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金属学报  1985, Vol. 21 Issue (6): 26-32    
  论文 本期目录 | 过刊浏览 |
时效对Cu-Zn-Al合金热弹性马氏体转变的影响
汪明朴;曹明盛
中南矿冶学院;中南矿冶学院
EFFECT OF AGING ON THERMOELASTIC MARTENSITE TRANSFORMATION IN Cu-Zn-Al ALLOY
by WANG Mingpu;CAO Mingsheng Central South Institute of Mining and Metallurgy; Changsha
引用本文:

汪明朴;曹明盛. 时效对Cu-Zn-Al合金热弹性马氏体转变的影响[J]. 金属学报, 1985, 21(6): 26-32.
, . EFFECT OF AGING ON THERMOELASTIC MARTENSITE TRANSFORMATION IN Cu-Zn-Al ALLOY[J]. Acta Metall Sin, 1985, 21(6): 26-32.

全文: PDF(604 KB)  
摘要: 本文用直流电阻法研究了时效对M_s点高于室温的工业纯Cu—Zn—Al合金热弹性马氏体转变的影响。若该合金从高温无序β相区淬火后立即在马氏体状态充分时效,则热弹性马氏体会发生稳定化,在升降温的电阻—温度曲线上,马氏体不再呈现热弹性正逆转变的特征;若该合金淬火后立即在β_1状态(母相状态)时效,则随着β_1状态时效时间的延长,合金马氏体的热弹性转变特性会逐步保持下来,其马氏体相变点和马氏体相对可逆转变量逐渐趋近一稳定值,在随后的热循环中它们变化很小.可以认为,马氏体态时效所引起马氏体的稳定化与马氏体的再有序化及过饱和空位的聚集等过程有关。
Abstract:The effect of aging on the thermoelastic martensite transformation of thecommercial. pure Cu-17.99 at. -%Zn-13.63 at.-%Al alloy with M_s over room tempe-rature has been studied by means of the measurement of electrical resistance.When the alloy was fully aged in the martensite state immediately after quench-ing from high temperature in the disordered β-phase region, the thermoelasticmartensite may be stabilized and featured no more in the thermoelastic transformation or reversal on the resistance-temperature curve. When the alloy was agedin the β_1-state immediately after quenching, as the aging time prolonging, thefeature of the thermoelastic transformation may be maintained gradually, as wellas the phase transition temperature and the relative amount of reversible transfor-mation of martensite may be gradually tending towards a stable value. In thethermal cycling afterwards, these seem to change no longer. It is suggested thatreordering in the martensite might coniribute to stabilization after aging in themartensite state.
收稿日期: 1985-06-18     
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