FATIGUE OF NITI THERMOELASTIC MARTENSITES

被引：282
作者：
MELTON, KN
MERCIER, O
机构：
[1] Brown Boveri Research Centre
来源：
ACTA METALLURGICA | 1979年 / 27卷 / 01期
关键词：
D O I：
10.1016/0001-6160(79)90065-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The mechanical fatigue of NiTi shape memory alloys has been extensively studied. Fatigue crack growth rates were measured and found to be lower than predicted from the phenomenological law relating growth rates to the elastic modulus. No influence of Ms, the temperature of the start of the martensite transformation, on crack growth rate was found, in contrast to the 107 cycle fatigue life where the fatigue limit increased with decreasing Ms, Low cycle fatigue measurements showed that the Coffin-Manson law is obeyed and for a fatigue life of 103 cycles, the measured total strain is ten times that for conventional alloys. The mechanical properties of these alloys are discussed in terms of the reversibility of the martensite deformation processes. © 1979.
引用
收藏
页码：137 / 144
页数：8
相关论文
共 16 条
[1]  
BIRNBAUM HK, 1960, T AM I MIN MET ENG, V218, P662
[2]  
BOETTNER RC, 1965, T METALL SOC AIME, V233, P379
[3]  
BROWN LC, 1975, METALL TRANS, VA 6, P1124, DOI 10.1007/BF02661373
[4]  
BUELER WJ, 1968, OCEAN ENGNG, V1, P105
[5]  
COFFIN LF, 1971, J MATER, V6, P388
[6]   EFFECT OF HIGH-VACUUM ON LOW-CYCLE FATIGUE LAW [J].
COFFIN, LF .
METALLURGICAL TRANSACTIONS, 1972, 3 (07) :1777-&
[7]  
COFFIN LF, 1959, T AM I MIN MET ENG, V215, P794
[8]  
CROSS WB, 1969, CR1433 NASA REP
[9]   MARTENSITIC-TRANSFORMATION AT A PROPAGATING CRACK [J].
HORNBOGEN, E .
ACTA METALLURGICA, 1978, 26 (01) :147-152
[10]  
JACKSON CM, 1972, SP5110 NASA REP
12