上海交通大学学报
上海交通大學學報
상해교통대학학보
JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY
2001年
3期
469-472
,共4页
织构%形状记忆合金%织构相变%马氏体相变
織構%形狀記憶閤金%織構相變%馬氏體相變
직구%형상기억합금%직구상변%마씨체상변
用X射线织构仪测定了TiNi和CuZnAl合金的母相奥氏体、产品相马氏体的极图，计算了测定极图各自的位向分布函数.分析结果表明，TiNi合金奥氏体具有一个弱的织构组元{4,0,3}〈0,1,0〉和一个α纤维织构，TiNiCu合金马氏体有6个主要的织构组元；CuZnAl合金奥氏体织构是一个纤维织构，其纤维轴为〈1,1,0〉平行于轧向，位向密度沿纤维轴从{001}〈l－1 0〉到{111}〈1-1 0〉扩展，在位向{001}〈1-1 0〉附近，获得最大位向密度为26.9.CuZnAl合金马氏体有10个主要的织构组元.从奥氏体与马氏体的织构分析发现，两者织构是相互关联的，一个奥氏体的织构组元对应多个马氏体的织构组元，此结果符合马氏体形成自相适应形貌的要求.
用X射線織構儀測定瞭TiNi和CuZnAl閤金的母相奧氏體、產品相馬氏體的極圖，計算瞭測定極圖各自的位嚮分佈函數.分析結果錶明，TiNi閤金奧氏體具有一箇弱的織構組元{4,0,3}〈0,1,0〉和一箇α纖維織構，TiNiCu閤金馬氏體有6箇主要的織構組元；CuZnAl閤金奧氏體織構是一箇纖維織構，其纖維軸為〈1,1,0〉平行于軋嚮，位嚮密度沿纖維軸從{001}〈l－1 0〉到{111}〈1-1 0〉擴展，在位嚮{001}〈1-1 0〉附近，穫得最大位嚮密度為26.9.CuZnAl閤金馬氏體有10箇主要的織構組元.從奧氏體與馬氏體的織構分析髮現，兩者織構是相互關聯的，一箇奧氏體的織構組元對應多箇馬氏體的織構組元，此結果符閤馬氏體形成自相適應形貌的要求.
용X사선직구의측정료TiNi화CuZnAl합금적모상오씨체、산품상마씨체적겁도，계산료측정겁도각자적위향분포함수.분석결과표명，TiNi합금오씨체구유일개약적직구조원{4,0,3}〈0,1,0〉화일개α섬유직구，TiNiCu합금마씨체유6개주요적직구조원；CuZnAl합금오씨체직구시일개섬유직구，기섬유축위〈1,1,0〉평행우알향，위향밀도연섬유축종{001}〈l－1 0〉도{111}〈1-1 0〉확전，재위향{001}〈1-1 0〉부근，획득최대위향밀도위26.9.CuZnAl합금마씨체유10개주요적직구조원.종오씨체여마씨체적직구분석발현，량자직구시상호관련적，일개오씨체적직구조원대응다개마씨체적직구조원，차결과부합마씨체형성자상괄응형모적요구.
The austenitic and martensitic pole figures for TiNi and CuZnAl shape memory alloys were measured by X-ray texture goniometer, subsequently, the respective orientation distribution functions (ODF) were calculated. The ODF analysis showed that TiNi austenite has a weak {403}〈010〉 component and an a fiber texture; TiNi martensite has 6 main texture components; CuZnAl austenite is a sharp 〈110〉 fiber texture; CuZnAl martensite has 10 main texture components. The austenitic and martensitic textures are well connected to each other by following the lattice correspondence relationships between the austenite and martensite and the principles of martensite variant selection.
