Partial annealing

AI. 3.0 mitt. Mg bal. then partially annealed) RolIed-shcct (strain-hardened, 32 42 15 73 medium. strength... 

Strain hardened. Material subjected to the application of cold work after annealing (or hot forming) or to a combination of cold work and partial annealing/stabilising in order to secure the specified mechanical properties. The designations 1-8 are in ascending order of tensile strength... 

The ring seal at A is made in the early stages and is partially annealed. This part of the assembly is then inserted into the prepared tube B which is held clamped, and, when seated well, is itself clamped at C (Figure 62, II). Using a hand torch and exerting care to warm... 

F as fabricated O annealed H10 and Fill slightly strain hardened H23, F124 and H26 strain hardened and partially annealed T4 solution heat treated T5 artificially aged only T6 solution heat treated and artificially aged T8 solution heat treated, cold worked and artificially aged. 

Dealumination processes are usually used in conjunction with production of the acid form of zeolite Y for many catalytic apphcations, and zeolites A and X are in most cases no longer used in acid catalytic applications because the high amount of aluminum in their frameworks makes them difficult to stabilize using various dealumination techniques. Successful dealumination and at least partial annealing of defects, resulting from movement of silicon cations to the aluminum vacancies, can be assessed by measurement of the reduction of the unit cell size of the zeolite. This unit cell reduction is a consequence of the relative ionic radii of AF (0.54 A) and Si + (0.40A). 

Figure 11.4 shows the X-ray diffraction patterns of GNFs and SWNTs in the initial and hydrogenated states and after various annealing procedures. Partial annealing with the removal of 40% of hydrogen absorbed under pressure... 

Fission-track Closure Temperatures and the Partial Annealing Zone APPLICATIONS... 

AFT, apatite fission track PA, partially annealed Tot A, totally unannealed Un, unannealed. 

Figure 8.38b gives an experimental display of the consequence of the quadratic Stark effect of the profile of the 3p i (P) line in a partially annealed NTD silicon sample. 

FTPAZ Fission Track Partial Annealing Zone... 

The partial annealing zone lies between depths of 1.8 and 4.2 km where the temperature rises from 60°C at 1.8 km to 130°C at 4.2 km. In this temperature interval the retention of fission tracks by apatite decreases with increasing temperature which means that the fission-track dates decrease with depth and approach 0 Ma at 4.2 km (130°C). 

H2 H3 Strain-hardened and partially annealed Strain-hardened and stabilized (mechanical properties stabilized by low-temperature thermal treatment)... 

For cold worked wrought alloys, partially annealed to obtain an intermediate temper, the increase in... 

H2x Strain hardened only and partially annealed to achieved required temper H3x Strain hardened only and stabilized by low-temperature heat treatment to achieve required temper... 

The absolute need for a distribution of relaxation times can be illustrated by a more complicated thermal history. The sample is annealed to equilibrium above the glass-transition interval and then quenched rapidly to a temperature deep within the glass-transition region. It is isothermally annealed until its volume achieves a value consistent with a glass with a fictive temperature in the middle of the glass-transition interval. The partially annealed glass is then rapidly heated to this fictive temperature, where the sample achieves a volume exactly equal to its equilibrium value. The volume then increases spontaneously to a maximum value and finally relaxes back to its equilibrium volume. This trajectory is called the "memory effect" and is shown in Figure 8.2. 

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