科研之友
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摘要
The columnar-grained Cu71.5Al17.5Mn11 shape memory alloy was treated by single-pass hot rolling at 900 degrees C with a thickness reduction of 67.3% followed by immediate water quenching. Dynamic recovery other than discontinuous dynamic recrystallization occurred during the treatment process, bringing about retained columnar grains with <001> textures, as well as dislocations introduced into the parent matrix. As a result, a large maximum recoverable strain of more than 11% was maintained due to the retained beneficial grain characteristics. The critical stress for inducing martensitic transformation and stress hysteresis were enhanced mainly due to the existence of dislocations.
- 出版日期2017-4
- 单位北京科技大学
