Isingeniso Sensimbi Engagqwali engu-17-4ph

Ipuleti lensimbi engagqwali elingu-17-4 (630) liyinsimbi engagqwali eqina nge-chromium-copper precipitation esetshenziselwa izinhlelo zokusebenza ezidinga amandla aphezulu kanye nezinga eliphakathi lokumelana nokugqwala. Amandla aphezulu
igcinwe cishe kuma-degree Fahrenheit angu-600 (ama-degree angu-316)
i-Celsius).

Izakhiwo Ezijwayelekile

I-Alloy yensimbi engagqwali engu-17-4 PH iyinsimbi engagqwali ye-martensitic eqinisa imvula enezengezo ze-Cu kanye ne-Nb/Cb. Ibanga lihlanganisa amandla aphezulu, ubulukhuni (kufika ku-572°F / 300°C), kanye nokugqwala.
ukumelana.

Idatha yeKhemistri

Ikhabhoni	Umkhawulo ongu-0.07
I-Chromium	15 – 17.5
Ithusi	3 – 5
Insimbi	Ibhalansi
I-Manganese	1 umkhawulo
I-Nickel	3 – 5
I-Niobium	0.15 – 0.45
I-Niobium+Tantalum	0.15 – 0.45
I-Phosphorus	Umkhawulo ongu-0.04
I-Silicon	1 umkhawulo
I-Sulphur	Umkhawulo ongu-0.03

Ukumelana Nokugqwala

I-Alloy 17-4 PH imelana nokuhlaselwa okugqwalayo kangcono kunanoma yiziphi izinsimbi eziqinile ezingagqwali futhi ifana ne-Alloy 304 ezindabeni eziningi.

Uma kunezingozi ezingaba khona zokuqhekeka kokugqwala kokucindezeleka, amazinga okushisa aphezulu okuguga kufanele akhethwe ngaphezu kuka-1022°F (550°C), okungcono kube ngu-1094°F (590°C). I-1022°F (550°C) izinga lokushisa elifanele kakhulu lokushisa kuma-chloride media.

1094°F (590°C) izinga lokushisa elifanele kakhulu kuma-H2S media.

Ingxube ingase ihlulwe yizimfantu noma ihlaselwe yimigodi uma ivezwa emanzini olwandle amile isikhathi eside.

Ayikwazi ukugqwala kwezinye izimboni zamakhemikhali, uphethiloli, iphepha, ubisi kanye nokucubungula ukudla (okulingana nebanga lika-304L).

Izicelo

· Ogwini lolwandle (ama-foil, amapulatifomu edekhi lendiza enophephela emhlane, njll.)· Imboni yokudla· Imboni ye-Pulp nephepha· Izindiza (ama-turbine blades, njll.)· Izingxenye zemishini · Imiphongolo yemfucuza yenuzi

Amazinga

· I-ASTM A693 ibanga 630 (AMS 5604B) UNS S17400· I-EURONORM 1.4542 X5CrNiCuNb 16-4· I-AFNOR Z5 CNU 17-4PH· I-DIN 1.4542