The loss in strength from spheroidization (Softening) is usually accompanied by a(n) _________ in ductility, which allows for deformation at stress concentrations.
A. IncreaseWhat structure is 409 stainless steel?
A. Martensitic________ significantly increases the probability and severity of blistering, HIC and SOHIC damage.
A. CausticCaustic stress corrosion cracking typically propagates _______ to the weld in adjacent base metal but can occur in the weld deposit or heat affected zone.
A. TransverseThermal fatigue cracks propagate ________ to the stress and are usually dagger shaped, transgranular and oxide-filled.
A. AxialIt is generally accepted that stresses approaching _________ are required for SCC to occur so that thermal stress relief is effective in preventing caustic SCC.
A. MAWPWhich of the following can be affected by 885?F Embrittlement?
A. 410 SSA metal cracks because of stress relaxation during postweld heat treatment (PWHT) of a heavy wall section. This type of cracking is best categorized as:
A. PWHT crackingEquipment that is temper embrittled may be susceptible to _______ during start-up and shutdown.
A. CreepWith short term overheating, time to failure will ___________ as internal pressures or loading decrease.
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