GB/T 14999.7-2010 Active National standards

GB/T 14999.7-2010 Test methods for grain sizes,primary dendrite spacing and microshrinkage of superalloy castings

Publish Date: 2010-12-23 Implement Date: 2011-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 14999.7-2010

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: High-temperature alloys

ICS Name: Other steel products

Publish Date: 2010-12-23

Implement Date: 2011-09-01

Pages: 18 pages

Scope

1.1 This standard specifies the determination methods and result presentation methods for the macroscopic and microscopic average grain size of high-temperature alloy castings, the grain size of columnar crystals, the average spacing of columnar crystals and single-crystal primary dendrites, and the determination of microscopic porosity.
1.2 This standard is applicable to the determination of grain size in ordinary precision castings and directionally solidified columnar crystal castings; the determination of the spacing of primary dendrites in directionally solidified columnar crystal and single-crystal castings; and the determination of microscopic porosity in ordinary precision castings and directionally solidified columnar crystal and single-crystal castings.
1.3 This standard is only a recommended determination method and does not stipulate the acceptable quality level range for acceptance testing of high-temperature alloy castings.