申请人： R. Mark Davis , Matthew J. Arnold
发明人： R. Mark Davis , Matthew J. Arnold
CPC分类号： B21B1/46 , B21B3/00 , C22C14/00 , C22F1/183 , Y10T29/4998 , Y10T29/49988 , Y10T29/49991
摘要： Various non-limiting embodiments of the present invention relate to methods of processing titanium alloys wherein the alloys are subjected to deformation above the beta transus temperature (Tβ) of the alloys. For example, one non-limiting embodiment provides a method of processing an alpha+beta or a near-beta titanium alloy comprising deforming a body of the alloy at a first temperature (T1) that is above the Tβ of the alloy; recrystallizing at least a portion of the alloy by deforming and/or holding the body at a second temperature (T2) that is greater than T1; and deforming the body at a third temperature (T3), wherein T1≧T3>Tβ; wherein essentially no deformation of the body occurs at a temperature below Tβ during the method of processing the titanium alloy.
摘要翻译： 本发明的各种非限制性实施方案涉及加工钛合金的方法，其中合金在合金的β转变温度（Tbeta）之上经受变形。 例如，一个非限制性实施例提供了一种处理α+β或近β钛合金的方法，包括在合金的Tbeta之上的第一温度（T1）使合金体变形; 通过使身体在大于T1的第二温度（T2）变形和/或保持来使至少一部分合金重结晶; 并在第三温度（T3）使身体变形，其中T1> = T3> Tbeta; 其特征在于，在钛合金的加工方法中，在Tbeta以下的温度下基本上不发生变形。
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