TASK 70-37-27-370-501 Precipitation Heat Treatment Of Nickel Castings

DMC:V2500-00-70-37-27-00A-631A-D|Issue No:001.00|Issue Date:2013-03-20

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 70-37-27-370-501 Precipitation Heat Treatment Of Nickel Castings

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

WARNING

IT IS THE RESPONSIBILITY OF THE OERATOR TO OBTAIN AND OBSERVE THE MANUFACTURES MATERIAL SAFETY SHEETS FROM THE CONSUMABLE MATERIALS INFORMATION SUCH AS HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.

Procedure

    1. SUBTASK 70-37-27-370-001 Procedure

      1. General.

      1. Precipitation heat treatment of material is done after all high temperature processing (such as, coating, brazing or transient liquid phase bonding or similar processing).

      2. Precipitation heat treatment is designed to promote the precipitation of one or more phases to make the mechanical properties of the material most effective.

      2. Atmosphere.

      1. Air, vacuum, argon, helium or hydrogen is an acceptable atmophere.

    3. Minimum average cooling rate is 10 deg F (6 deg C)/minute to 1200 deg F (649 deg C).

    4. Temperature and Time Requirements (unless specified differently) are given in Table 1.

      IAE

      Spec

      Temperature Range

      Time

      (Hours)

      *

      1426

      1575 to 1625 deg F (857 to 885 deg C)

      8

      1447

      1575 to 1625 deg F (857 to 885 deg C)

      12

      1480

      1575 to 1625 deg F (857 to 885 deg C)

      32

      **

      1484

      1275 to 1325 deg F (691 to 718 deg C)

      24

      *

      An alternate precipitation heat treatment time of 12 hours is permitted unless specified differently

      **

      An alternative precipitation heat treatment can be done if you increase the temperature to 1575 to 1625 deg F (857 to 885 deg C) and hold at heat for 8, 12 or 32 hours.

Requirements After Job Completion

Follow-On Conditions

NONE