热加工工艺
熱加工工藝
열가공공예
HOT WORKING TECHNOLOGY
2009年
22期
66-68
,共3页
张战英%王卫民%曹继敏%肖松涛
張戰英%王衛民%曹繼敏%肖鬆濤
장전영%왕위민%조계민%초송도
冷加工%显微组织%力学性能
冷加工%顯微組織%力學性能
랭가공%현미조직%역학성능
cold deformation%microstructure%mechanical properties
研究了Ti13Nb13Zr合金在冷加工后的组织及力学性能,通过不同冷加工率对组织及力学性能产生的影响,分析了冷加工过程中的变形特点.结果表明,随着冷变形量的增大,合金显微组织逐渐发生变化,材料强度增加很快;在变形初始阶段,位错滑移运动剧烈,使得合金的一部分相对于另一部分发生了剪切变形,出现了孪生变形,当合金的冷变形量继续增大,位借滑移为主要变形方式,没有观察到挛晶.
研究瞭Ti13Nb13Zr閤金在冷加工後的組織及力學性能,通過不同冷加工率對組織及力學性能產生的影響,分析瞭冷加工過程中的變形特點.結果錶明,隨著冷變形量的增大,閤金顯微組織逐漸髮生變化,材料彊度增加很快;在變形初始階段,位錯滑移運動劇烈,使得閤金的一部分相對于另一部分髮生瞭剪切變形,齣現瞭孿生變形,噹閤金的冷變形量繼續增大,位藉滑移為主要變形方式,沒有觀察到攣晶.
연구료Ti13Nb13Zr합금재랭가공후적조직급역학성능,통과불동랭가공솔대조직급역학성능산생적영향,분석료랭가공과정중적변형특점.결과표명,수착랭변형량적증대,합금현미조직축점발생변화,재료강도증가흔쾌;재변형초시계단,위착활이운동극렬,사득합금적일부분상대우령일부분발생료전절변형,출현료련생변형,당합금적랭변형량계속증대,위차활이위주요변형방식,몰유관찰도련정.
The microstructure and mechanical properties of Ti 13Nb 13Zr alloy under cold deformation were studied. The deformation characteristics of cold deformation process were analyzed by the effect of different cold deformation rates on microstructure and mechanical properties. The results show that, with the increase of cold deformation quantity, the microstructure of the alloy changes gradually, but the strength of the material increases quickly; in the origin stage of deformation, dislocation slip movement is severe, making the occurance of the shear deformation for the part of the alloy in relation to another part, and the occourance of twin deformation. When increasing the amount of cold deformation, dislocation slip is as the main deformation mode, and there are no twins.