| 摘要 |
<p>A method for achieving both improved high strength and improved ductility in intermediate phases is provided. The method, briefly stated, comprises the steps of providing a melt whose composition substantially corresponds to that of a preselected intermetallic phase having a crystal structure of the LI2 type, such as nickel aluminide, modified with from about 0.01 to 2.5 atomic percent boron, and rapidly solidifying the melt at a cooling rate of at least about 103°C/ second to form a solid body, the principal phase of which is of the LI2 type crystal structure in either its ordered or disordered state.</p> |
