发明名称 |
Method for thermomechanical processing of ingot metallurgy near gamma titanium aluminides to refine grain size and optimize mechanical properties |
摘要 |
<p>A method for thermomechanically processing near-~c Ti aluminide alloy wrought prods. comprises: (a) coating a near-~c Ti aluminide alloy ingot; (b) hot isostatic pressing (HIP'ing) (a) to seal off casting defects; (c) preparing the HIP'ed ingot into suitable forging preforms; (d) isothermally forging the forging preforms into end product preforms at forging temp. close to a phase line between ~a+~c and ~a-2+~c phase fields to break down the coarse ingot microstructure and to yield a largely equi-mixed ~c microstructure; and, (e) processing the end product preforms into desired wrought end products.</p> |
申请公布号 |
EP0685568(B1) |
申请公布日期 |
1999.04.07 |
申请号 |
EP19950107568 |
申请日期 |
1995.05.17 |
申请人 |
ROCKWELL INTERNATIONAL CORPORATION |
发明人 |
SEMIATIN, SHELDON LEE;EL-SOUDANI, SAMI M.;VOLLMER, DONALD C.;THOMPSON, CLARENCE R. |
分类号 |
B21B1/38;B21B3/00;C21D1/02;C22C14/00;C22F1/18;(IPC1-7):C22F1/18 |
主分类号 |
B21B1/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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